Old Jeep drivers beware!
05-20-2006, 05:52 PM
#101
Guest
Posts: n/a
Re: Old Jeep drivers beware!
First marketing campaign for rotating the lifters was on the Oldsmobile
engine--it backfired when GM was discovered to be putting mere Chevrolet
engines in some Olds models and had to pay off on lawsuits.
Some of these oil tales remind me a lot of the 'death to air cooled
engines' tales when lead was taken out of gasoline--the old air cooled
engines were predicted to be suffering massive exhaust valve damage due
to the loss of the lubricating power of lead deposits.
Earle Horton proclaimed:
> Does this discussion have anything to do with flat head versus overhead, or
> the part of the lifter face that contacts the cam? At some point, engine
> manufacturers figured out how to make the lifters rotate during operation.
> This makes the job of the lubricant easier.
>
> Earle
>
> "Jeffrey DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
> news:_BGbg.3018$Qg.1475@tornado.southeast.rr.com.. .
>
>>OK, but if you have a hydraulic lifter that pumps oil through the
>>pushrod that doesn't really have anything to do with the face of the
>
> lifter.
>
>>I've heard for a long time that modern oils were tough on old engines,
>>and that Hot Rod article is the first thing I've seen in a major
>>publication where they gave some real evidence. Does it effect Jeep
>>engines? I don't know, I suspect if you are driving around in a ******
>>Jeep with an F head engine you should be concerned. If you are driving
>>around in a 96 Cherokee with a 4.0 I wouldn't worry about it (and I
>>don't, got 300,000 miles out of my first engine using regular old
>
> Pennzoil).
>
>>Jeff DeWitt
>>
>>Mike Romain wrote:
>>
>>>I can't buy that at all.
>>>
>>>Jeep engines last long using the oil off the shelves. I have one with
>>>315K and another with 385K km on them and they are still going strong.
>>>
>>>The Jeep lifters push oil out the top dimple and up the pushrod to lube
>>>the rockers, they are not 'flat topped lifters'.
>>>
>>>Mike
>>>
>>>Jeff DeWitt wrote:
>>>
>>>>I'm no expert on this but but I think a better description would be
>
> flat
>
>>>>FACED lifters, not flat topped. I'm pretty sure that what they are
>>>>referring to is lifters that have a flat face that rides against the
>>>>cam, as opposed to the roller lifters in the pic. that Bill posted.
>>>>
>>>>Jeep lifters 4.0 lifters:
>>>>
>>>>http://www.sierrajeep.com/images/Mot...%20lifters.jpg
>>>>
>>>>Other flat topped lifter:
>>>>
>>>>http://www.holley.com/data/products/...eHydLifter.jpg
>>>>
>>>>Jeff DeWitt
>>>>
>>>>Mike Romain wrote:
>>>>
>>>>>The lifters I have installed and currently have in my 258 aren't flat
>>>>>topped. They have a definite dimple in them that holds the pushrod in
>>>>>place.
>>>>>
>>>>>Mike
>>>>>
>>>>>"L.W.(Bill) ------ III" wrote:
>>>>>
>>>>>
>>>>>> I think we all do, except for Corvette, Porscha, and Harley, that
>>>>>>use rollers:
>>>>>>http://www.timgilles.com/photogaller...lerlifters.jpg
>>>>>> God Bless America, Bill O|||||||O
>>>>>>mailto:-------------------- http://www.----------.com/
>>>>>>
>>>>>>Mike Romain wrote:
>>>>>>
>>>>>>
>>>>>>>Do any Jeep engines use flat top lifters?
>>>>>>>
>>>>>>>Mike
>>>>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>>>>>>>88 Cherokee 235 BFG AT's
>>>>>>>Canadian Off Road Trips Photos: Non members can still view!
>>>>>>>Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>>>>>>>(More Off Road album links at bottom of the view page)
>
>
>
engine--it backfired when GM was discovered to be putting mere Chevrolet
engines in some Olds models and had to pay off on lawsuits.
Some of these oil tales remind me a lot of the 'death to air cooled
engines' tales when lead was taken out of gasoline--the old air cooled
engines were predicted to be suffering massive exhaust valve damage due
to the loss of the lubricating power of lead deposits.
Earle Horton proclaimed:
> Does this discussion have anything to do with flat head versus overhead, or
> the part of the lifter face that contacts the cam? At some point, engine
> manufacturers figured out how to make the lifters rotate during operation.
> This makes the job of the lubricant easier.
>
> Earle
>
> "Jeffrey DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
> news:_BGbg.3018$Qg.1475@tornado.southeast.rr.com.. .
>
>>OK, but if you have a hydraulic lifter that pumps oil through the
>>pushrod that doesn't really have anything to do with the face of the
>
> lifter.
>
>>I've heard for a long time that modern oils were tough on old engines,
>>and that Hot Rod article is the first thing I've seen in a major
>>publication where they gave some real evidence. Does it effect Jeep
>>engines? I don't know, I suspect if you are driving around in a ******
>>Jeep with an F head engine you should be concerned. If you are driving
>>around in a 96 Cherokee with a 4.0 I wouldn't worry about it (and I
>>don't, got 300,000 miles out of my first engine using regular old
>
> Pennzoil).
>
>>Jeff DeWitt
>>
>>Mike Romain wrote:
>>
>>>I can't buy that at all.
>>>
>>>Jeep engines last long using the oil off the shelves. I have one with
>>>315K and another with 385K km on them and they are still going strong.
>>>
>>>The Jeep lifters push oil out the top dimple and up the pushrod to lube
>>>the rockers, they are not 'flat topped lifters'.
>>>
>>>Mike
>>>
>>>Jeff DeWitt wrote:
>>>
>>>>I'm no expert on this but but I think a better description would be
>
> flat
>
>>>>FACED lifters, not flat topped. I'm pretty sure that what they are
>>>>referring to is lifters that have a flat face that rides against the
>>>>cam, as opposed to the roller lifters in the pic. that Bill posted.
>>>>
>>>>Jeep lifters 4.0 lifters:
>>>>
>>>>http://www.sierrajeep.com/images/Mot...%20lifters.jpg
>>>>
>>>>Other flat topped lifter:
>>>>
>>>>http://www.holley.com/data/products/...eHydLifter.jpg
>>>>
>>>>Jeff DeWitt
>>>>
>>>>Mike Romain wrote:
>>>>
>>>>>The lifters I have installed and currently have in my 258 aren't flat
>>>>>topped. They have a definite dimple in them that holds the pushrod in
>>>>>place.
>>>>>
>>>>>Mike
>>>>>
>>>>>"L.W.(Bill) ------ III" wrote:
>>>>>
>>>>>
>>>>>> I think we all do, except for Corvette, Porscha, and Harley, that
>>>>>>use rollers:
>>>>>>http://www.timgilles.com/photogaller...lerlifters.jpg
>>>>>> God Bless America, Bill O|||||||O
>>>>>>mailto:-------------------- http://www.----------.com/
>>>>>>
>>>>>>Mike Romain wrote:
>>>>>>
>>>>>>
>>>>>>>Do any Jeep engines use flat top lifters?
>>>>>>>
>>>>>>>Mike
>>>>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>>>>>>>88 Cherokee 235 BFG AT's
>>>>>>>Canadian Off Road Trips Photos: Non members can still view!
>>>>>>>Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>>>>>>>(More Off Road album links at bottom of the view page)
>
>
>
05-20-2006, 05:52 PM
#102
Guest
Posts: n/a
Re: Old Jeep drivers beware!
First marketing campaign for rotating the lifters was on the Oldsmobile
engine--it backfired when GM was discovered to be putting mere Chevrolet
engines in some Olds models and had to pay off on lawsuits.
Some of these oil tales remind me a lot of the 'death to air cooled
engines' tales when lead was taken out of gasoline--the old air cooled
engines were predicted to be suffering massive exhaust valve damage due
to the loss of the lubricating power of lead deposits.
Earle Horton proclaimed:
> Does this discussion have anything to do with flat head versus overhead, or
> the part of the lifter face that contacts the cam? At some point, engine
> manufacturers figured out how to make the lifters rotate during operation.
> This makes the job of the lubricant easier.
>
> Earle
>
> "Jeffrey DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
> news:_BGbg.3018$Qg.1475@tornado.southeast.rr.com.. .
>
>>OK, but if you have a hydraulic lifter that pumps oil through the
>>pushrod that doesn't really have anything to do with the face of the
>
> lifter.
>
>>I've heard for a long time that modern oils were tough on old engines,
>>and that Hot Rod article is the first thing I've seen in a major
>>publication where they gave some real evidence. Does it effect Jeep
>>engines? I don't know, I suspect if you are driving around in a ******
>>Jeep with an F head engine you should be concerned. If you are driving
>>around in a 96 Cherokee with a 4.0 I wouldn't worry about it (and I
>>don't, got 300,000 miles out of my first engine using regular old
>
> Pennzoil).
>
>>Jeff DeWitt
>>
>>Mike Romain wrote:
>>
>>>I can't buy that at all.
>>>
>>>Jeep engines last long using the oil off the shelves. I have one with
>>>315K and another with 385K km on them and they are still going strong.
>>>
>>>The Jeep lifters push oil out the top dimple and up the pushrod to lube
>>>the rockers, they are not 'flat topped lifters'.
>>>
>>>Mike
>>>
>>>Jeff DeWitt wrote:
>>>
>>>>I'm no expert on this but but I think a better description would be
>
> flat
>
>>>>FACED lifters, not flat topped. I'm pretty sure that what they are
>>>>referring to is lifters that have a flat face that rides against the
>>>>cam, as opposed to the roller lifters in the pic. that Bill posted.
>>>>
>>>>Jeep lifters 4.0 lifters:
>>>>
>>>>http://www.sierrajeep.com/images/Mot...%20lifters.jpg
>>>>
>>>>Other flat topped lifter:
>>>>
>>>>http://www.holley.com/data/products/...eHydLifter.jpg
>>>>
>>>>Jeff DeWitt
>>>>
>>>>Mike Romain wrote:
>>>>
>>>>>The lifters I have installed and currently have in my 258 aren't flat
>>>>>topped. They have a definite dimple in them that holds the pushrod in
>>>>>place.
>>>>>
>>>>>Mike
>>>>>
>>>>>"L.W.(Bill) ------ III" wrote:
>>>>>
>>>>>
>>>>>> I think we all do, except for Corvette, Porscha, and Harley, that
>>>>>>use rollers:
>>>>>>http://www.timgilles.com/photogaller...lerlifters.jpg
>>>>>> God Bless America, Bill O|||||||O
>>>>>>mailto:-------------------- http://www.----------.com/
>>>>>>
>>>>>>Mike Romain wrote:
>>>>>>
>>>>>>
>>>>>>>Do any Jeep engines use flat top lifters?
>>>>>>>
>>>>>>>Mike
>>>>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>>>>>>>88 Cherokee 235 BFG AT's
>>>>>>>Canadian Off Road Trips Photos: Non members can still view!
>>>>>>>Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>>>>>>>(More Off Road album links at bottom of the view page)
>
>
>
engine--it backfired when GM was discovered to be putting mere Chevrolet
engines in some Olds models and had to pay off on lawsuits.
Some of these oil tales remind me a lot of the 'death to air cooled
engines' tales when lead was taken out of gasoline--the old air cooled
engines were predicted to be suffering massive exhaust valve damage due
to the loss of the lubricating power of lead deposits.
Earle Horton proclaimed:
> Does this discussion have anything to do with flat head versus overhead, or
> the part of the lifter face that contacts the cam? At some point, engine
> manufacturers figured out how to make the lifters rotate during operation.
> This makes the job of the lubricant easier.
>
> Earle
>
> "Jeffrey DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
> news:_BGbg.3018$Qg.1475@tornado.southeast.rr.com.. .
>
>>OK, but if you have a hydraulic lifter that pumps oil through the
>>pushrod that doesn't really have anything to do with the face of the
>
> lifter.
>
>>I've heard for a long time that modern oils were tough on old engines,
>>and that Hot Rod article is the first thing I've seen in a major
>>publication where they gave some real evidence. Does it effect Jeep
>>engines? I don't know, I suspect if you are driving around in a ******
>>Jeep with an F head engine you should be concerned. If you are driving
>>around in a 96 Cherokee with a 4.0 I wouldn't worry about it (and I
>>don't, got 300,000 miles out of my first engine using regular old
>
> Pennzoil).
>
>>Jeff DeWitt
>>
>>Mike Romain wrote:
>>
>>>I can't buy that at all.
>>>
>>>Jeep engines last long using the oil off the shelves. I have one with
>>>315K and another with 385K km on them and they are still going strong.
>>>
>>>The Jeep lifters push oil out the top dimple and up the pushrod to lube
>>>the rockers, they are not 'flat topped lifters'.
>>>
>>>Mike
>>>
>>>Jeff DeWitt wrote:
>>>
>>>>I'm no expert on this but but I think a better description would be
>
> flat
>
>>>>FACED lifters, not flat topped. I'm pretty sure that what they are
>>>>referring to is lifters that have a flat face that rides against the
>>>>cam, as opposed to the roller lifters in the pic. that Bill posted.
>>>>
>>>>Jeep lifters 4.0 lifters:
>>>>
>>>>http://www.sierrajeep.com/images/Mot...%20lifters.jpg
>>>>
>>>>Other flat topped lifter:
>>>>
>>>>http://www.holley.com/data/products/...eHydLifter.jpg
>>>>
>>>>Jeff DeWitt
>>>>
>>>>Mike Romain wrote:
>>>>
>>>>>The lifters I have installed and currently have in my 258 aren't flat
>>>>>topped. They have a definite dimple in them that holds the pushrod in
>>>>>place.
>>>>>
>>>>>Mike
>>>>>
>>>>>"L.W.(Bill) ------ III" wrote:
>>>>>
>>>>>
>>>>>> I think we all do, except for Corvette, Porscha, and Harley, that
>>>>>>use rollers:
>>>>>>http://www.timgilles.com/photogaller...lerlifters.jpg
>>>>>> God Bless America, Bill O|||||||O
>>>>>>mailto:-------------------- http://www.----------.com/
>>>>>>
>>>>>>Mike Romain wrote:
>>>>>>
>>>>>>
>>>>>>>Do any Jeep engines use flat top lifters?
>>>>>>>
>>>>>>>Mike
>>>>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>>>>>>>88 Cherokee 235 BFG AT's
>>>>>>>Canadian Off Road Trips Photos: Non members can still view!
>>>>>>>Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>>>>>>>(More Off Road album links at bottom of the view page)
>
>
>
05-20-2006, 05:52 PM
#103
Guest
Posts: n/a
Re: Old Jeep drivers beware!
First marketing campaign for rotating the lifters was on the Oldsmobile
engine--it backfired when GM was discovered to be putting mere Chevrolet
engines in some Olds models and had to pay off on lawsuits.
Some of these oil tales remind me a lot of the 'death to air cooled
engines' tales when lead was taken out of gasoline--the old air cooled
engines were predicted to be suffering massive exhaust valve damage due
to the loss of the lubricating power of lead deposits.
Earle Horton proclaimed:
> Does this discussion have anything to do with flat head versus overhead, or
> the part of the lifter face that contacts the cam? At some point, engine
> manufacturers figured out how to make the lifters rotate during operation.
> This makes the job of the lubricant easier.
>
> Earle
>
> "Jeffrey DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
> news:_BGbg.3018$Qg.1475@tornado.southeast.rr.com.. .
>
>>OK, but if you have a hydraulic lifter that pumps oil through the
>>pushrod that doesn't really have anything to do with the face of the
>
> lifter.
>
>>I've heard for a long time that modern oils were tough on old engines,
>>and that Hot Rod article is the first thing I've seen in a major
>>publication where they gave some real evidence. Does it effect Jeep
>>engines? I don't know, I suspect if you are driving around in a ******
>>Jeep with an F head engine you should be concerned. If you are driving
>>around in a 96 Cherokee with a 4.0 I wouldn't worry about it (and I
>>don't, got 300,000 miles out of my first engine using regular old
>
> Pennzoil).
>
>>Jeff DeWitt
>>
>>Mike Romain wrote:
>>
>>>I can't buy that at all.
>>>
>>>Jeep engines last long using the oil off the shelves. I have one with
>>>315K and another with 385K km on them and they are still going strong.
>>>
>>>The Jeep lifters push oil out the top dimple and up the pushrod to lube
>>>the rockers, they are not 'flat topped lifters'.
>>>
>>>Mike
>>>
>>>Jeff DeWitt wrote:
>>>
>>>>I'm no expert on this but but I think a better description would be
>
> flat
>
>>>>FACED lifters, not flat topped. I'm pretty sure that what they are
>>>>referring to is lifters that have a flat face that rides against the
>>>>cam, as opposed to the roller lifters in the pic. that Bill posted.
>>>>
>>>>Jeep lifters 4.0 lifters:
>>>>
>>>>http://www.sierrajeep.com/images/Mot...%20lifters.jpg
>>>>
>>>>Other flat topped lifter:
>>>>
>>>>http://www.holley.com/data/products/...eHydLifter.jpg
>>>>
>>>>Jeff DeWitt
>>>>
>>>>Mike Romain wrote:
>>>>
>>>>>The lifters I have installed and currently have in my 258 aren't flat
>>>>>topped. They have a definite dimple in them that holds the pushrod in
>>>>>place.
>>>>>
>>>>>Mike
>>>>>
>>>>>"L.W.(Bill) ------ III" wrote:
>>>>>
>>>>>
>>>>>> I think we all do, except for Corvette, Porscha, and Harley, that
>>>>>>use rollers:
>>>>>>http://www.timgilles.com/photogaller...lerlifters.jpg
>>>>>> God Bless America, Bill O|||||||O
>>>>>>mailto:-------------------- http://www.----------.com/
>>>>>>
>>>>>>Mike Romain wrote:
>>>>>>
>>>>>>
>>>>>>>Do any Jeep engines use flat top lifters?
>>>>>>>
>>>>>>>Mike
>>>>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>>>>>>>88 Cherokee 235 BFG AT's
>>>>>>>Canadian Off Road Trips Photos: Non members can still view!
>>>>>>>Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>>>>>>>(More Off Road album links at bottom of the view page)
>
>
>
engine--it backfired when GM was discovered to be putting mere Chevrolet
engines in some Olds models and had to pay off on lawsuits.
Some of these oil tales remind me a lot of the 'death to air cooled
engines' tales when lead was taken out of gasoline--the old air cooled
engines were predicted to be suffering massive exhaust valve damage due
to the loss of the lubricating power of lead deposits.
Earle Horton proclaimed:
> Does this discussion have anything to do with flat head versus overhead, or
> the part of the lifter face that contacts the cam? At some point, engine
> manufacturers figured out how to make the lifters rotate during operation.
> This makes the job of the lubricant easier.
>
> Earle
>
> "Jeffrey DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
> news:_BGbg.3018$Qg.1475@tornado.southeast.rr.com.. .
>
>>OK, but if you have a hydraulic lifter that pumps oil through the
>>pushrod that doesn't really have anything to do with the face of the
>
> lifter.
>
>>I've heard for a long time that modern oils were tough on old engines,
>>and that Hot Rod article is the first thing I've seen in a major
>>publication where they gave some real evidence. Does it effect Jeep
>>engines? I don't know, I suspect if you are driving around in a ******
>>Jeep with an F head engine you should be concerned. If you are driving
>>around in a 96 Cherokee with a 4.0 I wouldn't worry about it (and I
>>don't, got 300,000 miles out of my first engine using regular old
>
> Pennzoil).
>
>>Jeff DeWitt
>>
>>Mike Romain wrote:
>>
>>>I can't buy that at all.
>>>
>>>Jeep engines last long using the oil off the shelves. I have one with
>>>315K and another with 385K km on them and they are still going strong.
>>>
>>>The Jeep lifters push oil out the top dimple and up the pushrod to lube
>>>the rockers, they are not 'flat topped lifters'.
>>>
>>>Mike
>>>
>>>Jeff DeWitt wrote:
>>>
>>>>I'm no expert on this but but I think a better description would be
>
> flat
>
>>>>FACED lifters, not flat topped. I'm pretty sure that what they are
>>>>referring to is lifters that have a flat face that rides against the
>>>>cam, as opposed to the roller lifters in the pic. that Bill posted.
>>>>
>>>>Jeep lifters 4.0 lifters:
>>>>
>>>>http://www.sierrajeep.com/images/Mot...%20lifters.jpg
>>>>
>>>>Other flat topped lifter:
>>>>
>>>>http://www.holley.com/data/products/...eHydLifter.jpg
>>>>
>>>>Jeff DeWitt
>>>>
>>>>Mike Romain wrote:
>>>>
>>>>>The lifters I have installed and currently have in my 258 aren't flat
>>>>>topped. They have a definite dimple in them that holds the pushrod in
>>>>>place.
>>>>>
>>>>>Mike
>>>>>
>>>>>"L.W.(Bill) ------ III" wrote:
>>>>>
>>>>>
>>>>>> I think we all do, except for Corvette, Porscha, and Harley, that
>>>>>>use rollers:
>>>>>>http://www.timgilles.com/photogaller...lerlifters.jpg
>>>>>> God Bless America, Bill O|||||||O
>>>>>>mailto:-------------------- http://www.----------.com/
>>>>>>
>>>>>>Mike Romain wrote:
>>>>>>
>>>>>>
>>>>>>>Do any Jeep engines use flat top lifters?
>>>>>>>
>>>>>>>Mike
>>>>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>>>>>>>88 Cherokee 235 BFG AT's
>>>>>>>Canadian Off Road Trips Photos: Non members can still view!
>>>>>>>Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>>>>>>>(More Off Road album links at bottom of the view page)
>
>
>
05-20-2006, 06:16 PM
#104
Guest
Posts: n/a
Re: Old Jeep drivers beware!
Hi Mike,
The lifter you're referring to is just gutting a hydraulic lifter,
a cheap way to turn old lifter into mechanical or flat tappet as we use
to call them:
http://homepage.ntlworld.com/david.j...top_lifter.jpg
I did this trick to my old Olds:
http://www.----------.com/temp/53olds3.jpg My first attempt at drag
racing, hooked me block, tackle and sinker.
God Bless America, Bill O|||||||O
mailto:--------------------
Mike Romain wrote:
>
> A lifter has a top and a bottom. There is nothing ambiguous about a
> 'flat top lifter'. It sure isn't a 'flat bottomed lifter'.
>
> I can only find one example of a 'flat top lifter' in google and that is
> a special insert in an opel racing engine to do away with lash shims.
>
> So I ask once again, "do any Jeep engines use flat top lifters"?
>
> Mike
The lifter you're referring to is just gutting a hydraulic lifter,
a cheap way to turn old lifter into mechanical or flat tappet as we use
to call them:
http://homepage.ntlworld.com/david.j...top_lifter.jpg
I did this trick to my old Olds:
http://www.----------.com/temp/53olds3.jpg My first attempt at drag
racing, hooked me block, tackle and sinker.
God Bless America, Bill O|||||||O
mailto:--------------------
Mike Romain wrote:
>
> A lifter has a top and a bottom. There is nothing ambiguous about a
> 'flat top lifter'. It sure isn't a 'flat bottomed lifter'.
>
> I can only find one example of a 'flat top lifter' in google and that is
> a special insert in an opel racing engine to do away with lash shims.
>
> So I ask once again, "do any Jeep engines use flat top lifters"?
>
> Mike
05-20-2006, 06:16 PM
#105
Guest
Posts: n/a
Re: Old Jeep drivers beware!
Hi Mike,
The lifter you're referring to is just gutting a hydraulic lifter,
a cheap way to turn old lifter into mechanical or flat tappet as we use
to call them:
http://homepage.ntlworld.com/david.j...top_lifter.jpg
I did this trick to my old Olds:
http://www.----------.com/temp/53olds3.jpg My first attempt at drag
racing, hooked me block, tackle and sinker.
God Bless America, Bill O|||||||O
mailto:--------------------
Mike Romain wrote:
>
> A lifter has a top and a bottom. There is nothing ambiguous about a
> 'flat top lifter'. It sure isn't a 'flat bottomed lifter'.
>
> I can only find one example of a 'flat top lifter' in google and that is
> a special insert in an opel racing engine to do away with lash shims.
>
> So I ask once again, "do any Jeep engines use flat top lifters"?
>
> Mike
The lifter you're referring to is just gutting a hydraulic lifter,
a cheap way to turn old lifter into mechanical or flat tappet as we use
to call them:
http://homepage.ntlworld.com/david.j...top_lifter.jpg
I did this trick to my old Olds:
http://www.----------.com/temp/53olds3.jpg My first attempt at drag
racing, hooked me block, tackle and sinker.
God Bless America, Bill O|||||||O
mailto:--------------------
Mike Romain wrote:
>
> A lifter has a top and a bottom. There is nothing ambiguous about a
> 'flat top lifter'. It sure isn't a 'flat bottomed lifter'.
>
> I can only find one example of a 'flat top lifter' in google and that is
> a special insert in an opel racing engine to do away with lash shims.
>
> So I ask once again, "do any Jeep engines use flat top lifters"?
>
> Mike
05-20-2006, 06:16 PM
#106
Guest
Posts: n/a
Re: Old Jeep drivers beware!
Hi Mike,
The lifter you're referring to is just gutting a hydraulic lifter,
a cheap way to turn old lifter into mechanical or flat tappet as we use
to call them:
http://homepage.ntlworld.com/david.j...top_lifter.jpg
I did this trick to my old Olds:
http://www.----------.com/temp/53olds3.jpg My first attempt at drag
racing, hooked me block, tackle and sinker.
God Bless America, Bill O|||||||O
mailto:--------------------
Mike Romain wrote:
>
> A lifter has a top and a bottom. There is nothing ambiguous about a
> 'flat top lifter'. It sure isn't a 'flat bottomed lifter'.
>
> I can only find one example of a 'flat top lifter' in google and that is
> a special insert in an opel racing engine to do away with lash shims.
>
> So I ask once again, "do any Jeep engines use flat top lifters"?
>
> Mike
The lifter you're referring to is just gutting a hydraulic lifter,
a cheap way to turn old lifter into mechanical or flat tappet as we use
to call them:
http://homepage.ntlworld.com/david.j...top_lifter.jpg
I did this trick to my old Olds:
http://www.----------.com/temp/53olds3.jpg My first attempt at drag
racing, hooked me block, tackle and sinker.
God Bless America, Bill O|||||||O
mailto:--------------------
Mike Romain wrote:
>
> A lifter has a top and a bottom. There is nothing ambiguous about a
> 'flat top lifter'. It sure isn't a 'flat bottomed lifter'.
>
> I can only find one example of a 'flat top lifter' in google and that is
> a special insert in an opel racing engine to do away with lash shims.
>
> So I ask once again, "do any Jeep engines use flat top lifters"?
>
> Mike
05-20-2006, 11:55 PM
#107
Guest
Posts: n/a
Re: Old Jeep drivers beware!
The Oldsmobiles you are talking about sported valve rotators, not lifter
rotators.
Earle
"Lon" <lon.stowell@comcast.net> wrote in message
news:a5WdndDqu7kaEvLZRVn-gw@comcast.com...
> First marketing campaign for rotating the lifters was on the Oldsmobile
> engine--it backfired when GM was discovered to be putting mere Chevrolet
> engines in some Olds models and had to pay off on lawsuits.
>
> Some of these oil tales remind me a lot of the 'death to air cooled
> engines' tales when lead was taken out of gasoline--the old air cooled
> engines were predicted to be suffering massive exhaust valve damage due
> to the loss of the lubricating power of lead deposits.
>
>
> Earle Horton proclaimed:
> > Does this discussion have anything to do with flat head versus overhead,
or
> > the part of the lifter face that contacts the cam? At some point,
engine
> > manufacturers figured out how to make the lifters rotate during
operation.
> > This makes the job of the lubricant easier.
> >
> > Earle
> >
> > "Jeffrey DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
> > news:_BGbg.3018$Qg.1475@tornado.southeast.rr.com.. .
> >
> >>OK, but if you have a hydraulic lifter that pumps oil through the
> >>pushrod that doesn't really have anything to do with the face of the
> >
> > lifter.
> >
> >>I've heard for a long time that modern oils were tough on old engines,
> >>and that Hot Rod article is the first thing I've seen in a major
> >>publication where they gave some real evidence. Does it effect Jeep
> >>engines? I don't know, I suspect if you are driving around in a ******
> >>Jeep with an F head engine you should be concerned. If you are driving
> >>around in a 96 Cherokee with a 4.0 I wouldn't worry about it (and I
> >>don't, got 300,000 miles out of my first engine using regular old
> >
> > Pennzoil).
> >
> >>Jeff DeWitt
> >>
> >>Mike Romain wrote:
> >>
> >>>I can't buy that at all.
> >>>
> >>>Jeep engines last long using the oil off the shelves. I have one with
> >>>315K and another with 385K km on them and they are still going strong.
> >>>
> >>>The Jeep lifters push oil out the top dimple and up the pushrod to lube
> >>>the rockers, they are not 'flat topped lifters'.
> >>>
> >>>Mike
> >>>
> >>>Jeff DeWitt wrote:
> >>>
> >>>>I'm no expert on this but but I think a better description would be
> >
> > flat
> >
> >>>>FACED lifters, not flat topped. I'm pretty sure that what they are
> >>>>referring to is lifters that have a flat face that rides against the
> >>>>cam, as opposed to the roller lifters in the pic. that Bill posted.
> >>>>
> >>>>Jeep lifters 4.0 lifters:
> >>>>
> >>>>http://www.sierrajeep.com/images/Mot...%20lifters.jpg
> >>>>
> >>>>Other flat topped lifter:
> >>>>
> >>>>http://www.holley.com/data/products/...eHydLifter.jpg
> >>>>
> >>>>Jeff DeWitt
> >>>>
> >>>>Mike Romain wrote:
> >>>>
> >>>>>The lifters I have installed and currently have in my 258 aren't flat
> >>>>>topped. They have a definite dimple in them that holds the pushrod
in
> >>>>>place.
> >>>>>
> >>>>>Mike
> >>>>>
> >>>>>"L.W.(Bill) ------ III" wrote:
> >>>>>
> >>>>>
> >>>>>> I think we all do, except for Corvette, Porscha, and Harley,
that
> >>>>>>use rollers:
> >>>>>>http://www.timgilles.com/photogaller...lerlifters.jpg
> >>>>>> God Bless America, Bill O|||||||O
> >>>>>>mailto:-------------------- http://www.----------.com/
> >>>>>>
> >>>>>>Mike Romain wrote:
> >>>>>>
> >>>>>>
> >>>>>>>Do any Jeep engines use flat top lifters?
> >>>>>>>
> >>>>>>>Mike
> >>>>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>>>88 Cherokee 235 BFG AT's
> >>>>>>>Canadian Off Road Trips Photos: Non members can still view!
> >>>>>>>Jan/06
http://www.imagestation.com/album/pi...?id=2115147590
> >>>>>>>(More Off Road album links at bottom of the view page)
> >
> >
> >
*** Posted via a free Usenet account from http://www.teranews.com ***
rotators.
Earle
"Lon" <lon.stowell@comcast.net> wrote in message
news:a5WdndDqu7kaEvLZRVn-gw@comcast.com...
> First marketing campaign for rotating the lifters was on the Oldsmobile
> engine--it backfired when GM was discovered to be putting mere Chevrolet
> engines in some Olds models and had to pay off on lawsuits.
>
> Some of these oil tales remind me a lot of the 'death to air cooled
> engines' tales when lead was taken out of gasoline--the old air cooled
> engines were predicted to be suffering massive exhaust valve damage due
> to the loss of the lubricating power of lead deposits.
>
>
> Earle Horton proclaimed:
> > Does this discussion have anything to do with flat head versus overhead,
or
> > the part of the lifter face that contacts the cam? At some point,
engine
> > manufacturers figured out how to make the lifters rotate during
operation.
> > This makes the job of the lubricant easier.
> >
> > Earle
> >
> > "Jeffrey DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
> > news:_BGbg.3018$Qg.1475@tornado.southeast.rr.com.. .
> >
> >>OK, but if you have a hydraulic lifter that pumps oil through the
> >>pushrod that doesn't really have anything to do with the face of the
> >
> > lifter.
> >
> >>I've heard for a long time that modern oils were tough on old engines,
> >>and that Hot Rod article is the first thing I've seen in a major
> >>publication where they gave some real evidence. Does it effect Jeep
> >>engines? I don't know, I suspect if you are driving around in a ******
> >>Jeep with an F head engine you should be concerned. If you are driving
> >>around in a 96 Cherokee with a 4.0 I wouldn't worry about it (and I
> >>don't, got 300,000 miles out of my first engine using regular old
> >
> > Pennzoil).
> >
> >>Jeff DeWitt
> >>
> >>Mike Romain wrote:
> >>
> >>>I can't buy that at all.
> >>>
> >>>Jeep engines last long using the oil off the shelves. I have one with
> >>>315K and another with 385K km on them and they are still going strong.
> >>>
> >>>The Jeep lifters push oil out the top dimple and up the pushrod to lube
> >>>the rockers, they are not 'flat topped lifters'.
> >>>
> >>>Mike
> >>>
> >>>Jeff DeWitt wrote:
> >>>
> >>>>I'm no expert on this but but I think a better description would be
> >
> > flat
> >
> >>>>FACED lifters, not flat topped. I'm pretty sure that what they are
> >>>>referring to is lifters that have a flat face that rides against the
> >>>>cam, as opposed to the roller lifters in the pic. that Bill posted.
> >>>>
> >>>>Jeep lifters 4.0 lifters:
> >>>>
> >>>>http://www.sierrajeep.com/images/Mot...%20lifters.jpg
> >>>>
> >>>>Other flat topped lifter:
> >>>>
> >>>>http://www.holley.com/data/products/...eHydLifter.jpg
> >>>>
> >>>>Jeff DeWitt
> >>>>
> >>>>Mike Romain wrote:
> >>>>
> >>>>>The lifters I have installed and currently have in my 258 aren't flat
> >>>>>topped. They have a definite dimple in them that holds the pushrod
in
> >>>>>place.
> >>>>>
> >>>>>Mike
> >>>>>
> >>>>>"L.W.(Bill) ------ III" wrote:
> >>>>>
> >>>>>
> >>>>>> I think we all do, except for Corvette, Porscha, and Harley,
that
> >>>>>>use rollers:
> >>>>>>http://www.timgilles.com/photogaller...lerlifters.jpg
> >>>>>> God Bless America, Bill O|||||||O
> >>>>>>mailto:-------------------- http://www.----------.com/
> >>>>>>
> >>>>>>Mike Romain wrote:
> >>>>>>
> >>>>>>
> >>>>>>>Do any Jeep engines use flat top lifters?
> >>>>>>>
> >>>>>>>Mike
> >>>>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>>>88 Cherokee 235 BFG AT's
> >>>>>>>Canadian Off Road Trips Photos: Non members can still view!
> >>>>>>>Jan/06
http://www.imagestation.com/album/pi...?id=2115147590
> >>>>>>>(More Off Road album links at bottom of the view page)
> >
> >
> >
*** Posted via a free Usenet account from http://www.teranews.com ***
05-20-2006, 11:55 PM
#108
Guest
Posts: n/a
Re: Old Jeep drivers beware!
The Oldsmobiles you are talking about sported valve rotators, not lifter
rotators.
Earle
"Lon" <lon.stowell@comcast.net> wrote in message
news:a5WdndDqu7kaEvLZRVn-gw@comcast.com...
> First marketing campaign for rotating the lifters was on the Oldsmobile
> engine--it backfired when GM was discovered to be putting mere Chevrolet
> engines in some Olds models and had to pay off on lawsuits.
>
> Some of these oil tales remind me a lot of the 'death to air cooled
> engines' tales when lead was taken out of gasoline--the old air cooled
> engines were predicted to be suffering massive exhaust valve damage due
> to the loss of the lubricating power of lead deposits.
>
>
> Earle Horton proclaimed:
> > Does this discussion have anything to do with flat head versus overhead,
or
> > the part of the lifter face that contacts the cam? At some point,
engine
> > manufacturers figured out how to make the lifters rotate during
operation.
> > This makes the job of the lubricant easier.
> >
> > Earle
> >
> > "Jeffrey DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
> > news:_BGbg.3018$Qg.1475@tornado.southeast.rr.com.. .
> >
> >>OK, but if you have a hydraulic lifter that pumps oil through the
> >>pushrod that doesn't really have anything to do with the face of the
> >
> > lifter.
> >
> >>I've heard for a long time that modern oils were tough on old engines,
> >>and that Hot Rod article is the first thing I've seen in a major
> >>publication where they gave some real evidence. Does it effect Jeep
> >>engines? I don't know, I suspect if you are driving around in a ******
> >>Jeep with an F head engine you should be concerned. If you are driving
> >>around in a 96 Cherokee with a 4.0 I wouldn't worry about it (and I
> >>don't, got 300,000 miles out of my first engine using regular old
> >
> > Pennzoil).
> >
> >>Jeff DeWitt
> >>
> >>Mike Romain wrote:
> >>
> >>>I can't buy that at all.
> >>>
> >>>Jeep engines last long using the oil off the shelves. I have one with
> >>>315K and another with 385K km on them and they are still going strong.
> >>>
> >>>The Jeep lifters push oil out the top dimple and up the pushrod to lube
> >>>the rockers, they are not 'flat topped lifters'.
> >>>
> >>>Mike
> >>>
> >>>Jeff DeWitt wrote:
> >>>
> >>>>I'm no expert on this but but I think a better description would be
> >
> > flat
> >
> >>>>FACED lifters, not flat topped. I'm pretty sure that what they are
> >>>>referring to is lifters that have a flat face that rides against the
> >>>>cam, as opposed to the roller lifters in the pic. that Bill posted.
> >>>>
> >>>>Jeep lifters 4.0 lifters:
> >>>>
> >>>>http://www.sierrajeep.com/images/Mot...%20lifters.jpg
> >>>>
> >>>>Other flat topped lifter:
> >>>>
> >>>>http://www.holley.com/data/products/...eHydLifter.jpg
> >>>>
> >>>>Jeff DeWitt
> >>>>
> >>>>Mike Romain wrote:
> >>>>
> >>>>>The lifters I have installed and currently have in my 258 aren't flat
> >>>>>topped. They have a definite dimple in them that holds the pushrod
in
> >>>>>place.
> >>>>>
> >>>>>Mike
> >>>>>
> >>>>>"L.W.(Bill) ------ III" wrote:
> >>>>>
> >>>>>
> >>>>>> I think we all do, except for Corvette, Porscha, and Harley,
that
> >>>>>>use rollers:
> >>>>>>http://www.timgilles.com/photogaller...lerlifters.jpg
> >>>>>> God Bless America, Bill O|||||||O
> >>>>>>mailto:-------------------- http://www.----------.com/
> >>>>>>
> >>>>>>Mike Romain wrote:
> >>>>>>
> >>>>>>
> >>>>>>>Do any Jeep engines use flat top lifters?
> >>>>>>>
> >>>>>>>Mike
> >>>>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>>>88 Cherokee 235 BFG AT's
> >>>>>>>Canadian Off Road Trips Photos: Non members can still view!
> >>>>>>>Jan/06
http://www.imagestation.com/album/pi...?id=2115147590
> >>>>>>>(More Off Road album links at bottom of the view page)
> >
> >
> >
*** Posted via a free Usenet account from http://www.teranews.com ***
rotators.
Earle
"Lon" <lon.stowell@comcast.net> wrote in message
news:a5WdndDqu7kaEvLZRVn-gw@comcast.com...
> First marketing campaign for rotating the lifters was on the Oldsmobile
> engine--it backfired when GM was discovered to be putting mere Chevrolet
> engines in some Olds models and had to pay off on lawsuits.
>
> Some of these oil tales remind me a lot of the 'death to air cooled
> engines' tales when lead was taken out of gasoline--the old air cooled
> engines were predicted to be suffering massive exhaust valve damage due
> to the loss of the lubricating power of lead deposits.
>
>
> Earle Horton proclaimed:
> > Does this discussion have anything to do with flat head versus overhead,
or
> > the part of the lifter face that contacts the cam? At some point,
engine
> > manufacturers figured out how to make the lifters rotate during
operation.
> > This makes the job of the lubricant easier.
> >
> > Earle
> >
> > "Jeffrey DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
> > news:_BGbg.3018$Qg.1475@tornado.southeast.rr.com.. .
> >
> >>OK, but if you have a hydraulic lifter that pumps oil through the
> >>pushrod that doesn't really have anything to do with the face of the
> >
> > lifter.
> >
> >>I've heard for a long time that modern oils were tough on old engines,
> >>and that Hot Rod article is the first thing I've seen in a major
> >>publication where they gave some real evidence. Does it effect Jeep
> >>engines? I don't know, I suspect if you are driving around in a ******
> >>Jeep with an F head engine you should be concerned. If you are driving
> >>around in a 96 Cherokee with a 4.0 I wouldn't worry about it (and I
> >>don't, got 300,000 miles out of my first engine using regular old
> >
> > Pennzoil).
> >
> >>Jeff DeWitt
> >>
> >>Mike Romain wrote:
> >>
> >>>I can't buy that at all.
> >>>
> >>>Jeep engines last long using the oil off the shelves. I have one with
> >>>315K and another with 385K km on them and they are still going strong.
> >>>
> >>>The Jeep lifters push oil out the top dimple and up the pushrod to lube
> >>>the rockers, they are not 'flat topped lifters'.
> >>>
> >>>Mike
> >>>
> >>>Jeff DeWitt wrote:
> >>>
> >>>>I'm no expert on this but but I think a better description would be
> >
> > flat
> >
> >>>>FACED lifters, not flat topped. I'm pretty sure that what they are
> >>>>referring to is lifters that have a flat face that rides against the
> >>>>cam, as opposed to the roller lifters in the pic. that Bill posted.
> >>>>
> >>>>Jeep lifters 4.0 lifters:
> >>>>
> >>>>http://www.sierrajeep.com/images/Mot...%20lifters.jpg
> >>>>
> >>>>Other flat topped lifter:
> >>>>
> >>>>http://www.holley.com/data/products/...eHydLifter.jpg
> >>>>
> >>>>Jeff DeWitt
> >>>>
> >>>>Mike Romain wrote:
> >>>>
> >>>>>The lifters I have installed and currently have in my 258 aren't flat
> >>>>>topped. They have a definite dimple in them that holds the pushrod
in
> >>>>>place.
> >>>>>
> >>>>>Mike
> >>>>>
> >>>>>"L.W.(Bill) ------ III" wrote:
> >>>>>
> >>>>>
> >>>>>> I think we all do, except for Corvette, Porscha, and Harley,
that
> >>>>>>use rollers:
> >>>>>>http://www.timgilles.com/photogaller...lerlifters.jpg
> >>>>>> God Bless America, Bill O|||||||O
> >>>>>>mailto:-------------------- http://www.----------.com/
> >>>>>>
> >>>>>>Mike Romain wrote:
> >>>>>>
> >>>>>>
> >>>>>>>Do any Jeep engines use flat top lifters?
> >>>>>>>
> >>>>>>>Mike
> >>>>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>>>88 Cherokee 235 BFG AT's
> >>>>>>>Canadian Off Road Trips Photos: Non members can still view!
> >>>>>>>Jan/06
http://www.imagestation.com/album/pi...?id=2115147590
> >>>>>>>(More Off Road album links at bottom of the view page)
> >
> >
> >
*** Posted via a free Usenet account from http://www.teranews.com ***
05-20-2006, 11:55 PM
#109
Guest
Posts: n/a
Re: Old Jeep drivers beware!
The Oldsmobiles you are talking about sported valve rotators, not lifter
rotators.
Earle
"Lon" <lon.stowell@comcast.net> wrote in message
news:a5WdndDqu7kaEvLZRVn-gw@comcast.com...
> First marketing campaign for rotating the lifters was on the Oldsmobile
> engine--it backfired when GM was discovered to be putting mere Chevrolet
> engines in some Olds models and had to pay off on lawsuits.
>
> Some of these oil tales remind me a lot of the 'death to air cooled
> engines' tales when lead was taken out of gasoline--the old air cooled
> engines were predicted to be suffering massive exhaust valve damage due
> to the loss of the lubricating power of lead deposits.
>
>
> Earle Horton proclaimed:
> > Does this discussion have anything to do with flat head versus overhead,
or
> > the part of the lifter face that contacts the cam? At some point,
engine
> > manufacturers figured out how to make the lifters rotate during
operation.
> > This makes the job of the lubricant easier.
> >
> > Earle
> >
> > "Jeffrey DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
> > news:_BGbg.3018$Qg.1475@tornado.southeast.rr.com.. .
> >
> >>OK, but if you have a hydraulic lifter that pumps oil through the
> >>pushrod that doesn't really have anything to do with the face of the
> >
> > lifter.
> >
> >>I've heard for a long time that modern oils were tough on old engines,
> >>and that Hot Rod article is the first thing I've seen in a major
> >>publication where they gave some real evidence. Does it effect Jeep
> >>engines? I don't know, I suspect if you are driving around in a ******
> >>Jeep with an F head engine you should be concerned. If you are driving
> >>around in a 96 Cherokee with a 4.0 I wouldn't worry about it (and I
> >>don't, got 300,000 miles out of my first engine using regular old
> >
> > Pennzoil).
> >
> >>Jeff DeWitt
> >>
> >>Mike Romain wrote:
> >>
> >>>I can't buy that at all.
> >>>
> >>>Jeep engines last long using the oil off the shelves. I have one with
> >>>315K and another with 385K km on them and they are still going strong.
> >>>
> >>>The Jeep lifters push oil out the top dimple and up the pushrod to lube
> >>>the rockers, they are not 'flat topped lifters'.
> >>>
> >>>Mike
> >>>
> >>>Jeff DeWitt wrote:
> >>>
> >>>>I'm no expert on this but but I think a better description would be
> >
> > flat
> >
> >>>>FACED lifters, not flat topped. I'm pretty sure that what they are
> >>>>referring to is lifters that have a flat face that rides against the
> >>>>cam, as opposed to the roller lifters in the pic. that Bill posted.
> >>>>
> >>>>Jeep lifters 4.0 lifters:
> >>>>
> >>>>http://www.sierrajeep.com/images/Mot...%20lifters.jpg
> >>>>
> >>>>Other flat topped lifter:
> >>>>
> >>>>http://www.holley.com/data/products/...eHydLifter.jpg
> >>>>
> >>>>Jeff DeWitt
> >>>>
> >>>>Mike Romain wrote:
> >>>>
> >>>>>The lifters I have installed and currently have in my 258 aren't flat
> >>>>>topped. They have a definite dimple in them that holds the pushrod
in
> >>>>>place.
> >>>>>
> >>>>>Mike
> >>>>>
> >>>>>"L.W.(Bill) ------ III" wrote:
> >>>>>
> >>>>>
> >>>>>> I think we all do, except for Corvette, Porscha, and Harley,
that
> >>>>>>use rollers:
> >>>>>>http://www.timgilles.com/photogaller...lerlifters.jpg
> >>>>>> God Bless America, Bill O|||||||O
> >>>>>>mailto:-------------------- http://www.----------.com/
> >>>>>>
> >>>>>>Mike Romain wrote:
> >>>>>>
> >>>>>>
> >>>>>>>Do any Jeep engines use flat top lifters?
> >>>>>>>
> >>>>>>>Mike
> >>>>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>>>88 Cherokee 235 BFG AT's
> >>>>>>>Canadian Off Road Trips Photos: Non members can still view!
> >>>>>>>Jan/06
http://www.imagestation.com/album/pi...?id=2115147590
> >>>>>>>(More Off Road album links at bottom of the view page)
> >
> >
> >
*** Posted via a free Usenet account from http://www.teranews.com ***
rotators.
Earle
"Lon" <lon.stowell@comcast.net> wrote in message
news:a5WdndDqu7kaEvLZRVn-gw@comcast.com...
> First marketing campaign for rotating the lifters was on the Oldsmobile
> engine--it backfired when GM was discovered to be putting mere Chevrolet
> engines in some Olds models and had to pay off on lawsuits.
>
> Some of these oil tales remind me a lot of the 'death to air cooled
> engines' tales when lead was taken out of gasoline--the old air cooled
> engines were predicted to be suffering massive exhaust valve damage due
> to the loss of the lubricating power of lead deposits.
>
>
> Earle Horton proclaimed:
> > Does this discussion have anything to do with flat head versus overhead,
or
> > the part of the lifter face that contacts the cam? At some point,
engine
> > manufacturers figured out how to make the lifters rotate during
operation.
> > This makes the job of the lubricant easier.
> >
> > Earle
> >
> > "Jeffrey DeWitt" <JeffDeWitt@nc.rr.com> wrote in message
> > news:_BGbg.3018$Qg.1475@tornado.southeast.rr.com.. .
> >
> >>OK, but if you have a hydraulic lifter that pumps oil through the
> >>pushrod that doesn't really have anything to do with the face of the
> >
> > lifter.
> >
> >>I've heard for a long time that modern oils were tough on old engines,
> >>and that Hot Rod article is the first thing I've seen in a major
> >>publication where they gave some real evidence. Does it effect Jeep
> >>engines? I don't know, I suspect if you are driving around in a ******
> >>Jeep with an F head engine you should be concerned. If you are driving
> >>around in a 96 Cherokee with a 4.0 I wouldn't worry about it (and I
> >>don't, got 300,000 miles out of my first engine using regular old
> >
> > Pennzoil).
> >
> >>Jeff DeWitt
> >>
> >>Mike Romain wrote:
> >>
> >>>I can't buy that at all.
> >>>
> >>>Jeep engines last long using the oil off the shelves. I have one with
> >>>315K and another with 385K km on them and they are still going strong.
> >>>
> >>>The Jeep lifters push oil out the top dimple and up the pushrod to lube
> >>>the rockers, they are not 'flat topped lifters'.
> >>>
> >>>Mike
> >>>
> >>>Jeff DeWitt wrote:
> >>>
> >>>>I'm no expert on this but but I think a better description would be
> >
> > flat
> >
> >>>>FACED lifters, not flat topped. I'm pretty sure that what they are
> >>>>referring to is lifters that have a flat face that rides against the
> >>>>cam, as opposed to the roller lifters in the pic. that Bill posted.
> >>>>
> >>>>Jeep lifters 4.0 lifters:
> >>>>
> >>>>http://www.sierrajeep.com/images/Mot...%20lifters.jpg
> >>>>
> >>>>Other flat topped lifter:
> >>>>
> >>>>http://www.holley.com/data/products/...eHydLifter.jpg
> >>>>
> >>>>Jeff DeWitt
> >>>>
> >>>>Mike Romain wrote:
> >>>>
> >>>>>The lifters I have installed and currently have in my 258 aren't flat
> >>>>>topped. They have a definite dimple in them that holds the pushrod
in
> >>>>>place.
> >>>>>
> >>>>>Mike
> >>>>>
> >>>>>"L.W.(Bill) ------ III" wrote:
> >>>>>
> >>>>>
> >>>>>> I think we all do, except for Corvette, Porscha, and Harley,
that
> >>>>>>use rollers:
> >>>>>>http://www.timgilles.com/photogaller...lerlifters.jpg
> >>>>>> God Bless America, Bill O|||||||O
> >>>>>>mailto:-------------------- http://www.----------.com/
> >>>>>>
> >>>>>>Mike Romain wrote:
> >>>>>>
> >>>>>>
> >>>>>>>Do any Jeep engines use flat top lifters?
> >>>>>>>
> >>>>>>>Mike
> >>>>>>>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>>>>>>88 Cherokee 235 BFG AT's
> >>>>>>>Canadian Off Road Trips Photos: Non members can still view!
> >>>>>>>Jan/06
http://www.imagestation.com/album/pi...?id=2115147590
> >>>>>>>(More Off Road album links at bottom of the view page)
> >
> >
> >
*** Posted via a free Usenet account from http://www.teranews.com ***
05-20-2006, 11:55 PM
#110
Guest
Posts: n/a
Re: Old Jeep drivers beware!
If that insert has a flat top, like in the picture, how does the end of the
push rod stay centered on top of it?
Earle
"L.W.(Bill) ------ III" <----------@***.net> wrote in message
news:446F9542.EC64BB60@***.net...
> Hi Mike,
> The lifter you're referring to is just gutting a hydraulic lifter,
> a cheap way to turn old lifter into mechanical or flat tappet as we use
> to call them:
> http://homepage.ntlworld.com/david.j...top_lifter.jpg
> I did this trick to my old Olds:
> http://www.----------.com/temp/53olds3.jpg My first attempt at drag
> racing, hooked me block, tackle and sinker.
> God Bless America, Bill O|||||||O
> mailto:--------------------
>
> Mike Romain wrote:
> >
> > A lifter has a top and a bottom. There is nothing ambiguous about a
> > 'flat top lifter'. It sure isn't a 'flat bottomed lifter'.
> >
> > I can only find one example of a 'flat top lifter' in google and that is
> > a special insert in an opel racing engine to do away with lash shims.
> >
> > So I ask once again, "do any Jeep engines use flat top lifters"?
> >
> > Mike
*** Posted via a free Usenet account from http://www.teranews.com ***
push rod stay centered on top of it?
Earle
"L.W.(Bill) ------ III" <----------@***.net> wrote in message
news:446F9542.EC64BB60@***.net...
> Hi Mike,
> The lifter you're referring to is just gutting a hydraulic lifter,
> a cheap way to turn old lifter into mechanical or flat tappet as we use
> to call them:
> http://homepage.ntlworld.com/david.j...top_lifter.jpg
> I did this trick to my old Olds:
> http://www.----------.com/temp/53olds3.jpg My first attempt at drag
> racing, hooked me block, tackle and sinker.
> God Bless America, Bill O|||||||O
> mailto:--------------------
>
> Mike Romain wrote:
> >
> > A lifter has a top and a bottom. There is nothing ambiguous about a
> > 'flat top lifter'. It sure isn't a 'flat bottomed lifter'.
> >
> > I can only find one example of a 'flat top lifter' in google and that is
> > a special insert in an opel racing engine to do away with lash shims.
> >
> > So I ask once again, "do any Jeep engines use flat top lifters"?
> >
> > Mike
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