I was amazed when I changed one and still had almost 17 deg of slop.
That is with new steel wheels and chain.

They can start rattling on the cast guide when they get too stretched
though. The marks on the inside cover will tell you, if the cast guide
isn't worn, the chain is fine.

A cheap auto stethoscope that most parts stores sell is great for
pegging noise.

I once told a new acquaintance I met from this group when I met him that
I heard bearing knocks at #1, #3, #4, #6 and maybe another up front on
his recently 'rebuilt' 258.

I laughed and said ok, this stethoscope is just too much, I hear too
much, LOL!

Well, a couple weeks later he spun a bearing and the 'rebuild' had mixed
up bearing caps so all the knocks I heard were valid.....

I helped rebuild that engine between Xmas and New Years at -20C in an
unheated garage.... He only lived around the corner, literally.

Mike

Pi-Eyed Piper wrote:
>
> wow, I thought that seemed like a lot...I'm at a loss
>
> it's not exhaust, wrong side.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:426579DB.5E1D1A29@sympatico.ca...
> > Even new, the chain has an easy 15, but 20 is pushing it.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Pi-Eyed Piper wrote:
> >>
> >> not the header, checked lastnight....theres about 20 degrees of turn in
> >> the
> >> timing chain....gonna give that a try.
> >>
> >> "RoyJ" <spamless@microsoft.net> wrote in message
> >> news:sj99e.8870$An2.2619@newsread2.news.pas.earthl ink.net...
> >> > You need to retorque them 3 or 4 times. As Bill said, if they start to
> >> > leak, you can burn though and have to start over with a new gasket.
> >> >
> >> > Pi-Eyed Piper wrote:
> >> >
> >> >> could be...I retourqued them a week later but who knows....If thats
> >> >> all
> >> >> it is, awesome.
> >> >>
> >> >>
> >> >> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
> >> >> news:42643FB3.19F6E2DD@***.net...
> >> >>
> >> >>> I'll put my money on Doug's suggestion, you forgot to retorque the
> >> >>>header bolts after hot and again each week until they no long snug up.
> >> >>>You may need a new gasket now.
> >> >>> Bearing noise we will change pitch with RPM.
> >> >>> God Bless America, ßill O|||||||O
> >> >>>mailto:-------------------- http://www.----------.com/
> >> >>>
> >> >>>Pi-Eyed Piper wrote:
> >> >>>
> >> >>>>I'll try that....I just dont want it to be engine noise, I wanted
> >> >>>>another
> >> >>>>year before I heard any of that...
> >> >>
> >> >>

 

I hope the cover is scored...I dont want anyone to tell me im gonna be
rebuilding this engine. one more year, just ONE more.




"Mike Romain" <romainm@sympatico.ca> wrote in message
news:42658DEB.5BC50649@sympatico.ca...
>I was amazed when I changed one and still had almost 17 deg of slop.
> That is with new steel wheels and chain.
>
> They can start rattling on the cast guide when they get too stretched
> though. The marks on the inside cover will tell you, if the cast guide
> isn't worn, the chain is fine.
>
> A cheap auto stethoscope that most parts stores sell is great for
> pegging noise.
>
> I once told a new acquaintance I met from this group when I met him that
> I heard bearing knocks at #1, #3, #4, #6 and maybe another up front on
> his recently 'rebuilt' 258.
>
> I laughed and said ok, this stethoscope is just too much, I hear too
> much, LOL!
>
> Well, a couple weeks later he spun a bearing and the 'rebuild' had mixed
> up bearing caps so all the knocks I heard were valid.....
>
> I helped rebuild that engine between Xmas and New Years at -20C in an
> unheated garage.... He only lived around the corner, literally.
>
> Mike
>
> Pi-Eyed Piper wrote:
>>
>> wow, I thought that seemed like a lot...I'm at a loss
>>
>> it's not exhaust, wrong side.
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:426579DB.5E1D1A29@sympatico.ca...
>> > Even new, the chain has an easy 15, but 20 is pushing it.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>> >
>> > Pi-Eyed Piper wrote:
>> >>
>> >> not the header, checked lastnight....theres about 20 degrees of turn
>> >> in
>> >> the
>> >> timing chain....gonna give that a try.
>> >>
>> >> "RoyJ" <spamless@microsoft.net> wrote in message
>> >> news:sj99e.8870$An2.2619@newsread2.news.pas.earthl ink.net...
>> >> > You need to retorque them 3 or 4 times. As Bill said, if they start
>> >> > to
>> >> > leak, you can burn though and have to start over with a new gasket.
>> >> >
>> >> > Pi-Eyed Piper wrote:
>> >> >
>> >> >> could be...I retourqued them a week later but who knows....If thats
>> >> >> all
>> >> >> it is, awesome.
>> >> >>
>> >> >>
>> >> >> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
>> >> >> news:42643FB3.19F6E2DD@***.net...
>> >> >>
>> >> >>> I'll put my money on Doug's suggestion, you forgot to retorque
>> >> >>> the
>> >> >>>header bolts after hot and again each week until they no long snug
>> >> >>>up.
>> >> >>>You may need a new gasket now.
>> >> >>> Bearing noise we will change pitch with RPM.
>> >> >>> God Bless America, ßill O|||||||O
>> >> >>>mailto:-------------------- http://www.----------.com/
>> >> >>>
>> >> >>>Pi-Eyed Piper wrote:
>> >> >>>
>> >> >>>>I'll try that....I just dont want it to be engine noise, I wanted
>> >> >>>>another
>> >> >>>>year before I heard any of that...
>> >> >>
>> >> >>

 

I hope the cover is scored...I dont want anyone to tell me im gonna be
rebuilding this engine. one more year, just ONE more.




"Mike Romain" <romainm@sympatico.ca> wrote in message
news:42658DEB.5BC50649@sympatico.ca...
>I was amazed when I changed one and still had almost 17 deg of slop.
> That is with new steel wheels and chain.
>
> They can start rattling on the cast guide when they get too stretched
> though. The marks on the inside cover will tell you, if the cast guide
> isn't worn, the chain is fine.
>
> A cheap auto stethoscope that most parts stores sell is great for
> pegging noise.
>
> I once told a new acquaintance I met from this group when I met him that
> I heard bearing knocks at #1, #3, #4, #6 and maybe another up front on
> his recently 'rebuilt' 258.
>
> I laughed and said ok, this stethoscope is just too much, I hear too
> much, LOL!
>
> Well, a couple weeks later he spun a bearing and the 'rebuild' had mixed
> up bearing caps so all the knocks I heard were valid.....
>
> I helped rebuild that engine between Xmas and New Years at -20C in an
> unheated garage.... He only lived around the corner, literally.
>
> Mike
>
> Pi-Eyed Piper wrote:
>>
>> wow, I thought that seemed like a lot...I'm at a loss
>>
>> it's not exhaust, wrong side.
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:426579DB.5E1D1A29@sympatico.ca...
>> > Even new, the chain has an easy 15, but 20 is pushing it.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>> >
>> > Pi-Eyed Piper wrote:
>> >>
>> >> not the header, checked lastnight....theres about 20 degrees of turn
>> >> in
>> >> the
>> >> timing chain....gonna give that a try.
>> >>
>> >> "RoyJ" <spamless@microsoft.net> wrote in message
>> >> news:sj99e.8870$An2.2619@newsread2.news.pas.earthl ink.net...
>> >> > You need to retorque them 3 or 4 times. As Bill said, if they start
>> >> > to
>> >> > leak, you can burn though and have to start over with a new gasket.
>> >> >
>> >> > Pi-Eyed Piper wrote:
>> >> >
>> >> >> could be...I retourqued them a week later but who knows....If thats
>> >> >> all
>> >> >> it is, awesome.
>> >> >>
>> >> >>
>> >> >> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
>> >> >> news:42643FB3.19F6E2DD@***.net...
>> >> >>
>> >> >>> I'll put my money on Doug's suggestion, you forgot to retorque
>> >> >>> the
>> >> >>>header bolts after hot and again each week until they no long snug
>> >> >>>up.
>> >> >>>You may need a new gasket now.
>> >> >>> Bearing noise we will change pitch with RPM.
>> >> >>> God Bless America, ßill O|||||||O
>> >> >>>mailto:-------------------- http://www.----------.com/
>> >> >>>
>> >> >>>Pi-Eyed Piper wrote:
>> >> >>>
>> >> >>>>I'll try that....I just dont want it to be engine noise, I wanted
>> >> >>>>another
>> >> >>>>year before I heard any of that...
>> >> >>
>> >> >>

 

I hope the cover is scored...I dont want anyone to tell me im gonna be
rebuilding this engine. one more year, just ONE more.




"Mike Romain" <romainm@sympatico.ca> wrote in message
news:42658DEB.5BC50649@sympatico.ca...
>I was amazed when I changed one and still had almost 17 deg of slop.
> That is with new steel wheels and chain.
>
> They can start rattling on the cast guide when they get too stretched
> though. The marks on the inside cover will tell you, if the cast guide
> isn't worn, the chain is fine.
>
> A cheap auto stethoscope that most parts stores sell is great for
> pegging noise.
>
> I once told a new acquaintance I met from this group when I met him that
> I heard bearing knocks at #1, #3, #4, #6 and maybe another up front on
> his recently 'rebuilt' 258.
>
> I laughed and said ok, this stethoscope is just too much, I hear too
> much, LOL!
>
> Well, a couple weeks later he spun a bearing and the 'rebuild' had mixed
> up bearing caps so all the knocks I heard were valid.....
>
> I helped rebuild that engine between Xmas and New Years at -20C in an
> unheated garage.... He only lived around the corner, literally.
>
> Mike
>
> Pi-Eyed Piper wrote:
>>
>> wow, I thought that seemed like a lot...I'm at a loss
>>
>> it's not exhaust, wrong side.
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:426579DB.5E1D1A29@sympatico.ca...
>> > Even new, the chain has an easy 15, but 20 is pushing it.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>> >
>> > Pi-Eyed Piper wrote:
>> >>
>> >> not the header, checked lastnight....theres about 20 degrees of turn
>> >> in
>> >> the
>> >> timing chain....gonna give that a try.
>> >>
>> >> "RoyJ" <spamless@microsoft.net> wrote in message
>> >> news:sj99e.8870$An2.2619@newsread2.news.pas.earthl ink.net...
>> >> > You need to retorque them 3 or 4 times. As Bill said, if they start
>> >> > to
>> >> > leak, you can burn though and have to start over with a new gasket.
>> >> >
>> >> > Pi-Eyed Piper wrote:
>> >> >
>> >> >> could be...I retourqued them a week later but who knows....If thats
>> >> >> all
>> >> >> it is, awesome.
>> >> >>
>> >> >>
>> >> >> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
>> >> >> news:42643FB3.19F6E2DD@***.net...
>> >> >>
>> >> >>> I'll put my money on Doug's suggestion, you forgot to retorque
>> >> >>> the
>> >> >>>header bolts after hot and again each week until they no long snug
>> >> >>>up.
>> >> >>>You may need a new gasket now.
>> >> >>> Bearing noise we will change pitch with RPM.
>> >> >>> God Bless America, ßill O|||||||O
>> >> >>>mailto:-------------------- http://www.----------.com/
>> >> >>>
>> >> >>>Pi-Eyed Piper wrote:
>> >> >>>
>> >> >>>>I'll try that....I just dont want it to be engine noise, I wanted
>> >> >>>>another
>> >> >>>>year before I heard any of that...
>> >> >>
>> >> >>

 

I hope the cover is scored...I dont want anyone to tell me im gonna be
rebuilding this engine. one more year, just ONE more.




"Mike Romain" <romainm@sympatico.ca> wrote in message
news:42658DEB.5BC50649@sympatico.ca...
>I was amazed when I changed one and still had almost 17 deg of slop.
> That is with new steel wheels and chain.
>
> They can start rattling on the cast guide when they get too stretched
> though. The marks on the inside cover will tell you, if the cast guide
> isn't worn, the chain is fine.
>
> A cheap auto stethoscope that most parts stores sell is great for
> pegging noise.
>
> I once told a new acquaintance I met from this group when I met him that
> I heard bearing knocks at #1, #3, #4, #6 and maybe another up front on
> his recently 'rebuilt' 258.
>
> I laughed and said ok, this stethoscope is just too much, I hear too
> much, LOL!
>
> Well, a couple weeks later he spun a bearing and the 'rebuild' had mixed
> up bearing caps so all the knocks I heard were valid.....
>
> I helped rebuild that engine between Xmas and New Years at -20C in an
> unheated garage.... He only lived around the corner, literally.
>
> Mike
>
> Pi-Eyed Piper wrote:
>>
>> wow, I thought that seemed like a lot...I'm at a loss
>>
>> it's not exhaust, wrong side.
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:426579DB.5E1D1A29@sympatico.ca...
>> > Even new, the chain has an easy 15, but 20 is pushing it.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>> >
>> > Pi-Eyed Piper wrote:
>> >>
>> >> not the header, checked lastnight....theres about 20 degrees of turn
>> >> in
>> >> the
>> >> timing chain....gonna give that a try.
>> >>
>> >> "RoyJ" <spamless@microsoft.net> wrote in message
>> >> news:sj99e.8870$An2.2619@newsread2.news.pas.earthl ink.net...
>> >> > You need to retorque them 3 or 4 times. As Bill said, if they start
>> >> > to
>> >> > leak, you can burn though and have to start over with a new gasket.
>> >> >
>> >> > Pi-Eyed Piper wrote:
>> >> >
>> >> >> could be...I retourqued them a week later but who knows....If thats
>> >> >> all
>> >> >> it is, awesome.
>> >> >>
>> >> >>
>> >> >> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
>> >> >> news:42643FB3.19F6E2DD@***.net...
>> >> >>
>> >> >>> I'll put my money on Doug's suggestion, you forgot to retorque
>> >> >>> the
>> >> >>>header bolts after hot and again each week until they no long snug
>> >> >>>up.
>> >> >>>You may need a new gasket now.
>> >> >>> Bearing noise we will change pitch with RPM.
>> >> >>> God Bless America, ßill O|||||||O
>> >> >>>mailto:-------------------- http://www.----------.com/
>> >> >>>
>> >> >>>Pi-Eyed Piper wrote:
>> >> >>>
>> >> >>>>I'll try that....I just dont want it to be engine noise, I wanted
>> >> >>>>another
>> >> >>>>year before I heard any of that...
>> >> >>
>> >> >>

 

> this rattle isn't really rythmic at all. Not like a lifter. it's more like
> the sound of a nut or bolt bouncing around in a tight spot, but really
> quiet. I'm gonna do the timing chain anyway, if thats not it (which it
> probably isn't) its one less thing I'll need to worry about

I had a valve rocker work it's way loose. Clattered something nasty.
Didn't wreck anything though. But this was on a 2.8L V6 so it may be less
relevant.

Never underestimate the value of using a stethoscope to isolate the source
of a noise. Narrow down exactly what side of the engine it's coming from
(top/back/bottom/front/etc). Replacing a timing chain as a preventative is
probably more work than needed.

 

> this rattle isn't really rythmic at all. Not like a lifter. it's more like
> the sound of a nut or bolt bouncing around in a tight spot, but really
> quiet. I'm gonna do the timing chain anyway, if thats not it (which it
> probably isn't) its one less thing I'll need to worry about

I had a valve rocker work it's way loose. Clattered something nasty.
Didn't wreck anything though. But this was on a 2.8L V6 so it may be less
relevant.

Never underestimate the value of using a stethoscope to isolate the source
of a noise. Narrow down exactly what side of the engine it's coming from
(top/back/bottom/front/etc). Replacing a timing chain as a preventative is
probably more work than needed.

 

> this rattle isn't really rythmic at all. Not like a lifter. it's more like
> the sound of a nut or bolt bouncing around in a tight spot, but really
> quiet. I'm gonna do the timing chain anyway, if thats not it (which it
> probably isn't) its one less thing I'll need to worry about

I had a valve rocker work it's way loose. Clattered something nasty.
Didn't wreck anything though. But this was on a 2.8L V6 so it may be less
relevant.

Never underestimate the value of using a stethoscope to isolate the source
of a noise. Narrow down exactly what side of the engine it's coming from
(top/back/bottom/front/etc). Replacing a timing chain as a preventative is
probably more work than needed.

 

> this rattle isn't really rythmic at all. Not like a lifter. it's more like
> the sound of a nut or bolt bouncing around in a tight spot, but really
> quiet. I'm gonna do the timing chain anyway, if thats not it (which it
> probably isn't) its one less thing I'll need to worry about

I had a valve rocker work it's way loose. Clattered something nasty.
Didn't wreck anything though. But this was on a 2.8L V6 so it may be less
relevant.

Never underestimate the value of using a stethoscope to isolate the source
of a noise. Narrow down exactly what side of the engine it's coming from
(top/back/bottom/front/etc). Replacing a timing chain as a preventative is
probably more work than needed.

 

And the stethoscope doesn't have to be fancy, just a three foot
section of garden hose works perfect.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

wkearney99 wrote:
>
> I had a valve rocker work it's way loose. Clattered something nasty.
> Didn't wreck anything though. But this was on a 2.8L V6 so it may be less
> relevant.
>
> Never underestimate the value of using a stethoscope to isolate the source
> of a noise. Narrow down exactly what side of the engine it's coming from
> (top/back/bottom/front/etc). Replacing a timing chain as a preventative is
> probably more work than needed.