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-   -   Difference between Jasper engines and rebuilt-jeep-engines (https://www.jeepscanada.com/jeep-mailing-list-32/difference-between-jasper-engines-rebuilt-jeep-engines-11095/)

William Oliveri 02-08-2004 08:00 PM

Re: Difference between Jasper engines and rebuilt-jeep-engines
 

"Busahaulic" <pearson.d@worldnetobvious.att.net> wrote in message
news:xbAVb.2519$fV5.79479@bgtnsc04-news.ops.worldnet.att.net...
Also make a mental note if one or
> two take a lot longer to pump up, but get up to a relatively high value.
> Hope I've helped!



What would it mean when one or two take a lot longer to pump up but get to a
relatively high value?

thanks,

Bill



James Morrow 02-08-2004 11:48 PM

Re: Difference between Jasper engines and rebuilt-jeep-engines
 
if you end up getting a remanufactured engine go with grooms... i
replaced mine with one of their 4.0's... runs like a champ. everyone
i've talked to has had good experiences with them. plus $90 gets you a
lifetime warranty. a bit pricey but worth it i think.

http://www.groomsengines.com/g-catalog.html#AMC

James Morrow 02-08-2004 11:48 PM

Re: Difference between Jasper engines and rebuilt-jeep-engines
 
if you end up getting a remanufactured engine go with grooms... i
replaced mine with one of their 4.0's... runs like a champ. everyone
i've talked to has had good experiences with them. plus $90 gets you a
lifetime warranty. a bit pricey but worth it i think.

http://www.groomsengines.com/g-catalog.html#AMC

James Morrow 02-08-2004 11:48 PM

Re: Difference between Jasper engines and rebuilt-jeep-engines
 
if you end up getting a remanufactured engine go with grooms... i
replaced mine with one of their 4.0's... runs like a champ. everyone
i've talked to has had good experiences with them. plus $90 gets you a
lifetime warranty. a bit pricey but worth it i think.

http://www.groomsengines.com/g-catalog.html#AMC

Busahaulic 02-09-2004 10:13 PM

Re: Difference between Jasper engines and rebuilt-jeep-engines
 
Y'know, I almost deleted that part cuz I got to thinking
about it and I guess I really don't know. It could mean that
the rings are a little sluggishdue to having gunk all over
them (sticky gunk!) Or it could mean that a valve has an
area where it doesn't seal well, but if it's a bit loose in
the guide, maybe it seals sometimes. Good question - I have
no definite answer, but for some reason I always count the
revolutions and compare. If you run into that and then end
up taking the head off, see if you can identify a possible
cause. Maybe somebody else has the right answer?

I wonder what the actual compression is in PSI while the
engine is running with the pistons doing 100 strokes a
second! I used to run single ring pistons with the ring "L"
shaped and right at the top of the piston, so the pressure
caused the "L" to rock outward and seal even better. Very
poor compression at cranking speed but it sealed better than
anything else at 12,000rpm (yeah, a small 2-stroke!)

William Oliveri <wuji@bigvalley.net> wrote in message
news:c06m33$1379k9$1@ID-193866.news.uni-berlin.de...
>
> "Busahaulic" <pearson.d@worldnetobvious.att.net> wrote in

message
>

news:xbAVb.2519$fV5.79479@bgtnsc04-news.ops.worldnet.att.net
....
> Also make a mental note if one or
> > two take a lot longer to pump up, but get up to a

relatively high value.
> > Hope I've helped!

>
>
> What would it mean when one or two take a lot longer to

pump up but get to a
> relatively high value?
>
> thanks,
>
> Bill
>
>




Busahaulic 02-09-2004 10:13 PM

Re: Difference between Jasper engines and rebuilt-jeep-engines
 
Y'know, I almost deleted that part cuz I got to thinking
about it and I guess I really don't know. It could mean that
the rings are a little sluggishdue to having gunk all over
them (sticky gunk!) Or it could mean that a valve has an
area where it doesn't seal well, but if it's a bit loose in
the guide, maybe it seals sometimes. Good question - I have
no definite answer, but for some reason I always count the
revolutions and compare. If you run into that and then end
up taking the head off, see if you can identify a possible
cause. Maybe somebody else has the right answer?

I wonder what the actual compression is in PSI while the
engine is running with the pistons doing 100 strokes a
second! I used to run single ring pistons with the ring "L"
shaped and right at the top of the piston, so the pressure
caused the "L" to rock outward and seal even better. Very
poor compression at cranking speed but it sealed better than
anything else at 12,000rpm (yeah, a small 2-stroke!)

William Oliveri <wuji@bigvalley.net> wrote in message
news:c06m33$1379k9$1@ID-193866.news.uni-berlin.de...
>
> "Busahaulic" <pearson.d@worldnetobvious.att.net> wrote in

message
>

news:xbAVb.2519$fV5.79479@bgtnsc04-news.ops.worldnet.att.net
....
> Also make a mental note if one or
> > two take a lot longer to pump up, but get up to a

relatively high value.
> > Hope I've helped!

>
>
> What would it mean when one or two take a lot longer to

pump up but get to a
> relatively high value?
>
> thanks,
>
> Bill
>
>




Busahaulic 02-09-2004 10:13 PM

Re: Difference between Jasper engines and rebuilt-jeep-engines
 
Y'know, I almost deleted that part cuz I got to thinking
about it and I guess I really don't know. It could mean that
the rings are a little sluggishdue to having gunk all over
them (sticky gunk!) Or it could mean that a valve has an
area where it doesn't seal well, but if it's a bit loose in
the guide, maybe it seals sometimes. Good question - I have
no definite answer, but for some reason I always count the
revolutions and compare. If you run into that and then end
up taking the head off, see if you can identify a possible
cause. Maybe somebody else has the right answer?

I wonder what the actual compression is in PSI while the
engine is running with the pistons doing 100 strokes a
second! I used to run single ring pistons with the ring "L"
shaped and right at the top of the piston, so the pressure
caused the "L" to rock outward and seal even better. Very
poor compression at cranking speed but it sealed better than
anything else at 12,000rpm (yeah, a small 2-stroke!)

William Oliveri <wuji@bigvalley.net> wrote in message
news:c06m33$1379k9$1@ID-193866.news.uni-berlin.de...
>
> "Busahaulic" <pearson.d@worldnetobvious.att.net> wrote in

message
>

news:xbAVb.2519$fV5.79479@bgtnsc04-news.ops.worldnet.att.net
....
> Also make a mental note if one or
> > two take a lot longer to pump up, but get up to a

relatively high value.
> > Hope I've helped!

>
>
> What would it mean when one or two take a lot longer to

pump up but get to a
> relatively high value?
>
> thanks,
>
> Bill
>
>





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