1980 CJ5 Compression #'s?
05-02-2006, 03:03 PM
#1
Guest
Posts: n/a
1980 CJ5 Compression #'s?
Hey all,
Haven't posted on here in ages since the death of my '86 CJ7's engine. I'm
looking into an '80 CJ5 today with the 4.2L I6 engine. It's been rolled on
the highway and has some hood/windshield damage. Haven't looked at it yet
but the engine is said to run fine and the frame would pass integrity (will
get this checked before purchase). I'm looking into merging the parts off my
CJ7 into this to amalgamate a nice vehicle I can build up. First off, will
the hood/windshield parts and most other parts from a CJ7 onto a CJ5 or vice
versa? My CJ7 has the small 2.5L 4cyl and is very rusty.
Also, I'm going to take a compression test of the I6 engine - what are some
good numbers? I know they should all be within 5-10 of each other but just
need a ballpark of decent #'s to watch for. My 4cyl has 3 cylinders around
130 and one in the 80's that's blowing smoke so I know that=bad.
Thanks!
Haven't posted on here in ages since the death of my '86 CJ7's engine. I'm
looking into an '80 CJ5 today with the 4.2L I6 engine. It's been rolled on
the highway and has some hood/windshield damage. Haven't looked at it yet
but the engine is said to run fine and the frame would pass integrity (will
get this checked before purchase). I'm looking into merging the parts off my
CJ7 into this to amalgamate a nice vehicle I can build up. First off, will
the hood/windshield parts and most other parts from a CJ7 onto a CJ5 or vice
versa? My CJ7 has the small 2.5L 4cyl and is very rusty.
Also, I'm going to take a compression test of the I6 engine - what are some
good numbers? I know they should all be within 5-10 of each other but just
need a ballpark of decent #'s to watch for. My 4cyl has 3 cylinders around
130 and one in the 80's that's blowing smoke so I know that=bad.
Thanks!
05-03-2006, 10:34 PM
#2
Guest
Posts: n/a
Re: 1980 CJ5 Compression #'s?
On Tue, 02 May 2006 19:03:26 GMT in <22O5g.106994$WI1.50668@pd7tw2no>,
"griffin" <gryffy@DELTHISshaw.ca> graced the world with this thought:
>Hey all,
>
>Haven't posted on here in ages since the death of my '86 CJ7's engine. I'm
>looking into an '80 CJ5 today with the 4.2L I6 engine. It's been rolled on
>the highway and has some hood/windshield damage. Haven't looked at it yet
>but the engine is said to run fine and the frame would pass integrity (will
>get this checked before purchase). I'm looking into merging the parts off my
>CJ7 into this to amalgamate a nice vehicle I can build up. First off, will
>the hood/windshield parts and most other parts from a CJ7 onto a CJ5 or vice
>versa? My CJ7 has the small 2.5L 4cyl and is very rusty.
>
>Also, I'm going to take a compression test of the I6 engine - what are some
>good numbers? I know they should all be within 5-10 of each other but just
>need a ballpark of decent #'s to watch for. My 4cyl has 3 cylinders around
>130 and one in the 80's that's blowing smoke so I know that=bad.
>
>Thanks!
>
I think the compression is 150, but not absolutely positive on that.
"griffin" <gryffy@DELTHISshaw.ca> graced the world with this thought:
>Hey all,
>
>Haven't posted on here in ages since the death of my '86 CJ7's engine. I'm
>looking into an '80 CJ5 today with the 4.2L I6 engine. It's been rolled on
>the highway and has some hood/windshield damage. Haven't looked at it yet
>but the engine is said to run fine and the frame would pass integrity (will
>get this checked before purchase). I'm looking into merging the parts off my
>CJ7 into this to amalgamate a nice vehicle I can build up. First off, will
>the hood/windshield parts and most other parts from a CJ7 onto a CJ5 or vice
>versa? My CJ7 has the small 2.5L 4cyl and is very rusty.
>
>Also, I'm going to take a compression test of the I6 engine - what are some
>good numbers? I know they should all be within 5-10 of each other but just
>need a ballpark of decent #'s to watch for. My 4cyl has 3 cylinders around
>130 and one in the 80's that's blowing smoke so I know that=bad.
>
>Thanks!
>
I think the compression is 150, but not absolutely positive on that.
05-03-2006, 10:34 PM
#3
Guest
Posts: n/a
Re: 1980 CJ5 Compression #'s?
On Tue, 02 May 2006 19:03:26 GMT in <22O5g.106994$WI1.50668@pd7tw2no>,
"griffin" <gryffy@DELTHISshaw.ca> graced the world with this thought:
>Hey all,
>
>Haven't posted on here in ages since the death of my '86 CJ7's engine. I'm
>looking into an '80 CJ5 today with the 4.2L I6 engine. It's been rolled on
>the highway and has some hood/windshield damage. Haven't looked at it yet
>but the engine is said to run fine and the frame would pass integrity (will
>get this checked before purchase). I'm looking into merging the parts off my
>CJ7 into this to amalgamate a nice vehicle I can build up. First off, will
>the hood/windshield parts and most other parts from a CJ7 onto a CJ5 or vice
>versa? My CJ7 has the small 2.5L 4cyl and is very rusty.
>
>Also, I'm going to take a compression test of the I6 engine - what are some
>good numbers? I know they should all be within 5-10 of each other but just
>need a ballpark of decent #'s to watch for. My 4cyl has 3 cylinders around
>130 and one in the 80's that's blowing smoke so I know that=bad.
>
>Thanks!
>
I think the compression is 150, but not absolutely positive on that.
"griffin" <gryffy@DELTHISshaw.ca> graced the world with this thought:
>Hey all,
>
>Haven't posted on here in ages since the death of my '86 CJ7's engine. I'm
>looking into an '80 CJ5 today with the 4.2L I6 engine. It's been rolled on
>the highway and has some hood/windshield damage. Haven't looked at it yet
>but the engine is said to run fine and the frame would pass integrity (will
>get this checked before purchase). I'm looking into merging the parts off my
>CJ7 into this to amalgamate a nice vehicle I can build up. First off, will
>the hood/windshield parts and most other parts from a CJ7 onto a CJ5 or vice
>versa? My CJ7 has the small 2.5L 4cyl and is very rusty.
>
>Also, I'm going to take a compression test of the I6 engine - what are some
>good numbers? I know they should all be within 5-10 of each other but just
>need a ballpark of decent #'s to watch for. My 4cyl has 3 cylinders around
>130 and one in the 80's that's blowing smoke so I know that=bad.
>
>Thanks!
>
I think the compression is 150, but not absolutely positive on that.
05-03-2006, 10:34 PM
#4
Guest
Posts: n/a
Re: 1980 CJ5 Compression #'s?
On Tue, 02 May 2006 19:03:26 GMT in <22O5g.106994$WI1.50668@pd7tw2no>,
"griffin" <gryffy@DELTHISshaw.ca> graced the world with this thought:
>Hey all,
>
>Haven't posted on here in ages since the death of my '86 CJ7's engine. I'm
>looking into an '80 CJ5 today with the 4.2L I6 engine. It's been rolled on
>the highway and has some hood/windshield damage. Haven't looked at it yet
>but the engine is said to run fine and the frame would pass integrity (will
>get this checked before purchase). I'm looking into merging the parts off my
>CJ7 into this to amalgamate a nice vehicle I can build up. First off, will
>the hood/windshield parts and most other parts from a CJ7 onto a CJ5 or vice
>versa? My CJ7 has the small 2.5L 4cyl and is very rusty.
>
>Also, I'm going to take a compression test of the I6 engine - what are some
>good numbers? I know they should all be within 5-10 of each other but just
>need a ballpark of decent #'s to watch for. My 4cyl has 3 cylinders around
>130 and one in the 80's that's blowing smoke so I know that=bad.
>
>Thanks!
>
I think the compression is 150, but not absolutely positive on that.
"griffin" <gryffy@DELTHISshaw.ca> graced the world with this thought:
>Hey all,
>
>Haven't posted on here in ages since the death of my '86 CJ7's engine. I'm
>looking into an '80 CJ5 today with the 4.2L I6 engine. It's been rolled on
>the highway and has some hood/windshield damage. Haven't looked at it yet
>but the engine is said to run fine and the frame would pass integrity (will
>get this checked before purchase). I'm looking into merging the parts off my
>CJ7 into this to amalgamate a nice vehicle I can build up. First off, will
>the hood/windshield parts and most other parts from a CJ7 onto a CJ5 or vice
>versa? My CJ7 has the small 2.5L 4cyl and is very rusty.
>
>Also, I'm going to take a compression test of the I6 engine - what are some
>good numbers? I know they should all be within 5-10 of each other but just
>need a ballpark of decent #'s to watch for. My 4cyl has 3 cylinders around
>130 and one in the 80's that's blowing smoke so I know that=bad.
>
>Thanks!
>
I think the compression is 150, but not absolutely positive on that.
05-03-2006, 11:18 PM
#5
Guest
Posts: n/a
Re: 1980 CJ5 Compression #'s?
There are many variables, mostly due the condition of the battery
starter, he got the important thing is they have to be within ten pounds
of each other: http://www.georgiazclub.com/tips/ztech/comptest.htm
Throttle should wide open.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
bizbee wrote:
>
> I think the compression is 150, but not absolutely positive on that.
starter, he got the important thing is they have to be within ten pounds
of each other: http://www.georgiazclub.com/tips/ztech/comptest.htm
Throttle should wide open.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
bizbee wrote:
>
> I think the compression is 150, but not absolutely positive on that.
05-03-2006, 11:18 PM
#6
Guest
Posts: n/a
Re: 1980 CJ5 Compression #'s?
There are many variables, mostly due the condition of the battery
starter, he got the important thing is they have to be within ten pounds
of each other: http://www.georgiazclub.com/tips/ztech/comptest.htm
Throttle should wide open.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
bizbee wrote:
>
> I think the compression is 150, but not absolutely positive on that.
starter, he got the important thing is they have to be within ten pounds
of each other: http://www.georgiazclub.com/tips/ztech/comptest.htm
Throttle should wide open.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
bizbee wrote:
>
> I think the compression is 150, but not absolutely positive on that.
05-03-2006, 11:18 PM
#7
Guest
Posts: n/a
Re: 1980 CJ5 Compression #'s?
There are many variables, mostly due the condition of the battery
starter, he got the important thing is they have to be within ten pounds
of each other: http://www.georgiazclub.com/tips/ztech/comptest.htm
Throttle should wide open.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
bizbee wrote:
>
> I think the compression is 150, but not absolutely positive on that.
starter, he got the important thing is they have to be within ten pounds
of each other: http://www.georgiazclub.com/tips/ztech/comptest.htm
Throttle should wide open.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
bizbee wrote:
>
> I think the compression is 150, but not absolutely positive on that.