360 v8 Compression check
#61
Guest
Posts: n/a
Re: 360 v8 Compression check
Ah, no I didn't. It's dark now, so I can't retry it unfortunately.
Dave
"c" <c@me.org> wrote in message
news:tUbWg.1392$IO2.1010@tornado.rdc-kc.rr.com...
> One thing I don't think anyone mentioned. Did you have the throttle open
> when you did the test? If not, the reading will be low.
>
> Chris
>
> "billy ray" <billy_ray@SPAMfuse.net> wrote in message
> news:bf3f2$45294873$422afc51$312@FUSE.NET...
> > That has the AMC 360 right?
> >
> > http://amccf.com/tech/v8_specs.html
> >
> >
> >
> > "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> > news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
> >> Any one got the specs for a compression check on a 360 v8 '91 ?
> >>
> >> I'm only getting 8 bar (~ 115 psi) pretty consistently across all
> >> cylinders.
> >> I would have expected about 140-160 psi and am a bit surprised it is so
> >> consisently low. That was a dry test - didn't do a wet one.
> >>
> >> Dave Milne, Scotland '91 Wagoneer
> >>
> >>
> >
> >
>
>
Dave
"c" <c@me.org> wrote in message
news:tUbWg.1392$IO2.1010@tornado.rdc-kc.rr.com...
> One thing I don't think anyone mentioned. Did you have the throttle open
> when you did the test? If not, the reading will be low.
>
> Chris
>
> "billy ray" <billy_ray@SPAMfuse.net> wrote in message
> news:bf3f2$45294873$422afc51$312@FUSE.NET...
> > That has the AMC 360 right?
> >
> > http://amccf.com/tech/v8_specs.html
> >
> >
> >
> > "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> > news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
> >> Any one got the specs for a compression check on a 360 v8 '91 ?
> >>
> >> I'm only getting 8 bar (~ 115 psi) pretty consistently across all
> >> cylinders.
> >> I would have expected about 140-160 psi and am a bit surprised it is so
> >> consisently low. That was a dry test - didn't do a wet one.
> >>
> >> Dave Milne, Scotland '91 Wagoneer
> >>
> >>
> >
> >
>
>
#62
Guest
Posts: n/a
Re: 360 v8 Compression check
Yes, that's the one. Can't see the compression ratio on the sheet, but I
gather I should have had the throttle open which I didn't.
Dave
"billy ray" <billy_ray@SPAMfuse.net> wrote in message
news:bf3f2$45294873$422afc51$312@FUSE.NET...
> That has the AMC 360 right?
>
> http://amccf.com/tech/v8_specs.html
>
>
>
> "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
> > Any one got the specs for a compression check on a 360 v8 '91 ?
> >
> > I'm only getting 8 bar (~ 115 psi) pretty consistently across all
> > cylinders.
> > I would have expected about 140-160 psi and am a bit surprised it is so
> > consisently low. That was a dry test - didn't do a wet one.
> >
> > Dave Milne, Scotland '91 Wagoneer
> >
> >
>
>
gather I should have had the throttle open which I didn't.
Dave
"billy ray" <billy_ray@SPAMfuse.net> wrote in message
news:bf3f2$45294873$422afc51$312@FUSE.NET...
> That has the AMC 360 right?
>
> http://amccf.com/tech/v8_specs.html
>
>
>
> "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
> > Any one got the specs for a compression check on a 360 v8 '91 ?
> >
> > I'm only getting 8 bar (~ 115 psi) pretty consistently across all
> > cylinders.
> > I would have expected about 140-160 psi and am a bit surprised it is so
> > consisently low. That was a dry test - didn't do a wet one.
> >
> > Dave Milne, Scotland '91 Wagoneer
> >
> >
>
>
#63
Guest
Posts: n/a
Re: 360 v8 Compression check
Yes, that's the one. Can't see the compression ratio on the sheet, but I
gather I should have had the throttle open which I didn't.
Dave
"billy ray" <billy_ray@SPAMfuse.net> wrote in message
news:bf3f2$45294873$422afc51$312@FUSE.NET...
> That has the AMC 360 right?
>
> http://amccf.com/tech/v8_specs.html
>
>
>
> "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
> > Any one got the specs for a compression check on a 360 v8 '91 ?
> >
> > I'm only getting 8 bar (~ 115 psi) pretty consistently across all
> > cylinders.
> > I would have expected about 140-160 psi and am a bit surprised it is so
> > consisently low. That was a dry test - didn't do a wet one.
> >
> > Dave Milne, Scotland '91 Wagoneer
> >
> >
>
>
gather I should have had the throttle open which I didn't.
Dave
"billy ray" <billy_ray@SPAMfuse.net> wrote in message
news:bf3f2$45294873$422afc51$312@FUSE.NET...
> That has the AMC 360 right?
>
> http://amccf.com/tech/v8_specs.html
>
>
>
> "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
> > Any one got the specs for a compression check on a 360 v8 '91 ?
> >
> > I'm only getting 8 bar (~ 115 psi) pretty consistently across all
> > cylinders.
> > I would have expected about 140-160 psi and am a bit surprised it is so
> > consisently low. That was a dry test - didn't do a wet one.
> >
> > Dave Milne, Scotland '91 Wagoneer
> >
> >
>
>
#64
Guest
Posts: n/a
Re: 360 v8 Compression check
Yes, that's the one. Can't see the compression ratio on the sheet, but I
gather I should have had the throttle open which I didn't.
Dave
"billy ray" <billy_ray@SPAMfuse.net> wrote in message
news:bf3f2$45294873$422afc51$312@FUSE.NET...
> That has the AMC 360 right?
>
> http://amccf.com/tech/v8_specs.html
>
>
>
> "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
> > Any one got the specs for a compression check on a 360 v8 '91 ?
> >
> > I'm only getting 8 bar (~ 115 psi) pretty consistently across all
> > cylinders.
> > I would have expected about 140-160 psi and am a bit surprised it is so
> > consisently low. That was a dry test - didn't do a wet one.
> >
> > Dave Milne, Scotland '91 Wagoneer
> >
> >
>
>
gather I should have had the throttle open which I didn't.
Dave
"billy ray" <billy_ray@SPAMfuse.net> wrote in message
news:bf3f2$45294873$422afc51$312@FUSE.NET...
> That has the AMC 360 right?
>
> http://amccf.com/tech/v8_specs.html
>
>
>
> "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
> > Any one got the specs for a compression check on a 360 v8 '91 ?
> >
> > I'm only getting 8 bar (~ 115 psi) pretty consistently across all
> > cylinders.
> > I would have expected about 140-160 psi and am a bit surprised it is so
> > consisently low. That was a dry test - didn't do a wet one.
> >
> > Dave Milne, Scotland '91 Wagoneer
> >
> >
>
>
#65
Guest
Posts: n/a
Re: 360 v8 Compression check
cap's.
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:VRbWg.31470$r61.13649@text.news.blueyonder.co .uk...
> Nothing like that fortunately. When I start it up, water just overflows
the
> top if the caps not on.
>
> Dave
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:4529497A.AA8E835C@sympatico.ca...
> > Here is what the coolant will look like if you have a blown headgasket
> > and warm it up with no cap on:
> >
> > http://www.imagestation.com/album/pi...?id=4290636987
> >
> > Mike
> >
> > Dave Milne wrote:
> > >
> > > Cheers Mike - inline !
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:45293415.B87F702@sympatico.ca...
> > > > If you are burning the water, the spark plug in that cylinder will
> look
> > > > like new.
> > >
> > > No, they are all a nice shade of light brown.
> > >
> > > > How old is the rad cap? A bad one can let too much water into the
> > > > overflow and not suck it back when it cools down. So can a leak in
> the
> > > > line from the rad to the overflow. It might not drip when the
coolant
> > > > is coming out of the rad as it warms up, but it might allow air to
be
> > > > sucked back in when the system is supposed to be sucking coolant
back
> as
> > > > it cools down.
> > >
> > > The rad cap is approx 2 years old. I only use the vehicle at weekends,
> so
> > > has done less than
> > > 600 miles in that time (was doing it up). Don't think the expansion
line
> is
> > > bad, but it is
> > > cheap enough to replace on a whim.
> > >
> > > > Even if it fills the overflow, when the rad cap is working, it will
> > > > 'unfill' it as it cools down. If not it is a bad cap or air leak.
> > >
> > > That didn't happen.The top of the radiator was low by 1/2". Will get
> another
> > > cap as well, I guess.
> > >
> > > > 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)
> > > >
> > > > Dave Milne wrote:
> > > > >
> > > > > Hi Carl,
> > > > > Engine was warm. Lowest reading was about 7.75 bar on one
> cylinder
> > > only.
> > > > > Trouble is, I think something is pressurising the coolant and I
> can't
> > > work
> > > > > out what it is. Cylinder pressures are uniform, no steam coming
out
> the
> > > > > exhaust, no mayo in the oil, no oil in the water. Everything
points
> to
> > > not
> > > > > having a problem were it not for the fact water is coming out of
the
> > > > > expansion tank ! Occams Razor says it is me replacing the inlet
> manifold
> > > 3
> > > > > weeks ago, but I've just redone the inlet manifold gasket
yesterday
> (new
> > > > > Felpro gaskets both times with RTV around both sides of the
gaskets
> > > around
> > > > > the water jackets and exhaust as per instructions), and that
didn't
> > > solve
> > > > > the problem.
> > > > >
> > > > > "Slightly baffled" Dave
> > > > >
> > > > > "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message
> > > > > news:l6SdnSW8ottbu7TYnZ2dnUVZ_o-dnZ2d@comcast.com...
> > > > > > Dave,
> > > > > >
> > > > > > Was the engine warm or cold? I'll second the uniformity. So
> long
> > > as
> > > > > they
> > > > > > are all close to 8 bar, I wouldn't really worry about it. You
can
> try
> > > > > > putting a few drops of oil in each cylinder and trying the test
> again.
> > > If
> > > > > > the numbers rise your rings are a worn.
> > > > > >
> > > > > > However, with 8bar and uniformity, I wouldn't worry.
> > > > > >
> > > > > > Carl
> > > > > >
> > > > > >
> > > > > > "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> > > > > > news:Jp9Wg.31319$r61.20498@text.news.blueyonder.co .uk...
> > > > > > > Thanks Doug & Earle.
> > > > > > >
> > > > > > > Dave
> > > > > > >
> > > > > > > "DougW" <post.replies@invalid.address> wrote in message
> > > > > > > news:MC8Wg.32151$iA5.14083@dukeread11...
> > > > > > >> Dave Milne wrote:
> > > > > > >> > Any one got the specs for a compression check on a 360 v8
'91
> ?
> > > > > > >>
> > > > > > >> Got me. 160 is "normal" for the I6, but it has a higher
> compression
> > > > > > >> rating than the V8.
> > > > > > >>
> > > > > > >> > I'm only getting 8 bar (~ 115 psi) pretty consistently
across
> all
> > > > > > >> > cylinders. I would have expected about 140-160 psi and am a
> bit
> > > > > > >> > surprised it is so consisently low. That was a dry test -
> didn't
> > > do a
> > > > > > >> > wet one.
> > > > > > >>
> > > > > > >> Consistency (psi +- 10%) is what your looking for in a
> compression
> > > > > test.
> > > > > > >>
> > > > > > >> - Run the engine till it gets warm to the touch.
> > > > > > >> - I find it easier on the battery with all the plugs out.
> > > > > > >> - Hold the throttle all the way open or the engine won't
> breathe.
> > > > > > >> - Cranking time varies, but most go with 5-10. I usually do
5.
> > > > > > >>
> > > > > > >> FWIW, I do a compression test each time I change plugs.
Except
> > > this
> > > > > > >> time, the hose on my compression tester sprang a leak. :(
> 160-165
> > > is
> > > > > > >> what the I6 gets when warm.
> > > > > > >>
> > > > > > >> --
> > > > > > >> DougW
> > > > > > >>
> > > > > > >>
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
>
>
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:VRbWg.31470$r61.13649@text.news.blueyonder.co .uk...
> Nothing like that fortunately. When I start it up, water just overflows
the
> top if the caps not on.
>
> Dave
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:4529497A.AA8E835C@sympatico.ca...
> > Here is what the coolant will look like if you have a blown headgasket
> > and warm it up with no cap on:
> >
> > http://www.imagestation.com/album/pi...?id=4290636987
> >
> > Mike
> >
> > Dave Milne wrote:
> > >
> > > Cheers Mike - inline !
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:45293415.B87F702@sympatico.ca...
> > > > If you are burning the water, the spark plug in that cylinder will
> look
> > > > like new.
> > >
> > > No, they are all a nice shade of light brown.
> > >
> > > > How old is the rad cap? A bad one can let too much water into the
> > > > overflow and not suck it back when it cools down. So can a leak in
> the
> > > > line from the rad to the overflow. It might not drip when the
coolant
> > > > is coming out of the rad as it warms up, but it might allow air to
be
> > > > sucked back in when the system is supposed to be sucking coolant
back
> as
> > > > it cools down.
> > >
> > > The rad cap is approx 2 years old. I only use the vehicle at weekends,
> so
> > > has done less than
> > > 600 miles in that time (was doing it up). Don't think the expansion
line
> is
> > > bad, but it is
> > > cheap enough to replace on a whim.
> > >
> > > > Even if it fills the overflow, when the rad cap is working, it will
> > > > 'unfill' it as it cools down. If not it is a bad cap or air leak.
> > >
> > > That didn't happen.The top of the radiator was low by 1/2". Will get
> another
> > > cap as well, I guess.
> > >
> > > > 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)
> > > >
> > > > Dave Milne wrote:
> > > > >
> > > > > Hi Carl,
> > > > > Engine was warm. Lowest reading was about 7.75 bar on one
> cylinder
> > > only.
> > > > > Trouble is, I think something is pressurising the coolant and I
> can't
> > > work
> > > > > out what it is. Cylinder pressures are uniform, no steam coming
out
> the
> > > > > exhaust, no mayo in the oil, no oil in the water. Everything
points
> to
> > > not
> > > > > having a problem were it not for the fact water is coming out of
the
> > > > > expansion tank ! Occams Razor says it is me replacing the inlet
> manifold
> > > 3
> > > > > weeks ago, but I've just redone the inlet manifold gasket
yesterday
> (new
> > > > > Felpro gaskets both times with RTV around both sides of the
gaskets
> > > around
> > > > > the water jackets and exhaust as per instructions), and that
didn't
> > > solve
> > > > > the problem.
> > > > >
> > > > > "Slightly baffled" Dave
> > > > >
> > > > > "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message
> > > > > news:l6SdnSW8ottbu7TYnZ2dnUVZ_o-dnZ2d@comcast.com...
> > > > > > Dave,
> > > > > >
> > > > > > Was the engine warm or cold? I'll second the uniformity. So
> long
> > > as
> > > > > they
> > > > > > are all close to 8 bar, I wouldn't really worry about it. You
can
> try
> > > > > > putting a few drops of oil in each cylinder and trying the test
> again.
> > > If
> > > > > > the numbers rise your rings are a worn.
> > > > > >
> > > > > > However, with 8bar and uniformity, I wouldn't worry.
> > > > > >
> > > > > > Carl
> > > > > >
> > > > > >
> > > > > > "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> > > > > > news:Jp9Wg.31319$r61.20498@text.news.blueyonder.co .uk...
> > > > > > > Thanks Doug & Earle.
> > > > > > >
> > > > > > > Dave
> > > > > > >
> > > > > > > "DougW" <post.replies@invalid.address> wrote in message
> > > > > > > news:MC8Wg.32151$iA5.14083@dukeread11...
> > > > > > >> Dave Milne wrote:
> > > > > > >> > Any one got the specs for a compression check on a 360 v8
'91
> ?
> > > > > > >>
> > > > > > >> Got me. 160 is "normal" for the I6, but it has a higher
> compression
> > > > > > >> rating than the V8.
> > > > > > >>
> > > > > > >> > I'm only getting 8 bar (~ 115 psi) pretty consistently
across
> all
> > > > > > >> > cylinders. I would have expected about 140-160 psi and am a
> bit
> > > > > > >> > surprised it is so consisently low. That was a dry test -
> didn't
> > > do a
> > > > > > >> > wet one.
> > > > > > >>
> > > > > > >> Consistency (psi +- 10%) is what your looking for in a
> compression
> > > > > test.
> > > > > > >>
> > > > > > >> - Run the engine till it gets warm to the touch.
> > > > > > >> - I find it easier on the battery with all the plugs out.
> > > > > > >> - Hold the throttle all the way open or the engine won't
> breathe.
> > > > > > >> - Cranking time varies, but most go with 5-10. I usually do
5.
> > > > > > >>
> > > > > > >> FWIW, I do a compression test each time I change plugs.
Except
> > > this
> > > > > > >> time, the hose on my compression tester sprang a leak. :(
> 160-165
> > > is
> > > > > > >> what the I6 gets when warm.
> > > > > > >>
> > > > > > >> --
> > > > > > >> DougW
> > > > > > >>
> > > > > > >>
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
>
>
#66
Guest
Posts: n/a
Re: 360 v8 Compression check
cap's.
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:VRbWg.31470$r61.13649@text.news.blueyonder.co .uk...
> Nothing like that fortunately. When I start it up, water just overflows
the
> top if the caps not on.
>
> Dave
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:4529497A.AA8E835C@sympatico.ca...
> > Here is what the coolant will look like if you have a blown headgasket
> > and warm it up with no cap on:
> >
> > http://www.imagestation.com/album/pi...?id=4290636987
> >
> > Mike
> >
> > Dave Milne wrote:
> > >
> > > Cheers Mike - inline !
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:45293415.B87F702@sympatico.ca...
> > > > If you are burning the water, the spark plug in that cylinder will
> look
> > > > like new.
> > >
> > > No, they are all a nice shade of light brown.
> > >
> > > > How old is the rad cap? A bad one can let too much water into the
> > > > overflow and not suck it back when it cools down. So can a leak in
> the
> > > > line from the rad to the overflow. It might not drip when the
coolant
> > > > is coming out of the rad as it warms up, but it might allow air to
be
> > > > sucked back in when the system is supposed to be sucking coolant
back
> as
> > > > it cools down.
> > >
> > > The rad cap is approx 2 years old. I only use the vehicle at weekends,
> so
> > > has done less than
> > > 600 miles in that time (was doing it up). Don't think the expansion
line
> is
> > > bad, but it is
> > > cheap enough to replace on a whim.
> > >
> > > > Even if it fills the overflow, when the rad cap is working, it will
> > > > 'unfill' it as it cools down. If not it is a bad cap or air leak.
> > >
> > > That didn't happen.The top of the radiator was low by 1/2". Will get
> another
> > > cap as well, I guess.
> > >
> > > > 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)
> > > >
> > > > Dave Milne wrote:
> > > > >
> > > > > Hi Carl,
> > > > > Engine was warm. Lowest reading was about 7.75 bar on one
> cylinder
> > > only.
> > > > > Trouble is, I think something is pressurising the coolant and I
> can't
> > > work
> > > > > out what it is. Cylinder pressures are uniform, no steam coming
out
> the
> > > > > exhaust, no mayo in the oil, no oil in the water. Everything
points
> to
> > > not
> > > > > having a problem were it not for the fact water is coming out of
the
> > > > > expansion tank ! Occams Razor says it is me replacing the inlet
> manifold
> > > 3
> > > > > weeks ago, but I've just redone the inlet manifold gasket
yesterday
> (new
> > > > > Felpro gaskets both times with RTV around both sides of the
gaskets
> > > around
> > > > > the water jackets and exhaust as per instructions), and that
didn't
> > > solve
> > > > > the problem.
> > > > >
> > > > > "Slightly baffled" Dave
> > > > >
> > > > > "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message
> > > > > news:l6SdnSW8ottbu7TYnZ2dnUVZ_o-dnZ2d@comcast.com...
> > > > > > Dave,
> > > > > >
> > > > > > Was the engine warm or cold? I'll second the uniformity. So
> long
> > > as
> > > > > they
> > > > > > are all close to 8 bar, I wouldn't really worry about it. You
can
> try
> > > > > > putting a few drops of oil in each cylinder and trying the test
> again.
> > > If
> > > > > > the numbers rise your rings are a worn.
> > > > > >
> > > > > > However, with 8bar and uniformity, I wouldn't worry.
> > > > > >
> > > > > > Carl
> > > > > >
> > > > > >
> > > > > > "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> > > > > > news:Jp9Wg.31319$r61.20498@text.news.blueyonder.co .uk...
> > > > > > > Thanks Doug & Earle.
> > > > > > >
> > > > > > > Dave
> > > > > > >
> > > > > > > "DougW" <post.replies@invalid.address> wrote in message
> > > > > > > news:MC8Wg.32151$iA5.14083@dukeread11...
> > > > > > >> Dave Milne wrote:
> > > > > > >> > Any one got the specs for a compression check on a 360 v8
'91
> ?
> > > > > > >>
> > > > > > >> Got me. 160 is "normal" for the I6, but it has a higher
> compression
> > > > > > >> rating than the V8.
> > > > > > >>
> > > > > > >> > I'm only getting 8 bar (~ 115 psi) pretty consistently
across
> all
> > > > > > >> > cylinders. I would have expected about 140-160 psi and am a
> bit
> > > > > > >> > surprised it is so consisently low. That was a dry test -
> didn't
> > > do a
> > > > > > >> > wet one.
> > > > > > >>
> > > > > > >> Consistency (psi +- 10%) is what your looking for in a
> compression
> > > > > test.
> > > > > > >>
> > > > > > >> - Run the engine till it gets warm to the touch.
> > > > > > >> - I find it easier on the battery with all the plugs out.
> > > > > > >> - Hold the throttle all the way open or the engine won't
> breathe.
> > > > > > >> - Cranking time varies, but most go with 5-10. I usually do
5.
> > > > > > >>
> > > > > > >> FWIW, I do a compression test each time I change plugs.
Except
> > > this
> > > > > > >> time, the hose on my compression tester sprang a leak. :(
> 160-165
> > > is
> > > > > > >> what the I6 gets when warm.
> > > > > > >>
> > > > > > >> --
> > > > > > >> DougW
> > > > > > >>
> > > > > > >>
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
>
>
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:VRbWg.31470$r61.13649@text.news.blueyonder.co .uk...
> Nothing like that fortunately. When I start it up, water just overflows
the
> top if the caps not on.
>
> Dave
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:4529497A.AA8E835C@sympatico.ca...
> > Here is what the coolant will look like if you have a blown headgasket
> > and warm it up with no cap on:
> >
> > http://www.imagestation.com/album/pi...?id=4290636987
> >
> > Mike
> >
> > Dave Milne wrote:
> > >
> > > Cheers Mike - inline !
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:45293415.B87F702@sympatico.ca...
> > > > If you are burning the water, the spark plug in that cylinder will
> look
> > > > like new.
> > >
> > > No, they are all a nice shade of light brown.
> > >
> > > > How old is the rad cap? A bad one can let too much water into the
> > > > overflow and not suck it back when it cools down. So can a leak in
> the
> > > > line from the rad to the overflow. It might not drip when the
coolant
> > > > is coming out of the rad as it warms up, but it might allow air to
be
> > > > sucked back in when the system is supposed to be sucking coolant
back
> as
> > > > it cools down.
> > >
> > > The rad cap is approx 2 years old. I only use the vehicle at weekends,
> so
> > > has done less than
> > > 600 miles in that time (was doing it up). Don't think the expansion
line
> is
> > > bad, but it is
> > > cheap enough to replace on a whim.
> > >
> > > > Even if it fills the overflow, when the rad cap is working, it will
> > > > 'unfill' it as it cools down. If not it is a bad cap or air leak.
> > >
> > > That didn't happen.The top of the radiator was low by 1/2". Will get
> another
> > > cap as well, I guess.
> > >
> > > > 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)
> > > >
> > > > Dave Milne wrote:
> > > > >
> > > > > Hi Carl,
> > > > > Engine was warm. Lowest reading was about 7.75 bar on one
> cylinder
> > > only.
> > > > > Trouble is, I think something is pressurising the coolant and I
> can't
> > > work
> > > > > out what it is. Cylinder pressures are uniform, no steam coming
out
> the
> > > > > exhaust, no mayo in the oil, no oil in the water. Everything
points
> to
> > > not
> > > > > having a problem were it not for the fact water is coming out of
the
> > > > > expansion tank ! Occams Razor says it is me replacing the inlet
> manifold
> > > 3
> > > > > weeks ago, but I've just redone the inlet manifold gasket
yesterday
> (new
> > > > > Felpro gaskets both times with RTV around both sides of the
gaskets
> > > around
> > > > > the water jackets and exhaust as per instructions), and that
didn't
> > > solve
> > > > > the problem.
> > > > >
> > > > > "Slightly baffled" Dave
> > > > >
> > > > > "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message
> > > > > news:l6SdnSW8ottbu7TYnZ2dnUVZ_o-dnZ2d@comcast.com...
> > > > > > Dave,
> > > > > >
> > > > > > Was the engine warm or cold? I'll second the uniformity. So
> long
> > > as
> > > > > they
> > > > > > are all close to 8 bar, I wouldn't really worry about it. You
can
> try
> > > > > > putting a few drops of oil in each cylinder and trying the test
> again.
> > > If
> > > > > > the numbers rise your rings are a worn.
> > > > > >
> > > > > > However, with 8bar and uniformity, I wouldn't worry.
> > > > > >
> > > > > > Carl
> > > > > >
> > > > > >
> > > > > > "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> > > > > > news:Jp9Wg.31319$r61.20498@text.news.blueyonder.co .uk...
> > > > > > > Thanks Doug & Earle.
> > > > > > >
> > > > > > > Dave
> > > > > > >
> > > > > > > "DougW" <post.replies@invalid.address> wrote in message
> > > > > > > news:MC8Wg.32151$iA5.14083@dukeread11...
> > > > > > >> Dave Milne wrote:
> > > > > > >> > Any one got the specs for a compression check on a 360 v8
'91
> ?
> > > > > > >>
> > > > > > >> Got me. 160 is "normal" for the I6, but it has a higher
> compression
> > > > > > >> rating than the V8.
> > > > > > >>
> > > > > > >> > I'm only getting 8 bar (~ 115 psi) pretty consistently
across
> all
> > > > > > >> > cylinders. I would have expected about 140-160 psi and am a
> bit
> > > > > > >> > surprised it is so consisently low. That was a dry test -
> didn't
> > > do a
> > > > > > >> > wet one.
> > > > > > >>
> > > > > > >> Consistency (psi +- 10%) is what your looking for in a
> compression
> > > > > test.
> > > > > > >>
> > > > > > >> - Run the engine till it gets warm to the touch.
> > > > > > >> - I find it easier on the battery with all the plugs out.
> > > > > > >> - Hold the throttle all the way open or the engine won't
> breathe.
> > > > > > >> - Cranking time varies, but most go with 5-10. I usually do
5.
> > > > > > >>
> > > > > > >> FWIW, I do a compression test each time I change plugs.
Except
> > > this
> > > > > > >> time, the hose on my compression tester sprang a leak. :(
> 160-165
> > > is
> > > > > > >> what the I6 gets when warm.
> > > > > > >>
> > > > > > >> --
> > > > > > >> DougW
> > > > > > >>
> > > > > > >>
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
>
>
#67
Guest
Posts: n/a
Re: 360 v8 Compression check
cap's.
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:VRbWg.31470$r61.13649@text.news.blueyonder.co .uk...
> Nothing like that fortunately. When I start it up, water just overflows
the
> top if the caps not on.
>
> Dave
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:4529497A.AA8E835C@sympatico.ca...
> > Here is what the coolant will look like if you have a blown headgasket
> > and warm it up with no cap on:
> >
> > http://www.imagestation.com/album/pi...?id=4290636987
> >
> > Mike
> >
> > Dave Milne wrote:
> > >
> > > Cheers Mike - inline !
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:45293415.B87F702@sympatico.ca...
> > > > If you are burning the water, the spark plug in that cylinder will
> look
> > > > like new.
> > >
> > > No, they are all a nice shade of light brown.
> > >
> > > > How old is the rad cap? A bad one can let too much water into the
> > > > overflow and not suck it back when it cools down. So can a leak in
> the
> > > > line from the rad to the overflow. It might not drip when the
coolant
> > > > is coming out of the rad as it warms up, but it might allow air to
be
> > > > sucked back in when the system is supposed to be sucking coolant
back
> as
> > > > it cools down.
> > >
> > > The rad cap is approx 2 years old. I only use the vehicle at weekends,
> so
> > > has done less than
> > > 600 miles in that time (was doing it up). Don't think the expansion
line
> is
> > > bad, but it is
> > > cheap enough to replace on a whim.
> > >
> > > > Even if it fills the overflow, when the rad cap is working, it will
> > > > 'unfill' it as it cools down. If not it is a bad cap or air leak.
> > >
> > > That didn't happen.The top of the radiator was low by 1/2". Will get
> another
> > > cap as well, I guess.
> > >
> > > > 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)
> > > >
> > > > Dave Milne wrote:
> > > > >
> > > > > Hi Carl,
> > > > > Engine was warm. Lowest reading was about 7.75 bar on one
> cylinder
> > > only.
> > > > > Trouble is, I think something is pressurising the coolant and I
> can't
> > > work
> > > > > out what it is. Cylinder pressures are uniform, no steam coming
out
> the
> > > > > exhaust, no mayo in the oil, no oil in the water. Everything
points
> to
> > > not
> > > > > having a problem were it not for the fact water is coming out of
the
> > > > > expansion tank ! Occams Razor says it is me replacing the inlet
> manifold
> > > 3
> > > > > weeks ago, but I've just redone the inlet manifold gasket
yesterday
> (new
> > > > > Felpro gaskets both times with RTV around both sides of the
gaskets
> > > around
> > > > > the water jackets and exhaust as per instructions), and that
didn't
> > > solve
> > > > > the problem.
> > > > >
> > > > > "Slightly baffled" Dave
> > > > >
> > > > > "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message
> > > > > news:l6SdnSW8ottbu7TYnZ2dnUVZ_o-dnZ2d@comcast.com...
> > > > > > Dave,
> > > > > >
> > > > > > Was the engine warm or cold? I'll second the uniformity. So
> long
> > > as
> > > > > they
> > > > > > are all close to 8 bar, I wouldn't really worry about it. You
can
> try
> > > > > > putting a few drops of oil in each cylinder and trying the test
> again.
> > > If
> > > > > > the numbers rise your rings are a worn.
> > > > > >
> > > > > > However, with 8bar and uniformity, I wouldn't worry.
> > > > > >
> > > > > > Carl
> > > > > >
> > > > > >
> > > > > > "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> > > > > > news:Jp9Wg.31319$r61.20498@text.news.blueyonder.co .uk...
> > > > > > > Thanks Doug & Earle.
> > > > > > >
> > > > > > > Dave
> > > > > > >
> > > > > > > "DougW" <post.replies@invalid.address> wrote in message
> > > > > > > news:MC8Wg.32151$iA5.14083@dukeread11...
> > > > > > >> Dave Milne wrote:
> > > > > > >> > Any one got the specs for a compression check on a 360 v8
'91
> ?
> > > > > > >>
> > > > > > >> Got me. 160 is "normal" for the I6, but it has a higher
> compression
> > > > > > >> rating than the V8.
> > > > > > >>
> > > > > > >> > I'm only getting 8 bar (~ 115 psi) pretty consistently
across
> all
> > > > > > >> > cylinders. I would have expected about 140-160 psi and am a
> bit
> > > > > > >> > surprised it is so consisently low. That was a dry test -
> didn't
> > > do a
> > > > > > >> > wet one.
> > > > > > >>
> > > > > > >> Consistency (psi +- 10%) is what your looking for in a
> compression
> > > > > test.
> > > > > > >>
> > > > > > >> - Run the engine till it gets warm to the touch.
> > > > > > >> - I find it easier on the battery with all the plugs out.
> > > > > > >> - Hold the throttle all the way open or the engine won't
> breathe.
> > > > > > >> - Cranking time varies, but most go with 5-10. I usually do
5.
> > > > > > >>
> > > > > > >> FWIW, I do a compression test each time I change plugs.
Except
> > > this
> > > > > > >> time, the hose on my compression tester sprang a leak. :(
> 160-165
> > > is
> > > > > > >> what the I6 gets when warm.
> > > > > > >>
> > > > > > >> --
> > > > > > >> DougW
> > > > > > >>
> > > > > > >>
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
>
>
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:VRbWg.31470$r61.13649@text.news.blueyonder.co .uk...
> Nothing like that fortunately. When I start it up, water just overflows
the
> top if the caps not on.
>
> Dave
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:4529497A.AA8E835C@sympatico.ca...
> > Here is what the coolant will look like if you have a blown headgasket
> > and warm it up with no cap on:
> >
> > http://www.imagestation.com/album/pi...?id=4290636987
> >
> > Mike
> >
> > Dave Milne wrote:
> > >
> > > Cheers Mike - inline !
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:45293415.B87F702@sympatico.ca...
> > > > If you are burning the water, the spark plug in that cylinder will
> look
> > > > like new.
> > >
> > > No, they are all a nice shade of light brown.
> > >
> > > > How old is the rad cap? A bad one can let too much water into the
> > > > overflow and not suck it back when it cools down. So can a leak in
> the
> > > > line from the rad to the overflow. It might not drip when the
coolant
> > > > is coming out of the rad as it warms up, but it might allow air to
be
> > > > sucked back in when the system is supposed to be sucking coolant
back
> as
> > > > it cools down.
> > >
> > > The rad cap is approx 2 years old. I only use the vehicle at weekends,
> so
> > > has done less than
> > > 600 miles in that time (was doing it up). Don't think the expansion
line
> is
> > > bad, but it is
> > > cheap enough to replace on a whim.
> > >
> > > > Even if it fills the overflow, when the rad cap is working, it will
> > > > 'unfill' it as it cools down. If not it is a bad cap or air leak.
> > >
> > > That didn't happen.The top of the radiator was low by 1/2". Will get
> another
> > > cap as well, I guess.
> > >
> > > > 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)
> > > >
> > > > Dave Milne wrote:
> > > > >
> > > > > Hi Carl,
> > > > > Engine was warm. Lowest reading was about 7.75 bar on one
> cylinder
> > > only.
> > > > > Trouble is, I think something is pressurising the coolant and I
> can't
> > > work
> > > > > out what it is. Cylinder pressures are uniform, no steam coming
out
> the
> > > > > exhaust, no mayo in the oil, no oil in the water. Everything
points
> to
> > > not
> > > > > having a problem were it not for the fact water is coming out of
the
> > > > > expansion tank ! Occams Razor says it is me replacing the inlet
> manifold
> > > 3
> > > > > weeks ago, but I've just redone the inlet manifold gasket
yesterday
> (new
> > > > > Felpro gaskets both times with RTV around both sides of the
gaskets
> > > around
> > > > > the water jackets and exhaust as per instructions), and that
didn't
> > > solve
> > > > > the problem.
> > > > >
> > > > > "Slightly baffled" Dave
> > > > >
> > > > > "Carl" <carlsaiyed@hotmailREMOVE.com> wrote in message
> > > > > news:l6SdnSW8ottbu7TYnZ2dnUVZ_o-dnZ2d@comcast.com...
> > > > > > Dave,
> > > > > >
> > > > > > Was the engine warm or cold? I'll second the uniformity. So
> long
> > > as
> > > > > they
> > > > > > are all close to 8 bar, I wouldn't really worry about it. You
can
> try
> > > > > > putting a few drops of oil in each cylinder and trying the test
> again.
> > > If
> > > > > > the numbers rise your rings are a worn.
> > > > > >
> > > > > > However, with 8bar and uniformity, I wouldn't worry.
> > > > > >
> > > > > > Carl
> > > > > >
> > > > > >
> > > > > > "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
> > > > > > news:Jp9Wg.31319$r61.20498@text.news.blueyonder.co .uk...
> > > > > > > Thanks Doug & Earle.
> > > > > > >
> > > > > > > Dave
> > > > > > >
> > > > > > > "DougW" <post.replies@invalid.address> wrote in message
> > > > > > > news:MC8Wg.32151$iA5.14083@dukeread11...
> > > > > > >> Dave Milne wrote:
> > > > > > >> > Any one got the specs for a compression check on a 360 v8
'91
> ?
> > > > > > >>
> > > > > > >> Got me. 160 is "normal" for the I6, but it has a higher
> compression
> > > > > > >> rating than the V8.
> > > > > > >>
> > > > > > >> > I'm only getting 8 bar (~ 115 psi) pretty consistently
across
> all
> > > > > > >> > cylinders. I would have expected about 140-160 psi and am a
> bit
> > > > > > >> > surprised it is so consisently low. That was a dry test -
> didn't
> > > do a
> > > > > > >> > wet one.
> > > > > > >>
> > > > > > >> Consistency (psi +- 10%) is what your looking for in a
> compression
> > > > > test.
> > > > > > >>
> > > > > > >> - Run the engine till it gets warm to the touch.
> > > > > > >> - I find it easier on the battery with all the plugs out.
> > > > > > >> - Hold the throttle all the way open or the engine won't
> breathe.
> > > > > > >> - Cranking time varies, but most go with 5-10. I usually do
5.
> > > > > > >>
> > > > > > >> FWIW, I do a compression test each time I change plugs.
Except
> > > this
> > > > > > >> time, the hose on my compression tester sprang a leak. :(
> 160-165
> > > is
> > > > > > >> what the I6 gets when warm.
> > > > > > >>
> > > > > > >> --
> > > > > > >> DougW
> > > > > > >>
> > > > > > >>
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
>
>
#68
Guest
Posts: n/a
Re: 360 v8 Compression check
140 psi minimum @ 8.25:1 compression ratio
I'm sending it to you (e-mail) as a PDF file
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:KYbWg.31485$r61.18021@text.news.blueyonder.co .uk...
> Yes, that's the one. Can't see the compression ratio on the sheet, but I
> gather I should have had the throttle open which I didn't.
>
> Dave
>
> "billy ray" <billy_ray@SPAMfuse.net> wrote in message
> news:bf3f2$45294873$422afc51$312@FUSE.NET...
>> That has the AMC 360 right?
>>
>> http://amccf.com/tech/v8_specs.html
>>
>>
>>
>> "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
>> news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
>> > Any one got the specs for a compression check on a 360 v8 '91 ?
>> >
>> > I'm only getting 8 bar (~ 115 psi) pretty consistently across all
>> > cylinders.
>> > I would have expected about 140-160 psi and am a bit surprised it is so
>> > consisently low. That was a dry test - didn't do a wet one.
>> >
>> > Dave Milne, Scotland '91 Wagoneer
>> >
>> >
>>
>>
>
>
I'm sending it to you (e-mail) as a PDF file
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:KYbWg.31485$r61.18021@text.news.blueyonder.co .uk...
> Yes, that's the one. Can't see the compression ratio on the sheet, but I
> gather I should have had the throttle open which I didn't.
>
> Dave
>
> "billy ray" <billy_ray@SPAMfuse.net> wrote in message
> news:bf3f2$45294873$422afc51$312@FUSE.NET...
>> That has the AMC 360 right?
>>
>> http://amccf.com/tech/v8_specs.html
>>
>>
>>
>> "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
>> news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
>> > Any one got the specs for a compression check on a 360 v8 '91 ?
>> >
>> > I'm only getting 8 bar (~ 115 psi) pretty consistently across all
>> > cylinders.
>> > I would have expected about 140-160 psi and am a bit surprised it is so
>> > consisently low. That was a dry test - didn't do a wet one.
>> >
>> > Dave Milne, Scotland '91 Wagoneer
>> >
>> >
>>
>>
>
>
#69
Guest
Posts: n/a
Re: 360 v8 Compression check
140 psi minimum @ 8.25:1 compression ratio
I'm sending it to you (e-mail) as a PDF file
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:KYbWg.31485$r61.18021@text.news.blueyonder.co .uk...
> Yes, that's the one. Can't see the compression ratio on the sheet, but I
> gather I should have had the throttle open which I didn't.
>
> Dave
>
> "billy ray" <billy_ray@SPAMfuse.net> wrote in message
> news:bf3f2$45294873$422afc51$312@FUSE.NET...
>> That has the AMC 360 right?
>>
>> http://amccf.com/tech/v8_specs.html
>>
>>
>>
>> "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
>> news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
>> > Any one got the specs for a compression check on a 360 v8 '91 ?
>> >
>> > I'm only getting 8 bar (~ 115 psi) pretty consistently across all
>> > cylinders.
>> > I would have expected about 140-160 psi and am a bit surprised it is so
>> > consisently low. That was a dry test - didn't do a wet one.
>> >
>> > Dave Milne, Scotland '91 Wagoneer
>> >
>> >
>>
>>
>
>
I'm sending it to you (e-mail) as a PDF file
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:KYbWg.31485$r61.18021@text.news.blueyonder.co .uk...
> Yes, that's the one. Can't see the compression ratio on the sheet, but I
> gather I should have had the throttle open which I didn't.
>
> Dave
>
> "billy ray" <billy_ray@SPAMfuse.net> wrote in message
> news:bf3f2$45294873$422afc51$312@FUSE.NET...
>> That has the AMC 360 right?
>>
>> http://amccf.com/tech/v8_specs.html
>>
>>
>>
>> "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
>> news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
>> > Any one got the specs for a compression check on a 360 v8 '91 ?
>> >
>> > I'm only getting 8 bar (~ 115 psi) pretty consistently across all
>> > cylinders.
>> > I would have expected about 140-160 psi and am a bit surprised it is so
>> > consisently low. That was a dry test - didn't do a wet one.
>> >
>> > Dave Milne, Scotland '91 Wagoneer
>> >
>> >
>>
>>
>
>
#70
Guest
Posts: n/a
Re: 360 v8 Compression check
140 psi minimum @ 8.25:1 compression ratio
I'm sending it to you (e-mail) as a PDF file
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:KYbWg.31485$r61.18021@text.news.blueyonder.co .uk...
> Yes, that's the one. Can't see the compression ratio on the sheet, but I
> gather I should have had the throttle open which I didn't.
>
> Dave
>
> "billy ray" <billy_ray@SPAMfuse.net> wrote in message
> news:bf3f2$45294873$422afc51$312@FUSE.NET...
>> That has the AMC 360 right?
>>
>> http://amccf.com/tech/v8_specs.html
>>
>>
>>
>> "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
>> news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
>> > Any one got the specs for a compression check on a 360 v8 '91 ?
>> >
>> > I'm only getting 8 bar (~ 115 psi) pretty consistently across all
>> > cylinders.
>> > I would have expected about 140-160 psi and am a bit surprised it is so
>> > consisently low. That was a dry test - didn't do a wet one.
>> >
>> > Dave Milne, Scotland '91 Wagoneer
>> >
>> >
>>
>>
>
>
I'm sending it to you (e-mail) as a PDF file
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:KYbWg.31485$r61.18021@text.news.blueyonder.co .uk...
> Yes, that's the one. Can't see the compression ratio on the sheet, but I
> gather I should have had the throttle open which I didn't.
>
> Dave
>
> "billy ray" <billy_ray@SPAMfuse.net> wrote in message
> news:bf3f2$45294873$422afc51$312@FUSE.NET...
>> That has the AMC 360 right?
>>
>> http://amccf.com/tech/v8_specs.html
>>
>>
>>
>> "Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
>> news:8c7Wg.31235$r61.2601@text.news.blueyonder.co. uk...
>> > Any one got the specs for a compression check on a 360 v8 '91 ?
>> >
>> > I'm only getting 8 bar (~ 115 psi) pretty consistently across all
>> > cylinders.
>> > I would have expected about 140-160 psi and am a bit surprised it is so
>> > consisently low. That was a dry test - didn't do a wet one.
>> >
>> > Dave Milne, Scotland '91 Wagoneer
>> >
>> >
>>
>>
>
>