The difference in compression is not good, but it would not cause the
mentioned symptoms.  I've had some bad running issues when the (unclippped)
AFM connection came loose.  Idled OK, but would not run with throttle
application.  I'd also look at major vacuum loss, like the breather hose, or
even the AFM boot.  Then the new O2 sensor or the coolant temp sensor.

Look for obvious issues, check grounds, disconnect O2 and then coolant temp.

Karl Wolz

|-----Original Message-----
|From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]
|On Behalf Of Rob
|Sent: Monday, July 25, 2011 10:58 AM
|To: vanagon@GERRY.VANAGON.COM
|Subject: Re: Strange Catastrophic Failure
|
|A 75 psi difference in compression pressures would bother me,
|bother me a lot.
|
|Rob
|becida@comcast.net
|
|At  7/25/2011 09:47 AM, Jake de Villiers wrote:
|
|
|>Does it crank fairly evenly?  That low cylinder is a little
|worrisome.
|>If the lifter's had a spasm and is keeping one of the valves from
|>closing fully...
|>
|>Good luck!
|>
|>On Mon, Jul 25, 2011 at 1:29 AM, Max Wellhouse
|<dimwittedmoose@cfu.net>wrote:
|>
|> > Drove my 90 GL w/248k on the ODO(Boston Bob rebuild
|at130k) to work
|> > last week with no problems.  1 hours later when I try to
|start it to
|> > go home, it did start sorta, but wouldn't build up RPMs and was
|> > running WAY rich.  Checked compression and had the following  1-165
|> > 2- 135, 3 -95, and 4- 135.  Don't think that's the major problem,
|> > though.
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