On the cylinders with low compression, try readjusting the valves to just
touching (zero lash) and retest compression.  Sometimes that can really
help.

Ken Wilford
John 3:16
www.vanagain.com
On Dec 15, 2011 9:08 PM, "Skip" <skiplaubach@comcast.net> wrote:

> '84 Westy, 1.9L WBX, Manual Trans
>
> Runnability issues continue.  A couple of weeks ago (after replacing the
> ECU and Temp II sensor, and smooth running for 100 miles and good warm
> starting) the van was sputtering/losing power, then stopped.  Wouldn't
> restart.  Had my second tow with AAA Premium, this time to my mechanic.
>  When we off-loaded the van at the mechanic's, the van restarted...I left
> it with the mechanic to check over.  He identified the usual (hoses that
> need to be replaced, etc.), but couldn't figure out the runnability issue.
>  He has a very good reputation, so I don't doubt his expertise.  So he did
> a compression test on the cylinders.  Results were interesting and I would
> welcome recommendations for further study or repair:  the two rear
> cylinders measured 155 on each side, the two front cylinders measured 65.
>  So, the engine sounds pretty OK and runs OK...sometimes, and I would guess
> that the reason is that the compression is the same on opposite cylinders.
>  So has anyone experienced this phenomenon or can recommend "steps" toward
> a correction?  I stopped my an automotive machine shop today and was quoted
> about $1500 (labor) plus parts (which include cylinders).  BTW, no head
> gasket leaks.  Thank you.
>
> Skip Laubach
> Elgin, IL
>