

| Subject: | Re: Engine Advice Needed |
| From: | Don Hanson |
| Date: | Sat, 24 May 2014 11:25:43 -0700 |
Thanks, Mark....I learned something there. It never occurred to me that the adjusters themselves could be worn...but now that you've pointed that out, I can certainly see the possibility...no, even likelyhood...of those adjusters getting worn or bashed flatter than before in just one spot...especially on a motor that had a big angle at that junction of moving parts. I've never heard of a WBX motor having 60psi oil pressure at warm idle... On Sat, May 24, 2014 at 10:34 AM, mark drillock <mdrillock@cox.net> wrote: > If it was in my driveway the test would now be to loosen the valve > adjusters a full turn on that low reading cylinder. Then compression > test that cyl again. > > At this point I would pull the 1 plug, test the compression again to get > a new base reading and since the other plugs are still in, then remove > valve cover, loosen 1 adjuster for that cyl exactly 360 degrees. Test > compression, loosen the other adjuster 360 degrees, test again. The > reason for 360 degrees is that the adjusters get flat spots worn into > them over time and a fraction of a turn loosening can actually bring a > high spot into position and then the clearance is actually tighter > rather than looser. Having 2 new adjustors on hand might be good too so > you can replace the adjusters if mushroomed or pitted. > > Mark > > > > Loren Busch wrote: > >> In a '90 Westy, stock 2.1L WBX with 185k miles, auto tranny >> >> Recent compression test is 150, 145, 135, 70. Number one is 70. >> So, two questions. >> How long can I drive with this condition before I have major problems? >> And second, what is my best solution to this. >> BTW, oil pressure is good, 60 psi at idle warm. >> >>
Have something to add on this topic today? Revive this thread in the forum »