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Subject:Re: Engine Advice Needed
From:OlRivrRat
Date:Sat, 24 May 2014 14:55:00 -0600

Do some WWW research on "AirBound Hydraulic Lifters" ~ Interesting stuff ~

Here is 1 find ~ go to "My conclusions" near the bottom for the Brief

http://www.syncro.org/boston_bob-hydrauli-lifter-lore.html

On 24 May , 2014, at 12:25 PM, Don Hanson wrote:

> 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.
>>>
>>>