The equivalent of surgeon leaving a sponge in a patient!!!

-----Original Message-----
From: Bill Knight <bill@NS.ESC.STATE.NC.US>
To: Vanagon@VANAGON.COM <Vanagon@VANAGON.COM>
Date: Monday, August 03, 1998 11:16 AM
Subject: Re: low pressure

>I'll tell you how you can have a clogged screen on a rebuilt
>engine. Several months ago I ordered a rebuilt engine for my
>'84 Westfalia from a reputable engine builder.
>
>After the first several minutes of running it lost oil pressure.
>I went through every diagnosis possible, but it wasn't until
>I decided to drain the oil that I found the problem.  There
>was a shop rag left in the crankcase!  And I'll tell you,
>after being hammered around a while, the rag became finely
>shredded and thus clogged the oil pickup screen.
>
>The engine builder, did try his best to rectify the problem,
>but I never got a satisfactory motor, and ended up
>rebuilding it myself.
>>
>>
>> How can you have a clogged screen on a rebuilt engine?  Maybe too
>much
>> silicone was used? Is it possible that the wrong oil pump
>> cover gasket was
>> used?  This would seriously reduce the pumps output.  It
>> should be the one
>> that is so thin you can almost see through it.  The other
>> possibility is
>> that a wrong sized bearing was used or maybe a cam bearing is
>> missing.  A
>> bad lifter will not cause a pressure problem unless it is
>> noisy.  The oil
>> that flows through the lifters goes through the pushrods to
>> lubricate the
>> rockers.  You should also check the oil pressure relief valve.
>>
>> Dennis.
>>
>>