[s-cars] RE: oil pump failures audi/vw

[QSHIPQ at aol.com]

Oh yes.  When oil pumps go out on vw microbus/early vanagons, they put 300+psi thru the oil filter, which blows out the seal, and the engine goes bybye if customer waits too many seconds...

I also had the above happen on my 81 scirocco rally car.  I was running FL1A filter, blew out the seal first thing in the morning on a couple cold days.  At the time I had a connection at Fram, who told me I was lucky to catch it ("hey 3 filters in 2 days, wtf?").  Trivia from that conversation:  Standard oil filter rubber rings are designed for a max pressure of 300-325psi, at 326 failure rate becomes 99% certainty.

Scott Justusson
QSHIPQ Performance Tuning



In a message dated 3/3/2005 8:33:24 PM Eastern Standard Time, Theodore Chen <tedebearp at yahoo.com> writes:

>
>--- QSHIPQ at aol.com wrote:
>> Well considering what Mark did with his S2, I'm not sure even the dry sump
>> operates upside down or crumpled.  I will say that the Group A S2 didn't
>> carry a dry sump, OR an accusump.  I'll freely admit my admiration of the of
>> accusump resevoir in concept and design, I'm a bit awed (and chuckling) at a
>> dry sump for a street/occasional track car, even a full blown race audi for
>> that matter.  Audi oil pumps are not known to be a failure problem at all,
>> even with cavitation.  In fact, they usually last longer than the rest of the
>> motor.
>
>are there any cars that have oil pump problems?  i mean oil pumps, not
>oil pump drive issues.  the oil pump is usually a simple gerotor design,
>and is so ridiculously overlubricated that it should easily outlast the
>engine.  the only time it stops working is when debris gets past the
>oil pickup screen and jams it.
>
>-teddy
>
>
>
>    
>        
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