Sludge

[Pat]

Backflushing the screen seems like a good idea if possible.
Especially if the motor is so gunked it fouls the replacement screen too.

Re a static flush- One method I heard of is filling the engine completely(to
the valve cover cap) with strait diesel.  Probably 4-5 gallons on the
average engine.  Let it sit for a while then drain.  Hopefully your crank
and cam seals are up to the task..

Personally, I skip the expensive flushes and run 50/50 diesel and motor oil
just to the full mark on the dipstick, let idle for 5-10 minutes- no load.
Drain and repeat as necessary.
This technique would probably clog a VAG screen too, but at least the engine
will be clean.  
And if pan removal is necessary, I second the brake cleaner.  The good stuff
will wash a lot of crud away and it's just so darn satisfying watching all
the junk wash away and expose clean metal.


-----Original Message-----
From: quattro-bounces at audifans.com [mailto:quattro-bounces at audifans.com] On
Behalf Of Huw Powell
Sent: Wednesday, May 29, 2013 9:43 PM
To: quattro at audifans.com
Subject: Re: Sludge

I like to spray brake cleaner in while the pan is open, but that's just 
for fun.  It seems to me the key is come up with a way to backflush the 
oil pickup screen.

- Huw