Steve,

It may or may not make a difference, but was the case align bored?  It's
been more years (decades, actually) since I last worked on a VW engine, but
I remember something about align boring the case during a rebuild for the
main bearings and I think (I could be wrong) that may affect the leaking
case issue.  Maybe someone more savy with current VW experience can answer
that.

Gene Leone, Worland, Wyoming

When you give a lesson in meanness to a critter or a person, don't be
surprised if they learn their lesson.
-------Original Message-------

From: KRnet
List-Post: krnet@list.krnet.org
Date: 07/19/04 21:11:41
To: KRnet
Subject: @CHECK++ RE: KR> Oil Leak

Well... I spoke with Steve at Great Plains and Dan Deihl. Nobody has ever
experienced the problem I am having. When the last repair was made, we did
coat the gasket with permatex, installed a new flywheel and gland nut from
Steve at GP. THis time most of the gasket was still in place but it still
leaks like crazy. Richard Shirley and I removed the flywheel and mag drive
this afternoon. Here's what we found;

Initial inspection indicated the oil is coming from behind the gland nut
washer and around the dowel pin area. We removed the mag drive and Locking
mechanism for the gland nut. After the last repair, Richard machined this
nifty key lock mechanism with a new mag drive to prevent the gland nut from
loosening up. Before removing the gland nut, the prop hub and flywheel were
checked with a dial indicator and showed .003 run out. When removing the
gland nut we found it to be torqued to only 25 ft lbs. This is the part we
can't figure out. The gland nut was securely locked into place after
torqing to 217 ft lbs the last time it was assembled. The nut cannot turn
once the key is in place and was still in the locked position, however, the
nut was loose??? The dowel pins are well below the surface of the
flywheel. Inspection of the threads in the crank shaft showed they were
flattened a bit but engage the gland nut by around .020. It doesn't appear
that it is jumping threads under load.

The only thing we can do next is a complete tear down. I was dreading
this.... I'll keep you all posted just in case someone else has a similar
problem in the future...go figure I get to be the first!

Thanks for everyone's input...

Regards,

Steve Glover
KR-2 N902G
AJO, Ca



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