[s-cars] crankshaft rebuild

[djdawson2@aol.com]

 I asked because when I rebuilt my engine, I sent the crank in to have it looked over... with the instructions to "turn if needed."  The message came back that there could be no turning of those crankshafts.  I didn't pursue the "why" of their response, because they said it was fine anyway.
 
So I guess I'm curious if it is really even an option.  I had made the assumption that it was, but my shop said no.  So was it just them, or can you really not turn a 2.2 crank?
 
Dave
 
-----Original Message-----
From: calvinlc at earthlink.net
To: djdawson2 at aol.com; yumyjager at gmail.com; giannandrea at mindspring.com
Cc: s-car-list at audifans.com
Sent: Fri, 4 Nov 2005 08:37:51 -0700
Subject: RE: [s-cars] crankshaft rebuild


I think the problem here is not the lack of machine shops who can do it, it's the lack of demand for the service.  I just don't hear of many Audi engines needing this type of internal surgery before the rest of the car has long ago fallen apart.  A crank is a crank, as long as you know what the metal treatment and manufacturing process (i.e. cast or forged, how was it hardened, if at all) a good machine shop can easily figure out how to turn it properly.  The only problem is there isn't much experience with BTDTs on something like this so that is a risk....but given the cost advantage I would be tempted to at least attempt it, provided you can find someone with the proper bearing sizes to support the end product.
--Calvin