[s-cars] sheared crankshaft pulley

[Theodore Chen]

even if the key is showing some signs of stress, it's possible to reuse the pulley properly if you torque the crankshaft bolt correctly, and check that the pulley is still correctly positioned after you've torqued the bolt.

it's the clamping force of the crankshaft bolt that keeps the pulley from spinning on the crankshaft, not the key.  i actually also used loctite green #609 for good measure.

-teddy




________________________________
From: JC <jc at j2c3.com>
To: s-car-list at audifans.com
Sent: Wednesday, January 21, 2009 4:21:16 PM
Subject: Re: [s-cars] sheared crankshaft pulley


just to be clear - people keep saying "sheared pulley" but we're talking
"sheared KEY" here.

agree it's a bit hard to see how you can re-assemble things properly without
key/shaft/pulley being pretty safely in place, but either impact tools would
probably do it, or, re-using a previously compromised key. in non-Audi
experience, I've seen keys and keyways where bad re-assembly was possible
via the key slipping back and wedging such that the sprocket was sort-of in
the right spot and held by the edge of the key, but as long as you are
careful and pay attention and get the pulley well seated with a good key
before torquing this shouldn't be a problem.



>
>  I agree.? I have never replaced a cam or crank gear, no have
> I had one fail.? The clamping force should keep the key from
> ever getting damaged, unless there is work performed with an impact.
>


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