[Vwdiesel] Crankshaft Sprocket Wear

[James Hansen]

Gavrik, I'm not trying to sound like an ass, but it's common knowledge if
you run without a belt cover, you are fortunate that a small pebble hasn't
thrown into the belt and screwed your timing and the valves by causing the
belt to jump a few teeth. This is a definite risk.
If the wear looks enough to bother you, yes replace the sprocket. Losing an
engine over one part you thought you should have replaced would really suck.
-James

> -----Original Message-----
> From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com]On
> Behalf Of Gavrik Peterson
> Sent: Monday, March 08, 2004 2:18 PM
> To: vwdiesel at audifans.com
> Subject: [Vwdiesel] Crankshaft Sprocket Wear
>
>
> I am in the process of installing a rebuilt 1.6 liter diesel engine in
> my rabbit and a friend noticed that the crankshaft sprocket shows
> visible wear on the teeth.
>
> I measured the diameter of this sprocket with a dial caliper and found
> that the center part where the drive belt runs has a diameter that is
> .010 inch less then the outside part where the drive belt does not
> cause much wear.  There is enough difference in diameter that it is
> easy to feel.
>
> I have been running this engine with no drive belt cover for a long
> time.  It appears that this has allowed road dirt to get to these
> components and cause more then normal wear on the sprocket.  Is it
> common knowledge among diesel people that this is a bad practice?
>
> So, is it possible that this amount of wear could increase the
> likelihood of skipping a tooth, and would it be a good idea to replace
> this sprocket?  Or, am I being too fussy?
>
>
> Gavrik Peterson
>
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