[Vwdiesel] Camshafts ---- ( missing key mystery )
jhsg at sasktel.net
Thu Mar 4 23:32:49 EST 2004
Don't sweat it. I'm pretty sure that the key is a remnant of the camshaft
blank manufacturing process- used to index the lobes when grinding.
However, your cam sprocket has to be loosened to take up differing belt
lengths when installing a new belt, or the cam timing will be off a tad in
relation to the crank, hence, no keyway possible. remember, the cam
sprocket is the last thing in the train to be tightened. Have Danish
engineers have come up with an adjustable keyway that they haven't told us
> -----Original Message-----
> From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com]On
> Behalf Of H.Hagar
> Sent: Thursday, March 04, 2004 5:22 PM
> To: vwdiesel at vwfans.com
> Subject: [Vwdiesel] Camshafts ---- ( missing key mystery )
> I had to look deep in my Teacup for this one.
> The camshaft sprocket slip problem.
> Here it is , its coming in clear now . Mark Shepherd was so paranoid
> he took to over-tightening the bolt. Val Christian said he had one slip
> that was installed at the factory. (was some of them a result of turning
> engine with socket ?) I said I was flabbergasted having rubbed
> elbows with
> Germans for many years , let me tell you they pin even radio knobs.
> The cams I have here does indeed have a slot for a woodruf key. But
> the sprockets have no slot.SO it is important to make sure the sprocket
> does not slip.How to tell ? did it slip ? next time. Make a
> timing mark under
> washer . Piece of cake with an electric marker.From now on all
> mine will be marked.
> 33 foot pounds according to my Bentley, on bolt.Sounds reasonable to me
> looking at taper.
> Did I use the bolt for turning engine ? yes but I could see
> keycut in shaft
> so I figured it was keyed.
> I tried to call VW on my dial phone , but they did not answer.
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