[T3] stock cam advice

[Jim Adney]

On 21 Feb 2011 at 19:31, David wrote:

> My question is about my cam. It's a stock 4 rivet -2 cam that looks in
> pretty good shape, but this is a rebuild so I should get a new cam and
> followers. 

Cams are a problem, so I've always reused the original cams and 
replaced the lifters. Unless there's something clearly amiss with the 
old cam it will be okay, but buy your lifters from a reliable source, 
like Berg. There are lifters out there that are too soft and they 
wear out VERY quickly.

After the align bore, it's possible that the crank center line 
changed slightly. If this happened, your old cam might be too tight. 
You must check its mesh with the crank gear. Do this by installing 
the crank in the left case half along with the cam, then turn the 
crank thru 2 revolutions. If the mesh is too tight, the interference 
will lift the cam out of its bearings.

Of course, to see this effect you have to turn the crank CCW as seen 
from the rear of the engine (as installed in the left case half.)

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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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