Re: alfa-digest V9 #205 - Cam timing question: 2L engine

[AlfaNeely@domain.elided]

       I have reused the lock tabs.  There is also a bolt with a cotter pin 
through it that keeps the cam in time.  In fact, moving the bolt is how you 
change the timing on the exhaust.  Put a rag under the sprocket to prevent 
dropping small parts down the front of the engine.
       The VVT intake cam is also adjustable.  All you need is a very thin 55 
mm end wrench!  I made one on a mill from an old truck spring.
       Loosen the nut on the end of the VVT and the cam will turn independent 
of the sprocket.  Look closely at the front of the cam and you can see the 
alligator teeth that are the adjustment.
       And, yes, rolling the car forward is one way to tension the cam 
chains.  A socket on the crank pulley is another.

Ciao,
Russ Neely
Oklahoma City


In a message dated 01/22/2003 12:29:41 PM Central Standard Time, 
owner-alfa-digest@domain.elided writes:



> Date: Wed, 22 Jan 2003 10:30:08 -0500
> From: "Damien Gaboury" <dgaboury@domain.elided>
> Subject: Cam timing question:  2L engine
> 
> Well, I tried to keep the process as simples as possible. For my first job
> valve clearance adjustment, I followed Pat Braden's suggestion of simply
> moving the cams without loosing their position on the driving chain.
> 
> Due to a mistake (the chain moved from its original position at the
> intermediate sprocket), I will have to do all the process of retiming the
> cams. So, here are my questions;
> 
> 1) The famous lock tab on the cam, which should be not reused, where I can 
> buy
> such a thing? May I reuse it in the real world ? Is it a generic lock tab ?
> (you have to understand that I am in Northern Quebec, Northern America.Far
> away from any Alfa previous dealer and shop)
> 
> 2) With the VVT on the intake cam, how I adjust this cam. I suppose I will
> have to put it at the right timing and adjust the cam timing only on the
> exhaust cam, is it right ?
> 
> 3) To remove all the play at the crankshaft, I have to put the engine at TDC
> while roiling slowly the car forward in 4th speed. Is it right ?
> 
> Thanks all
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