On Thu, Jan 21, 2010 at 6:41 AM, David Lieb <72spridget@gmail.com> wrote:
> > And contrary to what people say, timing is not compromised with a worn
> chain, assuming the tensioner is in order.
>
> The tensioner should not affect your cam timing. It is taking up slack
> on the "push" side of things to keep the system a little quieter. On
> the "pull" side there is nothing to affect the effective distance from
> crank tooth to cam tooth other than chain stretch.
> David L
>
> Exactly, the chain stretch affects the angular relationship between the
crank gear and the cam gear, as the chain stretches the cam gear is
retarded. Whether this is enough to cause a change in engine performance is
debatable; however, don't forget that this will also retard the distributor,
a small amount of scatter can have a significant effect on performance. The
higher the state of tune of the engine, the more noticeable the effect.
Hal
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