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Re: timing chains and stuff

To: a roadster list <datsun-roadsters@autox.team.net>
Subject: Re: timing chains and stuff
From: Gordon Glasgow <glasgow@serv.net>
Date: Thu, 26 Aug 1999 21:34:54 -0700
Why not skip the chains and fabricate a gear drive like the exotics used to 
use? Can you
imagine what a sound that would make when combined with a set of Solexes? The 
poor guy
ahead of you would think all the demons of hell were climbing up his tailpipe!

Toby B wrote:

> Gordon Glasgow wrote:
> >
> > Have you read what Smokey Yunick found out about cam movement in a running 
>engine?
> > Very interesting. Because of the variable forces at work on the cam 
>(pressure on
> > different sides of the cam lobes from the rockers), it does NOT have the 
>nice
> > smooth forward motion that we tend to visualize.
>
> OK, I KNOW this is me having too much time to think and not enough time
> to wrench, BUT:
>         Has anyone thought about coming up with a different set of cam drive
> gears for the 2L?  Those tiny little sprockets take a bunch of force,
> and as they wear, let the cam slop around as Gordon was saying.
>         So the little (very little) design engineer in me says- why not go to
> bigger gears and a longer chain?  It would wear less, keep the cam timed
> tighter, and probably not cost too much more than OEM parts are running
> these days.
>         Of course, one would have to redesign the whole front of the engine,
> but that would be half the fun... I guess
> I always wanted to play engineer,
> Toby

--
Gordon Glasgow
Renton, WA
http://www.gordon-glasgow.org



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