datsun-roadsters
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Re: (no subject)

To: pielr@knick.net
Subject: Re: (no subject)
From: "John F Sandhoff" <sandhoff@compctr.ccs.csus.edu>
Date: Mon, 20 Dec 1999 10:12:50 PST8PDT
Jimmy asks:
> Is there any adjustment in the timing chain guides?...
> i have tons of timing chain slack...

If the head has been milled, you need to add shims under the cam towers
to compensate. I know Stan Chernoff sells various thicknesses of
shims. Check the head thickness (just use a good steel machinist's
rule for a pretty close idea). Gordon Glasgow reports standard head height
to be 4.528-4.530 and shims necessary if milling over .030 (note that
1/32 of an inch is .03125, so you don't need fancy tools to get a pretty
good idea).

Look closely at the camshaft gear. The teeth should NOT come up to a
point; rather there's a bit of a 'flat spot' at the tip. This may help you
determine if these parts were replaced. Chains and gears are a chunk
of change - in the $600 range (without guides!) so it's possible that
they were 'overlooked'. I have a new set you can look at for
comparison, if you want to drop by.

-- John
     John F Sandhoff   sandhoff@csus.edu   Sacramento, CA


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