There's no known spec for that distance. Plus it would require tearing down the
engine to measure it, so it has no more value than measuring the head thickness.
You're right about the lash pads, but variable-thickness lash pads aren't
available for the roadster unless you have the valve stems modified to accept
L-series retainers.
Gordon Glasgow
Renton, WA
-----Original Message-----
From: owner-datsun-roadsters@autox.team.net
[mailto:owner-datsun-roadsters@autox.team.net]On Behalf Of Ronnie Day
Sent: Thursday, July 26, 2001 6:13 AM
To: Gordon Glasgow; Roadster List
Subject: Re: Cam chain noise...again
>Gordon Glasgow
> Sounds like your oil pressure is dropping off as it warms up. What is it
> showing
> on the gauge? It still souldn't touch under any circumstances if (a) the cam
> towers are shimmed enough or (b) the tensioner is shimmed enough.
Is there a spec for the center to center distance between the jackshaft and
the cam? Might be tough to measure even if there is, but it seems that would
be the definitive measurement.
Also I'd think that if you shim the cam towers you'd also need to increase
the lash pad thickness by the same amount?
FWIW, Ron
The ACL Group
Arlington, Texas
(817) 572-0873
ronday@home.com
ronnie_day@acd.org
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