When I took my 67.5 2000 head in to be worked on, the machinist that worked
on it was not familiar with overhead cams, or he did'nt care about what he
was doing. He milled the head, almost to a point of eliminating the
combustion chamber. I have installed two head gaskets, and the most
important thing is you need to have a machine shop make you cam tower shims.
Otherwise your timing chain will have too much slack in it, and possibly
will break, or at the least, jump time. Neither of which would be
acceptable. In the long run, it may be cheaper for you to purchase a new,
or used head and start over.
-----Original Message-----
From: Robert.Long@CSDInc.com <Robert.Long@CSDInc.com>
To: datsun-roadsters@autox.team.net <datsun-roadsters@autox.team.net>
Date: Friday, October 01, 1999 8:37 AM
Subject: R1600 Head Stuff
>Hi,
>
>I just had the head from my 1600 milled. It mic-ed to 3.175. What is the
>minimum?
>
>I assume this is below tolerance, because I put it back on, without the
>gasket, and finger tightened the
>head bolts, and the pistons are making contact, when I manually crank it.
>
>Is there anything I can do to save this head? It's in pretty good shape,
>minimal pitting, valves look good.
>
>What about a shim, or double gasket?
>
>Thanks for your ideas - Robert Long - 67.5 headless 1600 - Albuquerque, NM
>
>
>
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