If you cut the pistons, check for ring groove wear first.
Enjoy the Ride.
Phil
Jim Tyler wrote:
> a. Get another head
> b. clearance the head to fit the pistons by flycutting and or hand grinding.
> (expensive and compression will be high)
> c. replace the pistons with flatops
> d. if the R16 pistons aren't cracked (they often are) , pull them out put them
> in a lathe and make them flattops. (Easy compared to the head machining).
> works fine.
>
> Jim Tyler
> Topless Datsun
>
> ----------
> From: Robert.Long@CSDInc.com[SMTP:Robert.Long@CSDInc.com]
> Sent: Friday, October 01, 1999 11:13 AM
> To: datsun-roadsters@autox.team.net
> 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
--
Philip Erickson Phone: (858) 622-7963
Associate Scientist
Medicinal Chemistry
Compound Management FAX: (858) 678-8277
Agouron Pharmaceuticals, Inc.
4215 Sorrento Valley Boulevard San Diego, CA 92121
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