List,
Years ago (1989) I remember talking with a mechanic at the loacal Nissan
dealership. He had mentioned that he had been able to straighten heads
by clamping them on a bench with spacers then heating them to bring them
back into alignment. This sounds very shade tree, but fortunately I've
never had to worry about this particular problem.
What doesn't make sense to me is that if a head is warped and you shave
the bottom, wouldn't the cam alingment and the top be warped also? This
would me that you would need new bearings/and have the cam alined bored?
Dana "now w/real job w/o car sig" Nojima
datsunmike wrote:
> Only if a head is very warped will it pay to have it partially straightened
> using heat. They will have to cut it just the same.
>
> Make sure you see the work of the machine shop. Aluminum heads need a much
> finer "tooth" than cast heads. The smoother the cut the better.
>
> Mike
>
> ----- Original Message -----
> From: "Ken Pearce" <ken__pearce@hotmail.com>
> To: <datsun-roadsters@autox.team.net>
> Sent: Thursday, October 18, 2001 1:45 PM
> Subject: Good machine shop in upstate WA or Van BC?
>
>
>> Well, I'm finally getting around to fixing my leaking head gasket. (or is
>> it my intake/exhaust gasket?) At any rate, I'm pushing water through the
>> tailpipe and that ain't good... The head has to come off anyway so that I
>> can measure it and shim the cam towers. (parts guys, let me know if you
>> have shims...)
>>
>> Question:
>>
>> Where can I take my U-20 head in upstate WA or Vancouver BC to have
>
> someone
>
>> check it to see if it's straight? I've also heard of shops capable of
>> heating up a warped head and straightening it. Anyone? Anyone? Beuhler?
>>
>> I want to make sure when the head goes back on that I don't have the same
>> problem in another 6000 miles. (Carl J. feel free to give me a $
>> guestimate on having you do it...)
>>
>> Cheers!
>>
>> Ken Pearce, 68-2000
>> Bellingham, WA
>>
>> _________________________________________________________________
>>
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--
Dana Nojima, Ph.D.
HYSEQ, Inc.
Cell Biology Group
675 Almanor Ave.
Sunnyvale, CA 94086
(408) 746-4567
noji@sbh.com
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