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Re: [Fot] Oil pressure and tolerance on valve clearance

To: Tim Murphy <timmurph@fastbytes.com>
Subject: Re: [Fot] Oil pressure and tolerance on valve clearance
From: Greg And Alison Blake <ablake2@austin.rr.com>
Date: Tue, 3 Jun 2014 09:10:47 -0500
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I am at 80psi from 3000-6000.


> On Jun 2, 2014, at 9:54 PM, "Tim Murphy" <timmurph@fastbytes.com> wrote:
>
> What oil pressure is typical or desired for the TR4 engine?  When the
engine
> is up to temperature, at 3000 to 6000 RPM (typical racing revs) we are
> running 50 PSI.
>
> I was just checking the valve clearance and again I've wondered why a
> tolerance is never given for the clearance.  The only time I've ever seen a
> tolerance given was for a 1975 Honda Civic 1200cc engine I rebuilt and the
> clearance was +0.010 /- 0.001.  that made sense but it's the only time I've
> seen it in a manual or any place else.  Does +0.001/-0.001 really make a
> difference or am I missing something here?
>
> The questions are mainly an engineering curiosity.
>
> Thanks,
>
> Tim Murphy
>
> 1961 TR4 #317
>
>
> [demime found a multipart/alternative section which it tried
> to parse but could not find any section which it could render. Please send
plain text.]
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