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Re: TR4 oil pressure

To: Giancarlo Brignolo <brignolo@sutmyn.com>
Subject: Re: TR4 oil pressure
From: Andrew Mace <amace@unix2.nysed.gov>
Date: Thu, 4 Dec 1997 13:07:53 +0500 (EST)
Cc: Scions of Stanpart <triumphs@Autox.Team.Net>
This was sent to me. Anyone else care to comment to Giancarlo?

On Thu, 4 Dec 1997, Giancarlo Brignolo wrote:

> This is my question:
> 
> I have a 1963 tr4. The engine has been rebuilt 5,000 miles ago, this was a
> full rebuild, including oil pump.
> I use castrol 20W-50. Looking at my oil pressure gauge, it shows 60 at idle
> and 90 on the freeway. But, if i'm driving in the freeway for an extended
> period of time, more than 30 minutes, my oil pressure drops from 90 down to
> about 70, and if I get off the freeway and am idling, my idle pressure is
> 40. I have checked many times my oil volume, and it was always full. 
> This happens every single time without fail.
> Is this normal? Should I worry? What is the cause?

Those oil pressure readings sound well within range to me. I'm copying the
Triumphs e-mail list, in case others have any further insight.

--Andy

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