[TR] Oil Pressure

[dlylis at gmail.com]

I paid a lot of attention to clearances when I rebuilt my 3A motor. I have 55 at hot idle and can clearly see the bypass valve function at 75 lbs when I wind the motor over 3500. 20/50 oil. 
New gauge so I am reasonably confident of the numbers.
There, I have showed you mine! ;-)
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-----Original Message-----
From: "Andrew Uprichard" <auprichard at comcast.net>

Date: Wed, 16 Sep 2009 05:35:52 
To: 'Randall'<tr3driver at ca.rr.com>; <triumphs at autox.team.net>
Subject: Re: [TR] Oil Pressure


List:  thanks to all who replied.

As usual, I like Randall's caveat.  My newly-rebuilt engine was reading 50
at idle and 80 at 3000 rpm:  I dialed it back by adjusting the set-up on the
filter head and now it reads 30 and 50 respectively.  My other car has a
much wider span of pressures over the rpm range, so I think I'll get the
gauge checked out as well.

Andrew

-----Original Message-----
From: triumphs-bounces at autox.team.net
[mailto:triumphs-bounces at autox.team.net] On Behalf Of Randall
Sent: Wednesday, September 16, 2009 2:54 AM
To: triumphs at autox.team.net
Subject: Re: [TR] Oil Pressure

> Before I give away my numbers, what range (idle to full 
> acceleration) should
> one aim for with oil pressure on a TR3?

while I agree with Tony's numbers, I have seen TR3 engines survive with much
less.  In fact, I drove a whole year with an engine that showed no pressure
at all at hot idle, and no more than 30-40 psi at hot cruise with the
heaviest oil I could find.

I'll also throw out my usual caveat : Before you get too concerned over what
the gauge reads, make sure it is accurate.  Old gauges frequently lie.

Randall
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