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Re: TR3A Low Oil Pressure

To: "M. W. Jordan, Jr." <mw_jordan@mindspring.com>
Subject: Re: TR3A Low Oil Pressure
From: fred thomas <vafred@erols.com>
Date: Tue, 07 Jul 1998 19:06:39 -0700
Cc: triumphs@Autox.Team.Net
References: <199807071722.LAA01189@triumph.cs.utah.edu> <35A2916A.2843287D@mindspring.com>
M. W. Jordan, Jr. wrote:
> 
> I have a 59 TR3A that I purchased out of a barn about 3 years ago.  It had 
>been
> sitting for about 7 years, but the sheet metal, frame engine and all seemed 
>in good
> shape.  Several months work turned it into a runner.
> 
> But the oil pressure seems very low once it has been running for a while.  It
> starts out about 60 lbs cold but after 20 miles or so will only show about 
>35-40
> lbs at 3000 RPM, and drops t about 1-15 at idle.  The engine does not burn 
>oil, and
> the engine temperature does not seem excessively high - usually runs about 
>160-180
> when warmed up and maintains constant temp readings.
> 
> I suspect the main bearings are worn and could use replacement.  I have read
> several comments about replacing with the engine in the car, but could use 
>some
> practical guidance here.  I would prefer not to pull the engine at the present
> time, but will do so if the pain of dropping the oil pan and doing it from 
>below is
> overwhelming.
> 
> Would appreciate the guidance of some who have done the task recently.  I am 
>on the
> digest version, so email privately if you prefer.
> 
> Thanks
> 
> M. W. Jordan, Jr.
> Marietta, GA

I agree with Greg P., drive it, use 20/50 oil, if you want a good 
indication do a compression test. I think your oil is to light/thin. If 
it ain't broke don't fix it, drive it.


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