[TR] TR3A Oil pressure

[John Macartney]

ISTR that hot idle oil pressure of 20-30psi was normal on the four pot engine
when it was new and running on a 20W/50 mineral oil like Duckhams, Castrol and
Shell.
Only use synthetic in the family Kia and Hyundai through necessity.
Jonmac

http://standard-triumph-books.co.uk
>________________________________
> From: Jerry Van Vlack
<jerryvv at roadrunner.com>
>To: Randall <tr3driver at ca.rr.com>; 'car discussion
Sports Triumph' <Triumphs at autox.team.net> 
>Sent: Thursday, 5 January 2012,
11:23
>Subject: Re: [TR] TR3A Oil pressure
> 
>While you are in there also
make sure the oil pump clearances are correct and on the tight side.
>
>-----Original Message----- From: Randall
>Sent: Wednesday, January 04, 2012
9:13 PM
>To: 'car discussion Sports Triumph'
>Subject: Re: [TR] TR3A Oil
pressure
>
>> at hot idle it drops to about 20psi and that
>> continues to
make me uncomfortable.
>
>If it bugs you, try stuffing some new bearing
inserts in it.  You can do the
>rod bearings with the engine still in the car,
takes a half day or so (less
>if you work quickly, which I don't).
>
>I've
even been known to change the main bearings that way, although I didn't
>last
time.  Whether you can do the rear main may depend on which flywheel
>you have
installed; I've always been able to get the cap off but some folks
>say it
won't fit.
>
>After changing the rod bearings, my pressure at hot idle went
from under 10
>psi to around 20-30, which I'm comfortable with for the
moment.  Eventually
>I'll give the engine a proper rebuild, but for the moment
it's running good
>and "ain't broke".
>
>One of my previous TRs showed
basically NO pressure at hot idle when I got
>the car.  DPO evidently never
changed the oil, just drove the car until it
>wouldn't run any more, then left
it in his Mom's back yard and moved away.
>I drove it all summer that way with
no apparent ill effects.  But it was
>badly down on power (especially at lower
rpm), so we put a different motor
>in it the next winter.
>
>-- Randall
>
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