I put my rebuilt TR6 engine online recently. It was rebuilt several years
ago and then sat idle during the rest of the restoration. I would drive it a
mile or two, every so often. This year I finally licenced and am now using
frequently. Now it has perhaps 800 miles on the new engine. As with other
rebuilds, all new insides and bearings etc. My coolant temperature is always
in the lower third of the guage. Radiator is new. Oil is clean and I have
the external rocker oil feed pipe installed.
At cold startup pressure is over 100 psi
at warm idle 45-50 psi (900 rmp)
at highway speed warm engine 75+ psi hot days, 80-85+ on cold days
The past few days it has been 90 degrees (F) in Montreal. I noticed that the
idle pressure had dropped to 45 psi with a warm engine at 950 rpm.
I have noticed that the oil pressure is much more governed by the external
temperature than I expected. That says something about why MOSS offers an
oil cooler with a thermostat.
Mark Hooper
72 TR6
-----Original Message-----
From: Graham Stretch [mailto:technical@iwnet.screaming.net]
Sent: Tuesday, June 19, 2001 12:40 PM
To: Triumph List
Subject: Tr 6 oil pressure question.
Hi Folks
This chap sent me this tech question. Could some of you please tell him
whether it is ok or not, I am not that familiar with the oil pressure
readings
that come from a fully reconditioned 2.5 engine never having had one!
Please cc him as he is not on the list.
Thanks for your time!
Graham.
----- Original Message -----
From: Peer Andersen
Sent: Sunday, June 17, 2001 1:35 PM
I have rebuilt a 72 Tr6 engine. The rebuild included all new oversized
pistons, turned crankshaft and all new main and rod bearings. The head was
also gone over. A reground camshaft and all new lifters. On start up the oil
pressure was 75 psi. but after warm up I only had 25 psi at 850 RPM. At 1000
RPM the pressure was 45-55 PSI. Is that normal oil pressure on a rebuilt
engine?
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