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TR6 TR6 Oil Pressure

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Somtimes ignorance is bliss: See the dancing bananas here (cause I'm
too lazy to go back to page 1 and get em.)

All right, folks. I got lucky. Installed the pressure relief valve
piston and spring and voila'.....excellant oil pressure... 45-75....
(guesstimate), depending upon running or idling...and I drove all over
the freeways between my home town and a neighboring town 35 miles away;
freeway to idle; freeway to idle....ran fine! Likely drove over 100 miles
in 85 degree weather.....temperature gauge and oil gauge were just fine.


YES!!!

On to the next issues.....tranny and overdrive and interior and hood install.
 
You've inspired me to try those steps with the Spitfire before I consider slipping in bearing shells. What an excellent conclusion!
 
Doug, I guess it's just you and me to celebrate; but, hey, I figure try
the $20 fix before the $200 or, forbid, $2,000 fix.

Also, I ordered two springs; one heavy duty (to increase to high pressure,)
and then the regular, stock spring.

That heavy duty took the pressure to nearly 100 pounds...too high...

The stock spring ran just right.

The heavy duty spring is just a little bit longer than the stock, though.
 
Great outcome. Really nice when the cheaper route works just fine and you discover all of your 'nightmares' are for nought.
 
cow pie!!

Now spend $18. on an oil pressure gauge and be
totally confident of your psi readings.

d
 
poolboy said:
Well here's a Whoopeee from me.
Click to expand...


Thanks to you and the entire group, Pool, my car is
very close to being back on the road.

Hard to tell you how much I appreciate you.
 
Well done,just throw my bit in here albeit after the cure has been found:-Without going into the physics of it , the oil pressure relief valve is designed to regulate the maximum oil pressure,and to let by when that pressure is reached say 75 psi(pressure of oil greater than pressure of spring) below that figure it should remain closed letting the pump build up the pressure and then opening at a predetermined pressure.If the valve does not seat properly,due to wear or contamination,or broken spring then your pressure figures will be affected right across the range.usually if the spring is weak then the maximum registered pressure will be affected and the idle figure not,as the spring still keeping valve closed.Over the years I have seen many problems like this with the relief valve not seating.Not just take it apart check the spring length and put back together as was suggested -the condition of the seat face and valve face are the most important.
 
Appreciate that, Mike. I always suspected the darned thing was not
closing and sealing as it should after it opened, like it kept leaking
off pressure slowly over time. Anyway, I am glad it was what it was...
easy and cheap.

Nice to hear from you.
 
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