The Triumph Dolomite Club - Discussion Forum

What i would want to see especially if I didnt trust the absolute gauge reading is the oil pressure building to about 3k rpm and then going no higher as the relief valve opens.

The numbers I would want to see on a sound motor would be no lower than 20 at hot idle and maxing out at 60 psi.

I would try a different gauge of you can.

Jonners

_________________
Note from Admin: sadly Jon passed away in February 2018 but his humour and wealth of knowledge will be fondly remembered by all. RIP Jonners.

Thanks Jon, tried an alternative gauge and that gave identical results.

Thinking about the early Jag XK engines that were fitted with a screw adjuster that effectively tightened up the PRV spring so you could set the pressure the spring released at, I dismantled my pump again and fitted a washer below the lower end of the spring. Seems to have worked as the hot pressure at 2650 rpm (60mph in top overdrive) is now 55psi, rising to a peak around 60.

Seeing as I also appear to have at long last managed to seal all the leaks around the pump and transfer housing, I think I'll leave it at that! Pity it isn't as easy as on an XK engine where all it takes is removing a domed nut from the underside of the pump to access the spring - 10 minute job!

Geoff

That soubds totally like a result. If you get that sort of pressure then there cant be much wrong internally and the jackshaft side thrust witll be acceptable.

Good job.

Jonners

_________________
Note from Admin: sadly Jon passed away in February 2018 but his humour and wealth of knowledge will be fondly remembered by all. RIP Jonners.