jamesmartin
Well-Known Member
it would sound ok 16psi is not lower enough for the light, ive had a few cases were a new oil pressure switch was the answer as
chris-the-gerbil
Well-Known Member
The lights not coming on now - it only did it after the climb. I understand that triggers at 7psi.
I'm tending towards the thermostat not cutting in correctly and letting the oil get too hot when worked hard - I presume these engines have oil jets to cool the piston crowns? For what they cost I'm probably going to swap that stat - get a new pressure switch just because they are so cheap anyway and carry on. I was just expecting to see a little more pressure perhaps at idle, perhaps im expecting too much from it lol.
I'm tending towards the thermostat not cutting in correctly and letting the oil get too hot when worked hard - I presume these engines have oil jets to cool the piston crowns? For what they cost I'm probably going to swap that stat - get a new pressure switch just because they are so cheap anyway and carry on. I was just expecting to see a little more pressure perhaps at idle, perhaps im expecting too much from it lol.
Discodevon
Well-Known Member
Change the oil and filters 5000 miles is pushing it for semi
Cheers
Cheers
chris-the-gerbil
Well-Known Member
I ran an oil analysis when I got back, the viscosity and TBN were well within spec - the oil should be good for at least 10k looking at it.
From what I can tell the oil thermostat appears to be stuffed and doesn't open at all - I've got a spare one here I just need to pull them both out and compare and then fit the new one but I think the problem as others have said is entirely down to insufficient oil cooling.
From what I can tell the oil thermostat appears to be stuffed and doesn't open at all - I've got a spare one here I just need to pull them both out and compare and then fit the new one but I think the problem as others have said is entirely down to insufficient oil cooling.
