Hi All,
Well its been a while since I have posted a message on here. mainly because my range has been as good as gold..... until now
18 months ago I built a brand new engine for my Range. She is a 4.0 litre non gas..
Last night when I got home from a long run the oil light flickered a few times. This morning she made a hell of a rattle when I started her, but it did clear instantly. The oil light has shown itself again.
I have removed the oil pressure switch and put a oil pressure gauge on the system and run the engine.
The results are not good.......
at 750 rpm (tick over) I have 0 - 8 psi of oil pressure
at 1000 rpm - 21 psi
at 1500 rpm - 35 psi
at 1750 rpm - 40 psi
at 2000 rpm - 45 psi.
These were all taken with a warm engine....
I have checked the obvious and the oil level is spot on.
I have read through the Rave manual and it states the oil pressure should be 29 psi with a cold engine at idle, and 40 psi @ 2400 rpm.
Has anyone had faulty pressure relief valve. My thought was if it was stuck open then the oil pump could not keep up with the demand on a open system. Or am I looking at a oil pump failure!.
When the engine was built. everything was replaced with new.
Any help or thoughts would be appreciated.
Thanks
Bryan
Well its been a while since I have posted a message on here. mainly because my range has been as good as gold..... until now
18 months ago I built a brand new engine for my Range. She is a 4.0 litre non gas..
Last night when I got home from a long run the oil light flickered a few times. This morning she made a hell of a rattle when I started her, but it did clear instantly. The oil light has shown itself again.
I have removed the oil pressure switch and put a oil pressure gauge on the system and run the engine.
The results are not good.......
at 750 rpm (tick over) I have 0 - 8 psi of oil pressure
at 1000 rpm - 21 psi
at 1500 rpm - 35 psi
at 1750 rpm - 40 psi
at 2000 rpm - 45 psi.
These were all taken with a warm engine....
I have checked the obvious and the oil level is spot on.
I have read through the Rave manual and it states the oil pressure should be 29 psi with a cold engine at idle, and 40 psi @ 2400 rpm.
Has anyone had faulty pressure relief valve. My thought was if it was stuck open then the oil pump could not keep up with the demand on a open system. Or am I looking at a oil pump failure!.
When the engine was built. everything was replaced with new.
Any help or thoughts would be appreciated.
Thanks
Bryan