Vixen Oil Pressure

[Ren32]

Hi all,

I think I have an oil pressure problem on my car (curently under debate in Engines forum) but can anybody here suggest an approx figure, as a guideline, that I should be expecting on the gauge when the engine is hot??

Engine is a newly built 1600 crossflow.

Darren.

[Ren32]

heightswitch said:

Firstly is your guage accurate?? Seen many that give spurious readings.

also if newly re-built have you primed your oil pump etc. Is the pump a std one or new and is it a high pressure or std pressure?

Min acceptable at 700rpm is 8.5 lbf/in2 oil at 80 degrees
Min acceptable at 2000rpm is 21 lbf/in2 oil at 80 degrees

warning light will light up at 6 lbf / in2

Excess pressure when relief valve opens is 35 -40 lbf / in2

The crossy is not a high pressure engine.

Neil.

Hi Neil,

Got about 60lb on the gauge (high pressure pump) when cold at idle.
Got about 10lb on the gauge when hot at idle which will raise to 20lb max when revved?
The Gauge is an unknown quantity I'm afraid.

I'll rig up a pressure switch/lamp to eliminate a gauge fault.

Thanks for the advice.

Darren.

[Ren32]

The pump is brand new from Burtons.

Last week when I started looking into it, I had 40lB cold at idle and about 8lB hot at idle, raising to about 12lB max when revved.

My first thought was to bleed the capillary tube, which I did with no change. Second thought was to change the pump (as the one I was using was of unknown origin). So I ordered a HP pump from Burtons. Hence figures are now slightly up but still varying massively between hot and cold.

I think I have another gauge kicking about somewhere, I better get looking for it!