Originally Posted by costina
Tom those figures are for a std pump mate BUT as alvyn said oil grade makes a difference
an uprated pump should be around 80 psi cold
But it is not such a good idea to have too much pressure,because all the oil gose to the top quickly and only has a hole the size of 22 mm approx to return to the sump= bottom end failure
if low on oil
These are mine 60 psi cold
32 psi hot at idle
this is on mobil 1 motorsport 15/50
I personally think your oil is too thin
BUT your figures are in spec
thanks...about the oil.. I used the old mob 1 , 5-40 the first 6 years I had the cossie...then I went to gastrol RS 10/60....but after a couplen of years I was told that it was to thick, so I found this mob 1 oil 5/50 and "Oilman" from PF told me it was ok as long as I changed it regulary..and I do...at about 4-5000 km, but yes pressure dropped a bit when I changed it....
About the pump...its just that I cant understand why it has std pressure when the pump is a uprated(I got it myself from Woodford)....could anything be wrong... the engine is a 4wd rebuild only change is that its in my 2wd sapp, and therefor it has a 2wd sump...???