jamesmartin
Well-Known Member
yes that is the question, if filters and hose ok likely its okBut is the question, am I getting too much suction? i.e. A blockage?
yes that is the question, if filters and hose ok likely its okBut is the question, am I getting too much suction? i.e. A blockage?
This is bloody frustrating!yes that is the question, if filters and hose ok likely its ok
TBH I haven't Steve. Thank you.I guess you have seen all this View attachment 210765
Sorry, meant second and third from top, but can probably discount third one down now.TBH I haven't Steve. Thank you.
I think it probably best fits the two descriptions at the top of the second page.
About 3 bar when hot. 3.5 bar when cold.I know this thread has been going a long time but what is your actual oil pressure when engine running flat out?
About 3 bar when hot. 3.5 bar when cold.
I'll check the pressures in the morning to make sure I've got them right.That seems low to me - from when SWMBO's 300 oil pressure switch let the oil out, and I fitted a gauge till a new switch arrived - pressure cold at high RPM was 60 psi, so 4 bar - I don't know the relief valve pressure setting, but isn't it about 70psi ?
I'm almost hoping I've got those figures wrong, cos they don't help- unless the "missing" pressure is going to the turbo and causing the problem ?
1.76 bar at idle
Any data on what the 300Tdi Garrett turbo oil pressure is meant to be?
it would need to hold 7 litres and wouldnt be long filling so best you havent tried itCouldn't work out a way of having a catch can under the outflow pipe. It's really tight for space there on the 300Tdi. The outflow pipe is short and inflexible, so you can't bend it to reach a catch can. Result is that I can't very easily do that test.However, I think I've proven that I haven't got crankcase pressure pushing the oil back up to the turbo.
It's a brand new outflow pipe and it looks as though it's installed without a kink it in now. It's not a very wide pipe though. So, all I can think to do is find a bigger diameter pipe. No idea if they are available! Or, custom make on or get one custom made!
I'm running out of options and starting to run out of ideas.![]()
Any data on what the 300Tdi Garrett turbo oil pressure is meant to be?
that isnt a problem you havent excessive pressureAny data on what the 300Tdi Garrett turbo oil pressure is meant to be?
Yep, that's the conclusion I came to !it would need to hold 7 litres and wouldnt be long filling so best you havent tried it
I presume they must be able to cope with a range of pressures. So I'm now obviously wondering if my engine is producing a higher oil pressure than the range the turbo can cope with?Does it not take the engine oil pressure?/
Cheers
Feckthat isnt a problem you havent excessive pressure
obviously not 4 bar isnt high and your not there the vm turbo runs at 90psiYep, that's the conclusion I came to !
I presume they must be able to cope with a range of pressures. So I'm now obviously wondering if my engine is producing a higher oil pressure than the range the turbo can cope with?