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Re: rover 4.6 oil pump priming
Posted: Sat Jul 28, 2018 10:38 am
by ChrisJC
garrycol wrote: ↑Fri Jul 27, 2018 11:34 pm
There is no such thing as a Thor oil pump - that is an induction system. All 4.0/4.6 engines Gems or Thor or whatever have the same oil pump - it runs about the same pressure as the old camshaft driven pumps - about 30 -35psi when warm on a good engine.
Garry
Not true. Here is a screenshot of the relevant page from RAVE. The pump may be the same, but the valving is different.
Chris.
Re: rover 4.6 oil pump priming
Posted: Sat Jul 28, 2018 10:40 am
by ChrisJC
DaveEFI wrote: ↑Fri Jul 27, 2018 5:01 pm
ChrisJC wrote: ↑Fri Jul 27, 2018 3:56 pm
I think the Thor oil pump runs over 50psi which is epic.
Chris.
True. But no RV8 is prone to running big end bearings, so the original pump more than adequate? Interesting that few cars are fitted with an oil pressure gauge these days.
I suspect it was when BMW got involved with the engine they couldn't believe the numbers so decided to up them. But I agree, no point (unless they were compensating for thinner oils)
Chris.
Re: rover 4.6 oil pump priming
Posted: Sat Jul 28, 2018 12:59 pm
by garrycol
Well doesn't show up on the oil pressure gauge - I changed my 101 3.5 to a 4.6 and the gauge reads the same pressure in the same conditions for both engines.