Vehicle & Technical > Range Rover
NO OIL PRESSURE ...SOB
Range Rover Blues:
If it was low oil pressure I'd suggest trying 20w/50, the second number is the viscosity hot and that's a noticeable drop, 50 to 40 but a new 15w/40 oil should be up to the job. LR changed the spec partly because of the availability of 20w/50 and partly because modern manufacturing allowed the use of thinner oils with no detriment. AnyV8 can run on20w/50 and that's what I recommend when available.
However, I don't think that's going to solve your problems. Fingers crossed it's the PRV or wear in the oil pump, the condition of the pump cover will give you an idea. When replacing the pump cover, fill the pump with vaseline to prime the pump.
If it's not a problem there you could have very severe wear on the crank/big ends, only allowing the pressure to drop as the engine turns. This would explain why you can get the pressure back up with your drill attachment. That would mean at the least dropping the sump and shells out to check, possibly then a regrind depending on what you find. For a 3.5 you'd be as well off buying a S/H runner, even if you opt to rebuild that one at a later date.
So let's hope it's the pump then [-o<
diesel_boy:
it can b 1 ov 2 fings like some of the others say ur p r v or ur oil pump cover if it the valve just take it owt n clean it could b full of slugy type poo easy job big nut on the side of ya pump tek it out n ull av a spring n ball bearin then take off the oil pump cover 8-16point bolts fidely sod's then look at the cover u got in ur hand if its scored up jus get some emery cloth n rub it down flat agine cus the pumps dont realy wear out its the cover then fill ur pump wiv vasaleen n chuck it all back2gether n watch ur oil pressure go back up n only use 20/50 in it n ya wont go rong been there done the got the t-shirt :wink:
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