300tdi oil pressure

[ross501]

the oil light has come on on my disco has anyone any suggestions why this could be have changed the pressure switch also should oil come out the hole where the switch goes in could it be a head gasket gone had the turbo fail over xmas  the oil light has come on since


got the head off would bent push rods affect the oil pressure ?????

[Range Rover Blues]

Not quite sure what you have asked there, but the pressure switch is fitted into an oil galery so the hole it goes into should have oil coming out of it as pressure when the engine is running, obvioulsy this is not clever but you can fit a pressure guage in that hole.

Bent pushrods :? shouldn't effect oil pressure.

Failed turbo,perhaps as the oil galery for the crank also ooils the turbo, if the turbo is passing too much oil then it will keep pressure right down, that's not good.

However with the head off you will find oil coming out of a small hol in the front of the block, the gasket then restricts this hole a lilttle more.  This is ther oil supply to the head, if it's not restricted then agian you will get no oil pressure.

[ross501]

i have put the new turbo on and only done about 40 miles now the oil pressure is low when i had the switch out no oil came out the hole

[stageonesimmo]

Sounds to me very much like a lack of oil pressure caused the death of your 1st turbo and its now getting worse.....

Could be a number of things - main bearing wear, worn oil pump or blocked galleries/drillings.  Try some flushing oil through it and a slightly higher grade of oil, (what are you running now by the way?),  to see if that improves things

[ross501]

15/40 oil  think i will order a new oil pump and do that while its apart

[ross501]

how easy is it to change the oil pump on a 300 tdi