Thread: which oil filter 3.5 carby engine

IIRC, a Z9 (garden variety falcon filter) or the physically shorter Z89.

Yep. I use a Ryco Z9.

yep okay good im using the right filter but what about the oil pressure dilemma.
from peter

It sounds to me like your sender for the gauge is dead. Maybe some gunge has blocked it.

You haven't mixed up the sender wires by any chance? Although if the oil light goes off then it should be correct.
Any mechanic should have a mechanical gauge that they can plug into your oil pressure light sender position and see the actual pressure.
Regards Philip A

Try tapping the gauge....

yep thanks fellas, overnight the oil pressure gauge went back down to zero. I took rangie for a good drive to warm everything up, I thought maybe there is still some petroleum jelly unmelted in the oil pressure relief valve, the gauge goes up to number three now so theres no problem with oil pressure itself, but when I turn the car of the pressure gauge still reads number two. where as before the work it went back or down to zero, also whilst I had the sump, oil pump cover,oil pick up tube,and rockers off I used compressed air to blow back through oil pump to clear any debry, I might unscrew the pressure sender and check for blockage.
thanks from peter

To be honest I haven't used petroleum jelly in an oil pump for many years. On a Rover the best bet is to make a tool to spin up the oil pump with the distributor removed. After a minute or two on the power drill there's no part of the lubrication system that doesn't have oil up to it. On an engine with a different setup you can just remove the oil pressure switch and pump a litre or two of oil into the galleries with a hand pump.

yeah thanks beauty,i will try this trick next oil change as I need to replace the O ring on the dizzy anyway, what are the dimensions of the tool you use to stick down dizzy hole and prime the oil pump.
thanks from peter