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Oil Pressure sender testing

Posted: 02 Nov 2011, 21:16
by ninja.turtle007
I'm having problems with oil pressure. Well according to my oil pressure gauge I am. I have always had really good pressure at over 40 psi. But today it dropped to 0 on tick over and went up to 15 psi at 2k rpm.

I presume the resistance can be measured with a multimeter? Or is it a case of swapping the sender unit as I don't want to spend £125 on a pressure tester?

Re: Oil Pressure sender testing

Posted: 02 Nov 2011, 22:25
by ewenmaclean
Hello,

when this happened to me it was because the oil pick up strainer was blocked - you can indeed test the resistance - the values I believe are 10-180 Ohms for 0 to 10 bar (assuming it's VDO or compatible) - I'm not sure that's linear but might give you an idea.

Hope it's just an electrical fault.

Ewen

Re: Oil Pressure sender testing

Posted: 03 Nov 2011, 07:40
by Aidan
can lend you a wet pressure tester that will fit a wbx and I believe will also do those dirty diesels as Clive used it on his

Re: Oil Pressure sender testing

Posted: 03 Nov 2011, 10:34
by ninja.turtle007
Aidan wrote:can lend you a wet pressure tester that will fit a wbx and I believe will also do those dirty diesels as Clive used it on his

Thanks, Aidan. Just ordered a tester from EBay, was only £40 delivered. Worth having in the tool kit.

I will give you a ring at some point to discuss gear box mods on the Westy.

Re: Oil Pressure sender testing

Posted: 07 Nov 2011, 17:33
by kevtherev
This is why I fitted a wet gauge in the cab.
No erogenous readings :D

Re: Oil Pressure sender testing

Posted: 07 Nov 2011, 20:43
by ninja.turtle007
Tester turned up, seems to be very good value.

This is at tick over
Image

And this is at 2k RPM
Image


I'm happy with that. :ok