Thread: URGENT URGENT!! PLUNGER CHANGE, NO OIL PRESSURE!!!

Either pull the oil pump apart and fill with vasolin
Or remove your dizzy and find a old long screw driver cut the handle off and put in in a electric drill and engage the oil pump drive where the dizzy came out of
operate the drill to get oil pressure up

Originally Posted by rangieman

Either pull the oil pump apart and fill with vasolin
Or remove your dizzy and find a old long screw driver cut the handle off and put in in a electric drill and engage the oil pump drive where the dizzy came out of
operate the drill to get oil pressure up

Can it be done by pressurising the oil cooler lines at all?? Was contemplating a kind of 'force feed' to it then trying to start it...

Originally Posted by LOVEMYRANGIE

Can it be done by pressurising the oil cooler lines at all?? Was contemplating a kind of 'force feed' to it then trying to start it...

I do not have enough qual,s to answer that one

Originally Posted by rangieman

Either pull the oil pump apart and fill with vasolin
Or remove your dizzy and find a old long screw driver cut the handle off and put in in a electric drill and engage the oil pump drive where the dizzy came out of
operate the drill to get oil pressure up

Do as the above ..... DON'T risk shagging about with oil pressure

Do you need a hand???

Originally Posted by mike 90 RR

Do as the above ..... DON'T risk shagging about with oil pressure

Do you need a hand???

May do. Dont have a pump gasket though. Drop on over if you want!

Are you sure the plunger is not jammed open?
Why did you replace it?
The plunger and tube get a wear pattern and a ridge can form on the tube. A quick and gentle hone may fix it.
It should not empty the oil pump when you take the plunger out.
Regards Philip A

Have heard these engines need the oil pump to be reprimed, as there is a chance they will not 'pick up' when re-started. Do not risk it if the gauge shows no pressure, happened to a local here.....needless his fully rebuilt engine is now on the scrap heap. Good luck.

Originally Posted by PhilipA

Are you sure the plunger is not jammed open?
Why did you replace it?
The plunger and tube get a wear pattern and a ridge can form on the tube. A quick and gentle hone may fix it.
It should not empty the oil pump when you take the plunger out.
Regards Philip A

I took the pump cover off as I thought it may be well worthwhile checking the gears anyway seeing as they have never been changed.
The plunger showed signs of wear particularly at the end where it had some light grooves in it. Interesting thing is that when you look at the plunger installed in the cover from the inside face, you can actually see the spring thru a gap in the back. I am at work atm and havent got it here with me, but I will take a pic of it tonight and post it here.
By removing the retaining plug, it allows all the oil to drain out of the gears! You dont even need to take the plunger out!

Reason I took it out was due to a lower than normal oil pressure and it IS the original spring too. The spring has shrunk by a bot 4mm over the new one and physically has a lot less tension.

The surprising thing is that although this engine has done 240k from new and has not been touched, the oil pump and gears are absolutely immaculate! The only signs of wear on the pump cover is from the drive gear and is nothing more than light brushing marks on it!
Am getting a gasket today and will repack it with vaso tonight.