Simple way to prime the oil pump

#1
So you forgot the vaseline, or the engine was not started all winter, or you mistakenly simply changed both filter and oil at the same time? Anyway there is oil in the sump, but it does not get to the pump!

Here is the easy remedy, only needs a helping hand and an air compressor:

Filler cap off, air nozzle down there, the usual oily rag and and helper´s hand on top. Let in air. Do not care about leaks, you neither need nor want no more than some 0,02 bar (0,3 psi) to lift the oil 4-6 inches..

Start engine. After a few seconds you have oil pressure.

Mission done!
 
Last edited:

ghce

Well-Known Member
#3
So you forgot the vaseline, or the engine was not started all winter, or you mistakenly simply changed both filter and oil at the same time? Anyway there is oil in the sump, but it does not get to the pump!

Here is the easy remedy, only needs a helping hand and an air compressor:

Filler cap off, air nozzle down there, the usual oily rag and and helper´s hand on top. Let in air. Do not care about leaks, you neither need nor want no more than some 0,02 bar (0,3 psi) to lift the oil 4-6 inches..

Start engine. After a few seconds you have oil pressure.

Mission done!
Is this a method you yourself have tried on the P6B?

Do you also need to close off any other crankcase / engine breathing?

Graeme
 
#4
No, apart from filler cap nothing off (in particular not the filter - you want oil in the engine not on the floor), nothing closed. After all the pressure needed/wanted is nothing more than you (or rather your kid) would need to blow bubbles up a glass of soft drink through a straw.

Learned it by chance two days ago from friend who helped one of his friends after rebuild. Tried it yesterday after pump upgrade and end repair (photos). Worked.

Will from now on use it precautionary each spring.
 

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