Oil circulation procedure

[Terry.C.]

Thanks for the replies Guy's
Thats interesting about the washer. I didn't know it was there so the answer is no I did not replace it. So it looks like another strip down. Oh well que sera que sera.
Many thanks once again.
T

[nevhunter]

You can check it before you go to the trouble of removing the cover and disturbing the timing. Take the Bottom Plate off and use a Plastic tube to Blow in the return Pipe and if it s sealed OK just run the Motor as is. The scavenge Pump is many times the Volume of the delivery one and the return oil is in spurts except just after starting the engine. Nev

[volker.halbach]

After removing the sump plate, you can also attach a piece of clear plastic tube to the copper pipe in the crankcase and put the other end in some oil. Then you will see quickly whether it sucks up oil when you rotate the engine. But if the small washer is missing, I would take off the timing case again. Even if you get some oil return, there is still a risk that some air is sucked in depending on the revs and the temperature of the engine and oil. Waller mentions the possibility of adding two such washers.