I was trying to sort out a slight leak of 2 stroke oil from the engine this morning and found that there was a slight nick in the small pipe from the pump to the carb manifold.
No problem I had some clear pipe the same diameter.
Now I know for sure that the pump is properly bled but I opened the bled screw anyway to see if it would draw some oil through this new clear pipe. None whatsoever. No problem I though it will soon pull some through and there is plenty of oil still in the engine.
I started it up and oil has started to move along this pipe but it is at a very slow rate. Probably at the rate that it needs to inject it into the engine. If the pipe I had fitted had been original I would not have seen this and I'm sure that the engine would be short of oil by the time it makes its way through.
I am now filling the pipe with oil before I reconnect it, I suppose priming is the word.

Any thoughts on this. Am I just been over cautious or should priming the pipe before fitting be the norm??

I fill the pipe from the pump to the intake rubber with oil before I fit it. I suspect this isn't neccessary when you have rebuilt the engine and it has so much oil slopping around anyway to last until the pump pushes it through. Though you can't be too careful .

If you have just played around with the oil pump then I should think it is mandatory

knackeredMk1 wrote:I fill the pipe from the pump to the intake rubber with oil before I fit it. I suspect this isn't neccessary when you have rebuilt the engine and it has so much oil slopping around anyway to last until the pump pushes it through. Though you can't be too careful .

If you have just played around with the oil pump then I should think it is mandatory

Thanks Knackered
The last thing I want is another seized engine