Author Topic: engine breathing  (Read 499 times)

Offline baz

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Re: engine breathing
« Reply #15 on: 03.05. 2020 10:52 »
I have left my bike sitting for around 3 weeks
And although it was not fully wet sumped I thought I'd start it
The oil tank had dropped to maybe halfway
The bike immediately pumped the oil back to the oil tank, with nothing coming out of the breather pipe

Online Colsbeeza

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Re: engine breathing
« Reply #16 on: 04.05. 2020 05:56 »
Hi Baz,
It seems that you don't need the scavenge side of the oil pump. Your breather is doing the job instead. If no oil, will the scavenge gears wear excessively or overheat.? if so, does it matter?
Col
Colsbeeza
Australia

Offline baz

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Re: engine breathing
« Reply #17 on: 04.05. 2020 06:16 »
The oil returns to the oil tank in exactly the same manner
I removed the oil tank cap to watch the return flow of oil ,there was no difference
The reed valve only opens and returns oil when there is excessive oil in the cases it has no effect on the feed or scavenge of the oil pump