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#890304 09/08/22 9:58 pm
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M
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Do any of you chaps know how much oil should be in the sump of an A65 engine. I drained the sump, then ran the engine for a few minutes, then drained the sump again. There was 140cc (SRM sump plate) Does this sound about right?

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It'll change every single day, as oil drips more or less slowly past the oil pump gears while the bike is idle. What you quote is probably about right for an A65 with a finned sump plate. Not going to hurt a thing if it's more or less than that.

After years of A65 riding, I've had bikes that would leak a quart into the sump every month, which is about one ounce per day, or one tiny drop per hour. Your oil pump can do this and keep excellent oil pressure while it's running. And I've had bikes that would take 6 months to leak two or three cups into the sump.....

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That's about the right amount for a normally running engine. I've heard 6 oz. quoted.


Mark Z

'65(lower)/'66(upper, wheels, front end, controls)/'67(seat, exhaust, fuel tank, headlamp)/'70(frame) A65 Bitsa.
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Thanks to you both for the replies.

Martyn.


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