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jimmymckenna
jimmymckenna
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#829767 11/14/20 12:41 am
Joined: Feb 2019
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Hi all.
I’ve noticed that the chaincase level screw hole bears no relation at all to the recommended oil capacity of about 150cc. The hole is not obstructed, yet with 250cc of oil in the case none comes out of the level hole.
Anyone have any ideas on this?
Bike is a 1970 A50.

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I've only had earlier A65s, without the overflow hole. Never had a problem using the specified 140-150cc of oil (actually prefer ATF).

Have you tried the overflow with the bike on the side stand? Just a thought...


Mark Z

'65(lower)/'66(upper, wheels, front end, controls)/'67(seat, exhaust, fuel tank, headlamp)/'70(frame) A65 Bitsa.
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Maybe the front of the bike is higher than the back, possibly because of different wheel sizes or tyres?

I guess you could try placing the bike on a gentle gradient and see if that helps.

If you still cant get the oil level hole to work just fill it with with the recommended amount, ride around for a bit then drain the oil using the drain screw, hopefully the same amount should come out as went in.


1968 A65 Firebird
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As long as the bottom run of the primary chain is dipping in the oil I wouldn't worry


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Most people with a65's moan about the large amount of oil that comes out of them rather
than little or none, don't worry about it.

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Thanks for your replies - and your interest.
I have noticed that increased oil level = increased oil droolage. I ask myself whether this is due to the chain oiler or the chaincase mainshaft bush seal. Bloody hope not; it’s only done 900 miles since it was replaced during the engine rebuild.


Moderated by  Allan G, Jon W. Whitley 

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