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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Gearbox oil level rising/Primary falling
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<blockquote data-quote="tim welsh" data-source="post: 54797" data-attributes="member: 172"><p>Hello All,</p><p>Just got back from an excellent French Rally, and doing a service on the Rapide found a strange fault. Gearbox oil level at top of dipstick ( I always run it at the bottom), and primary drive almost empty. I use ep90 in the gbox and atf in the primary, and what I drained out of the gearbox had a reddish tinge, so probably the atf. Nothing else seems wrong, engine oil ok, cant find anything loose, but haven't stripped primary yet. I remember a thread by Hugo Myatt about this, so checked the engine breather (modified series d cap with a reed valve built in) and the sealing of the Alton (allows primary to breathe) , both ok. I haven't changed anything recently, and bike was running fine all the way. I run a multiplate clutch , in same atf as primary(small hole drilled through) What "connects" the primary with the gearbox? I can only think of the seal in the gearbox cover plate. Any ideas anyone before I take too much apart? Many thanks for any help . Tim</p></blockquote><p></p>
[QUOTE="tim welsh, post: 54797, member: 172"] Hello All, Just got back from an excellent French Rally, and doing a service on the Rapide found a strange fault. Gearbox oil level at top of dipstick ( I always run it at the bottom), and primary drive almost empty. I use ep90 in the gbox and atf in the primary, and what I drained out of the gearbox had a reddish tinge, so probably the atf. Nothing else seems wrong, engine oil ok, cant find anything loose, but haven't stripped primary yet. I remember a thread by Hugo Myatt about this, so checked the engine breather (modified series d cap with a reed valve built in) and the sealing of the Alton (allows primary to breathe) , both ok. I haven't changed anything recently, and bike was running fine all the way. I run a multiplate clutch , in same atf as primary(small hole drilled through) What "connects" the primary with the gearbox? I can only think of the seal in the gearbox cover plate. Any ideas anyone before I take too much apart? Many thanks for any help . Tim [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Gearbox oil level rising/Primary falling
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