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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Burman Gearbox Sealing
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<blockquote data-quote="nkt267" data-source="post: 1958" data-attributes="member: 245"><p>The 'drain' plug at the rear of the oil filled B A P box is actually a level plug.</p><p>Richardson says that the recommended amount of oil in the box is '1.1/2 pints.which equals 1.1/4in on the bottom of a dipstick inserted through the filling orifice'.</p><p>I filled my box till the oil ran out of the level plug with 140 grade straight cut gear oil(Morris).</p><p>I had to remove the box to repair the adjuster thread(also the only way I could get the valve lifter plunger out) I doubt if I drained more than about 1/2 to 3/4 pint out of it and the whole inside of the box was well lubricated.It would seem to me that so long as the mainshaft gears splash oil round the box all should be ok.I have just sent off for the correct oil seal for the kickstart shaft as I find the felt washer is not good enough.If the box is over filled it will spew oil out of every orifice it can find.Once it has found its own level all seems fine even cruising at 70.</p></blockquote><p></p>
[QUOTE="nkt267, post: 1958, member: 245"] The 'drain' plug at the rear of the oil filled B A P box is actually a level plug. Richardson says that the recommended amount of oil in the box is '1.1/2 pints.which equals 1.1/4in on the bottom of a dipstick inserted through the filling orifice'. I filled my box till the oil ran out of the level plug with 140 grade straight cut gear oil(Morris). I had to remove the box to repair the adjuster thread(also the only way I could get the valve lifter plunger out) I doubt if I drained more than about 1/2 to 3/4 pint out of it and the whole inside of the box was well lubricated.It would seem to me that so long as the mainshaft gears splash oil round the box all should be ok.I have just sent off for the correct oil seal for the kickstart shaft as I find the felt washer is not good enough.If the box is over filled it will spew oil out of every orifice it can find.Once it has found its own level all seems fine even cruising at 70. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Burman Gearbox Sealing
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