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Kick Start Oil Seal Problem

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Bike is 1959 Model 50.

I have replaced the kick start oil seal twice now. The seal works for a few months and then it begins weeping again. Any ideas on how i can reolve this in a more permanent way ?

Mike

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You may be able to machine the seal location for one of the supposedly better “x” section o rings -also polish the shaft in the area of seal contact . A lot of work/ expense so it may be easiest to do what I do - LWI . Live with it - wipe it off and monitor the oil levelin the gearbox frequently.

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There is another solution, you can buy one of the later Mk3 Commando ones, that have better oil seals are part of the outer cover.

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I fill my horizontal box until oil begins to flow out of the level plug hole.  The box has no O-ring  or lip seals, and weeps oil from every shaft.  I don't worry about it.  If I pull the level plug out, it still passes oil.  The quantity of oil weeping from the box is insufficient to be concerned about.  It prevents corrosion of the castings.....

Paul

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Use an old 'o' ring off the bottom of your pushrod tubes. It's a really tight squeeze and it'll be stiff as hell for a while but once worn in it'll be fine and should last for ages. I've used this dodge on both my ES2 & Dommi for years now and neither leak from the kickstart.

Cheers.

Ian.

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I stuck an x-ring in. Put silicone sealant into the groove behind it as the groove is quite deep. Works pretty well.  I bought a pair from one of the three big Norton suppliers but haven't needed the other. Must be cheaper in bulk...but I don't want such bulk! They do one for the gear lever also.

 

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