A10 gearbox gaskets

[A10 Ray]

Hi all,
            Does the A10 swinging arm gearbox have any gaskets,also what oil is best.
                               cheers.

[JulianS]

Yes it does, one between inner cover and case, one between inner cover and outer cover, one under the steel cover on back of main case and one under the oval inspection cover on the outer case.

I use Morris AG90 non EP gear oil which is said to be safe with phosphor bronze bushes

https://www.morrislubricantsonline.co.uk/golden-film-ag-90-gear-oil.html

[jhg1958]

Ray
I put my gearbox together carefully flattened each mating surface on a piece of glass and used new gaskets. It leaks like a sieve. I plan to remove it and replace gaskets but this time with some sealant.

John

[A10 Ray]

Hi all,
           I would like to thank both chaps for the info,I to intend  to do as john has done with new gaskets which i have ordered,
         the reason asking the triumph pre unit don't use them,
                            once again thanks for the info         Ray

[Slymo]

Made mine out of Flexoid gasket paper 0.4mm with 0.6mm for the  outer and oval cover and use straight 50 in the gearbox although 20/50 mineral is just as good. Straight cut gears are fairly forgiving with oils I'm told.

[A10 Ray]

Hi all,
            just a quick update on the gearbox, having stripped and cleaned the box and flattened all mating surface
    and  new gaskets fitted topped with oil and no leaks also the same for the primary cover which i have fitted the
    Electric start system.

[muskrat]

G'day Ray.
Well done mate.
Report back after 1st ride 
Cheers