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The BSA A7-A10 Forum
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Technical (Descriptive Topic Titles - Stay on Topic)
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Gearbox, Clutch, Primary
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A10 gearbox gaskets
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Topic: A10 gearbox gaskets (Read 902 times)
A10 Ray
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A10 gearbox gaskets
«
on:
09.12. 2023 08:33 »
Hi all,
Does the A10 swinging arm gearbox have any gaskets,also what oil is best.
cheers.
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JulianS
1962 A10
Wise & Enlightened
Join Date: Mar 2017
Posts: 1451
Karma: 29
Re: A10 gearbox gaskets
«
Reply #1 on:
09.12. 2023 09:20 »
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
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jhg1958
Valued Contributor
Join Date: Sep 2019
Posts: 268
Karma: 6
The more I learn I realise how little I know
Re: A10 gearbox gaskets
«
Reply #2 on:
09.12. 2023 18:03 »
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
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1961 Golden Flash S/Arm
A10 Ray
Guest
Re: A10 gearbox gaskets
«
Reply #3 on:
09.12. 2023 22:55 »
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
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Slymo
Valued Contributor
Join Date: Jul 2018
Posts: 387
Karma: 3
Re: A10 gearbox gaskets
«
Reply #4 on:
14.12. 2023 00:57 »
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.
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NZ
A10 Ray
Guest
Re: A10 gearbox gaskets
«
Reply #5 on:
03.01. 2024 09:06 »
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.
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muskrat
Global Moderator
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Join Date: Jul 2009
Posts: 11032
Karma: 132
Lithgow NSW Oz
Re: A10 gearbox gaskets
«
Reply #6 on:
03.01. 2024 09:25 »
G'day Ray.
Well done mate.
Report back after 1st ride
Cheers
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'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7
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The BSA A7-A10 Forum
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Technical (Descriptive Topic Titles - Stay on Topic)
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Gearbox, Clutch, Primary
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A10 gearbox gaskets