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Pullers on a 20T

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Pullers on a 20T

Post  rob spence on Fri Oct 13, 2017 10:33 am

Hi, are any pullers needed to get to the crank seals on a 20T?

rob spence

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Crank seals

Post  kerabo on Fri Oct 13, 2017 12:10 pm

You don't need anything special.
On one side you need to remove the drive sprocket and if your chain has no split link you may need to remove the clutch and that can stick a little.

The other side you have the alternator. This should come off easy but if the rotor is tight just lever gently from both sides.

It won't be easy removing the seals but if it was me I would drill very small holes in them close to its outer edge and screw a self taping screw in and lever out with that.

Getting the seal runners back can be tricky without turning the seals, I would make s guide from a thin plastic bottle

Ken
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kerabo

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Re: Pullers on a 20T

Post  rob spence on Fri Oct 13, 2017 12:12 pm

Stout advice...many thanks.

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Re: Pullers on a 20T

Post  rob spence on Fri Oct 13, 2017 12:23 pm

Hi Ken, is there a gasket at the crank case mating surfaces...or sealant etc ?

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Gaskets

Post  kerabo on Fri Oct 13, 2017 1:09 pm

No gaskets there.
Make sure the surfaces art flat. I normally rub them on some production paper until they are flat. I use instant gasket but you MUST clean everything that squeezes inside away. Or use Wellseal.
The only gasket on any of my bikes is the head gasket
You don't have to split the engine to do seals in fact you could do them with it in the frame .
Ken
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kerabo

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Re: Pullers on a 20T

Post  rob spence on Fri Oct 13, 2017 1:20 pm

Thanks again Ken, as a matter of interest which instant gasket do you use?

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Gasket

Post  kerabo on Fri Oct 13, 2017 1:34 pm

I always use Locktite instant gasket from Halfords you can get colours and silver don't
Show.
I forgot to say that if you use it on the barrel joint make sure it don't restrict the transfer ports. That could be one place you may want a gasket as it can also be a spacer on some engines.

Ken
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Re: Pullers on a 20T

Post  rob spence on Fri Oct 13, 2017 1:37 pm

Thanks Ken...all this info is very usefull!

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