Scooterotica

Viton Seals

I see MB's have had seals specially made in Viton.

But Ive been using these seals for Decades and you can get them from any good bearing/seal supplier

Drive side FPM33x50x6AS. These are Viton double lip
Mag side large FPM33x52x6
Mag Small FPM25x42x6
If you add AS on end then youll get the mag ones Double lipped as well

Smiffy

thanks. good tip

get them from allseals on roundtree close mate . quite cheap as well

mark wrote:get them from allseals on roundtree close mate . quite cheap as well

cheers mark, that's the place I was trying to remember to a mate last week...

Damn, just got mine from MB and they only sell the drive side and large mag flange ones AND they're only single lip.

RinB wrote:Viton Seals

I see MB's have had seals specially made in Viton.

But Ive been using these seals for Decades and you can get them from any good bearing/seal supplier

Drive side FPM33x50x6AS. These are Viton double lip
Mag side large FPM33x52x6
Mag Small FPM25x42x6
If you add AS on end then youll get the mag ones Double lipped as well

Smiffy

Hi RinB, Have you seen any improvements over 'Rolf' type seals???

rog60 wrote:Damn, just got mine from MB and they only sell the drive side and large mag flange ones AND they're only single lip.

I could be wrong, but i believe double lipped seals are to suit something like a front hub seal, where an oil or grease seal is required and a dust seal is required from the outside. Double lipped seals are a waste of time in a crankcase.

The only seals that need Viton are the two internal crank seals as no other seal comes into contact with petrol.

drunkmunkey6969 wrote:The only seals that need Viton are the two internal crank seals as no other seal comes into contact with petrol.

I seem to remember being told in the dim and distant that they wear slower than standard seals, I might be wrong though, anyone have any technical data on them?

RobD wrote:I seem to remember being told in the dim and distant that they wear slower than standard seals

By that i presume you mean they last longer?

What sort of technical data did you have in mind?

That's right, wear slower = last longer. As for technical info I was wondering if anyone had definitive info regarding mechanical properties in comparison to the standard rubber seals, abrasion resistance, elasticity etc