GB gearbox oil seal

[bill.bowers]

Is it possible to remove the mainsheet oil seal for replacement without dismantling the gearbox? Help please!
Bill

[will_curry]

Apart from the tedium of dismantling all the primary drive both the bearing
and the oil seal go in from the drive side and not the inside of the gearbox.

[Mick D]

Hi

Yes it can, remove the sprocket, retaining circlip, spacer and the seal holder will come out with the seal, replace the seal and re-fit, replacing the spacer, which is also the inner sealing surface for the seal, if it shows signs of wear.

Regards Mick

[bill.bowers]

Thanks. I will have to pull harder to get it out!
Bill

[Roger Gwynn]

They can be very tight in the case and awkward to pull out

[Paul Slootheer]

They can be very tight in the case and awkward to pull out

In practice this means you quite often will damage the holder and require a new one…