LCGB Forums

I've done a few of these in the past... no problem

But this one has the better of me so far... such a tight fit...

Italian layshaft, quality rear bearing and rolf seal... it's sooo tight...

Tried immersing in boiling water for a while, applied a little grease to outer and inner faces...no go!!

any ideas/suggestions would be gratefully received!!

David

What about putting it in the freezer for a while.

i'd be more inclined to try to soften the seal. Try using an air dryer (on the seal) and get it more pliable.

Plenty of grease as well.

just fitted a hub oil seal today, mainly needed something to push the inner lip over the bearing edge, something not too hard or sharp. used one of those white plastic plant marker thingies it has a pointy end and curved edge, perfect!. the bearing was fitted to engine with layshaft and in bike so couldn,t use a drift.

Yes it seemed the inner was the issue... Will give that a shot.... Thank you

Thanks guys

There is also a specific tool to fit the rear hub bearing seal,
right and top.

i'm guessing the two outer types go over the layshaft end?

Yes for tool 60405.
The other one, 59331,is for fitting the inner bearing track to the crankshaft.

I use a piece of plastic pop bottle and grease to slide the seal in.

Wack wrote:I use a piece of plastic pop bottle and grease to slide the seal in.

hi, Wack,... could you elaborate a bit on that for me?

Thanks

Yes, just cut a strip out of a litre bottle of pop( thinner plastic than a small bottle) wrap it around the layshaft and bearing inner track, grease and slide the seal over it with your thumbs. Once fully in, pull the sleeve out. This way there's less chance of rolling the seal and flicking the spring off.

Wack wrote:Yes, just cut a strip out of a litre bottle of pop( thinner plastic than a small bottle) wrap it around the layshaft and bearing inner track, grease and slide the seal over it with your thumbs. Once fully in, pull the sleeve out. This way there's less chance of rolling the seal and flicking the spring off.

yes! I get it now and it is the inner part that rolls over!!
thank you!

reading this and A.LO's other thread today ,I've now got a sneaky feeling that I fitted my oil seal the wrong way round last week

Dayum ..........I'd better go check ......and I was feeling all smug up until now

Oilseal rule - Spring always faces the thing you want to stop getting out or the highest pressure