oil seal

tatters · Post by **tatters** » 20 Jun 2007, 14:48

Here's one for those of you that do your own work on your bikes.
what is involved in sorting my oil leak from the front sproket ?
is it a home job or pay someone ?
and has anyone bought one of those workshop manuals from leasure trail? and does it cover said leak ?

this bike is costing me a bloody fortune.......
am determind to sort it out and register it on the road as want to experiance the good old days of trail riding.
NOT FAIR.

d5aul · Post by **d5aul** » 20 Jun 2007, 18:29

The Oil leak is most likely coming from the seal over the output shaft, Remove the front sprocket, providing the chain is not too tight, you should be able to do this without removing the chain, Behind the sprocket you will find a spacer that should slide off the shaft, chances are the spacer will have a groove worn in it from the seal, the seal will also be worn. You should be able to prise the seal out with a screwdriver, you will possibly destroy it in the process, be prepared to buy a new seal!
I managed to get a new seal from a local bearing supplier, the new seal was not the same size as the original one but 1mm smaller on the inside diameter, this made it tighter on the worn spacer!
When you replace the spacer, check that there is an O ring on the Output shaft before the spacer goes on, this seals the spacer to the shaft.

The LT manual is available to download from this site, click 'manual' in my signature to take you there!

Post by **Jonorow** » 20 Jun 2007, 20:12

I replaced mine a few weeks back, just remove the front sprocket and use a small screwdriver and hit it across the seal. this will deform it and you can hook it out. when replaceing the new one wrap some tape around the splines so as not to damage the new seal and tap it home. Job done and will be about 5 mins.
Jon

tatters · Post by **tatters** » 20 Jun 2007, 21:40

you star d5aul.
jonorow- where did you get your seal from mate ?
as usual you lot are rescuing me,
thanks

Post by **Jonorow** » 20 Jun 2007, 21:49

I got mine from leisure trail but if i remember rightly there are dimentions in the what fits what post, so you may get them from a bearing supplier or the part number is .........unknown is i didnt input it onto my list, bugger. but it was only £7.11 + p&p

tatters · Post by **tatters** » 20 Jun 2007, 22:10

again I thank you.
have no bearing people round here that i know of so will do the leasure trail route and will post the part number for all.

tatters · Post by **tatters** » 23 Jun 2007, 16:34

have tried to find the recomended gearbox oil (SEA10-30) to no avail.
have picked up some silkolene 10-40 race oil instead, is this oil ok for these or should i try harder to find proper oil ??
What does everyone else use ??????

purple rooster · Post by **purple rooster** » 23 Jun 2007, 17:48

the silkolines fine good stuff in fact ,its what i use , remember not to over fill it 600ml is enough

tatters · Post by **tatters** » 23 Jun 2007, 18:05

sorted. thanks for that. used to use it 15 years ago , just never knew if it was still the stuf to go for.