Leaky MK3

Post by **Cupid Stunt** » 08 Jul 2007, 23:20

My MK3 has developed an oil leak, it appears to be coming from the output shaft (though I've yet to take it apart to inspect properly)
Whilst there I also notice that the front sprocket if flapping about on the shaft as though the inner splines on the cog are worn out

Any advice, tips recommendations as I gotta get the right parts and get her back on the road

Assuming it is the output shaft seal, is it easy to replace ?

Thanks

tatters · Post by **tatters** » 09 Jul 2007, 11:06

hello cupid.
for once I might be able to give advice on a CRM,
have just changed mine a couple of days ago, so here goes.
two retaining bolts on the sprocket are the first thing, I put a screwdriver in one of the teeth and turn the sprocket till the chain locks the sprocket.
Then turn retaining plate(washer with teeth) a millometer or so and pull it of.
slacken the chain(back wheel) and you should be able to just pull the front cog of, if not remove the front chain gaurd(two bolts in front of the cog) and remove the chain fro the cog.
For removing the seal I used a small electrical screwdriver(just prise it out) and it almost fell out.
When you put the new seal on put a piece of tape round the spline and just slide on the seal( might need a gentle tap to secure).
job done, seal part number is on what fits what section(page 4 i think)
Only took me five mins which means a very easy job.
You'll see if there's any damage to the spline when it al apart.
hope this helps

Post by **Cupid Stunt** » 09 Jul 2007, 13:45

Thanks tatters

I must admit I posted in haste and unlike me I didn't bother to search first
Found numerous answers to the same question

Got the bits ordered so hopefully I'll be back on the road fairly quickly

tatters · Post by **tatters** » 09 Jul 2007, 14:53

i would say "good luck" but you shouldn't ned it. hope your spline is ok !

mickstoy · Post by **mickstoy** » 09 Jul 2007, 21:45

cupid your front sprocket needs to have play in it or your chain will fall off when it shakes about (panic over it aint knackered)

Post by **Cupid Stunt** » 09 Jul 2007, 23:26

Cheers Mick, I was worried bout it as I've never seen one that flaps like that before, all the bikes I've changed sprockets on they've been fixed solid

mickstoy · Post by **mickstoy** » 10 Jul 2007, 17:42

no worries
i was thinking the same thing when i noticed play in mine

Post by **Cupid Stunt** » 11 Jul 2007, 17:45

Bits arrived, job done, very easy

Got a new chain as well as sprockets, the old one was a 110 link so I bought a 110 to replace it

DOH !
Silly bugger previous owner was running a 525 chain ????
So now teh new one is just a fraction to tight to get it on the first notch of the snail cams, had to file a new notch in the cams to make sure it doesn't rotate whilst riding, oh well, no real problem and it will fit better with my road wheels too as they have a 42 tooth rear sprocket

"Triple S" chains I use, I've used them before on my CCM's and have never had to adjust one or had one break, damned good they are

slider · Post by **slider** » 12 Jul 2007, 07:41

i cracked a link on a sss chain,probably bouncing it off a rock.took the offending link out and replaced it and as cupid says haven't had to adjust it yet and its done well over 1000 miles-bargain!!

Post by **Mudfacetony** » 13 Jul 2007, 08:26

Can one of you guys point me in the direction of a supplier of triple s chains please (north East or midlands)

Post by **Cupid Stunt** » 13 Jul 2007, 11:23

Try here:

http://www.riderz.co.uk/product_info.ph ... cts_id=349

slider · Post by **slider** » 13 Jul 2007, 14:20

cough,cough,shameless plug

Post by **Gwyn** » 13 Jul 2007, 14:25

[b]slider :[/b]
> cough,cough,shameless plug

Agreed

slider · Post by **slider** » 13 Jul 2007, 14:29

checked your price for a 520/112 (bigger gearing than std) and its £8 cheaper than i can get it locally,bargain get one ordered tony

do ya do a club card??

Post by **Gwyn** » 13 Jul 2007, 14:56

[b]slider :[/b]
> checked your price for a 520/112 (bigger gearing than std) and its £8 cheaper
> than i can get it locally,bargain get one ordered tony
>
> do ya do a club card??