Need some advice, TT250 oil leak!

**Damz** · 8th December 2007, 16:52

Hi guys,

Just got my first bike about two weeks back, an '81 TT250. Sent it straight into the shop and got the timing chain replaced, got it out of the shop a couple days back.

Went out for the first ride today, and its got a lovely bloody oil leak! Nothing major, maybe two drips a second? Still enough to make my ride a worrying one..

Still had a little play, but came home smartly to check it out.

Took off the cover (fark! look all that silicon!), gave everything a good squirt with brake cleaner, let it dry off, then started it. The pink circles in the pic are where the oil was seeping out of. Looks like its already a patchy job to be honest..

PIC! ---->>> http://i9.tinypic.com/6k7iy4i.jpg

My question is, what can I do! My first thought is to clean the silicon that is already there, and put more on! But I dont know how long thatll hold..

Any thoughts welcome!

**tri boy** · 8th December 2007, 19:33

" Devcon" is your freind. Can be purchased from engineering outlets.(normally not on the shelf). Can be machined,filed etc. Two pack NASA product from the 80's.
I've used it to patch/repair way more serious faults than that. Follow the directions, and all will be sweet.

**tri boy** · 8th December 2007, 19:45

Since I'm such a nice guy,(and the bourbons havn't totally wasted me).......

**Damz** · 8th December 2007, 19:50

Originally Posted by tri boy

Since I'm such a nice guy,(and the bourbons havn't totally wasted me).......

Brilliant thanks heaps for the pic!! I was searching the devcon site, they make heaps of products!

Awesome, thats what Ill use then, glad to know it can be fixed!

Would you recommend taking all of the old silicoone/putty stuff off, or just put the devcon over all the stuff thats there already?

Cheers bud

**Damz** · 8th December 2007, 19:54

Actually, I have some of that "knead-it" stuff, wonder if that would be any good?

**tri boy** · 8th December 2007, 20:01

Knead-It is cheap shit. But Devcon costs. Ask/ring around some repair shops to see if you can scab some off them.
All previous sealers must be removed plus paint around the area. It can be shaped with a wet rag while it's curing, but after that it solid as steel.
Try Knead-It. But if it fails go to Devcon.

**Sully60** · 8th December 2007, 20:02

Originally Posted by Damz

Actually, I have some of that "knead-it" stuff, wonder if that would be any good?

It does seem to make a mechanically strong repair, but it does tend to weep oil after a short time. Good for temporary repairs but for what you're doing go with the Devcon I say.

**Damz** · 8th December 2007, 20:45

Good as gold.

Thanks guys, will go into bay engineers monday morning. How much is it do you remember?

I bought another devcon product about a year ago, to make some engine mounts, it was $115 for 500gms! But hey, if it means I can ride without worrying, its gotta be worth it!

**xwhatsit** · 8th December 2007, 20:55

Sweet, Devcon, will track some down. The RS is leaking from the head (`They all do that, Mister').

**Wired1** · 8th December 2007, 22:21

Yes this is a common problem with these bikes. When they are new there is a screw beneath all that shit that holds the clutch lever rod in place but when you snap the chain it often wraps around this part of the crank case and smashes the screw out. If you are really unlucky it will have smashed a hole in the crank case as well.
I would chip all that stuff out and have a good look at the original wound. If it's just the clutch screw then clean it thoroughly and use the two part plastic metal stuff they are talking about above and let it cure before starting the engine as the oil pressure will find a way out.
Good luck.

**Damz** · 9th December 2007, 20:09

Iv temporarily fixed it with the silicon I have on hand so I could take it out today, but will do it properly when I can get my hands on the devcon product. (lets be honest, I wont do anything more until it starts leaking again, and then Ill think to myself, I knew I should have listened first time round...

)

**Wired1** · 9th December 2007, 20:13

What did it look like under all the old silicon?

**Damz** · 9th December 2007, 20:17

I didnt take the old stuff off, just patched it with more goo. Having said that, it held up nicely today, but will more than likely leak again soon.. As soon as it does, Ill do it properly and let you know how ugly it was under there