Topic: Help me identify this epoxy mess

[henrikm]

I'm building a 750 (K1) engine. After cleaning all the gunk around the drive sprocket, behold the first class cold weld repair of the P.O.

Can anyone identify what kind of epoxy this is? I was going to powder coat the cases, so I need to make sure the epoxy is going to hold up to the heat.
Worst case I'll try to clean up the worst of the mess and paint it as is. 

[cougar]

Not real knowledged on Powder Coat but I thought it only stuck to metal or metal based items.   ...cougar...

[henrikm]

Not too worried about that, think I can manage to hot flock it. More concerned about it handling the heat.
Have a full powder coat setup, so it would be much easier than messing with paint, but that said I need to get this done, so I might just have to bite the dust.

[beemerbum]

Is this a result of the chain packing up around the sprocket? I hear that happened early on before the advent of better chains.

[henrikm]

Think this is relatively common with "thrown" chains. Bought this bike unseen about 5 years ago, and it has been in storage ever since waiting for a rebuild. I was in India at the time and haven't really inspected it thoroughly before tearing it down now. If you are buying an older bike, inspect the cases around the drive sprocket properly, usually there's a proper layer of gunk.

[754]

It wouldnt matter anyway, under the chain cover..
 What year are the cases, if early try saving them or run as is if they worked..

[henrikm]

The absolutely best thing would be to get them cleaned and welded up properly. Although finding someone who can weld cast alu in my area is going to be a challenge. I only have a DC- tig welder.

Actually looks like it has been welded before someone slathered it with the epoxy. I have had it running without any obvious leaks, so I think I can make it work as is. The problem is that I know that it's there. 

Going to get them soda blasted later this week and re-assess. Will keep you updated.