Thundercat oil leak problem

[Ste]

After Danny had the crash at Cadwell on his Thundercat it has been leaking oil, and there has been oil noticable on the right hand side of the bike around the footpeg and exhaust.

None of the parts wore through, and there wasn't any oil leaking noticably after the crash, but it is leaking oil (not much really, but it is leaking some) after the crash and wasn't before.

After looking around it and trying to work out where it could be coming from, only place left that it could be coming from we think is from the engine cover that is damaged, as shown in the photo. Is it called a crankcase cover? Just need to be sute, so that Danny doesn't order the wrong part in error. We did attach something under the overflow tubes so that if it was coming from there it would be caught and would know it came from there, but not a drop in the bag under them. Anyone got any ideas as to any possible suggestions as to where the oil could be leaking from? Also can someone confirm or correct that the damaged part is called the crank case cover.

Few photos of it:

This shows the damage as it was at Cadwell right after the crash. Since then, the footpeg has been replaced, the R&G mushroom and it's bolt have been replaced.
This one shows the area where there is oil on from the oil leak, you can see it on the exhaust and on the footpeg area.
The engine cover bit which was damaged in the crash and which Danny and I think must be where the oil is leaking from.
Shows underneath the crankcase cover, and you can see there is some oil there, which does suggest more than the oil is leaking form the damage cover.

[Ian (GPX)]

Hi Ste / Danny,

Could be 1 of 2 things for the oil leak.

1/ The gasket could of got crushed and stopped it from acting as a seal.

2/ The engine might have a hair line crack due to the impact of the crash.

Replace the gasket behind that cover 1st, this is the cheapest option to try, might also be worth replacing that cover to as it could be distorted out of shape a little, if this does not stop the leak, it's time to look elsewhere.

[Robby]

I'm with Ian here, most likely problem is a crushed gasket. However, to check for a hairline crack clean all the surrounding area up and hold the engine with some revs on it for a couple of minutes, and see if you can see any new oil seepage. The higher revs give you higher oil pressure.

I'd replace the cover and the gasket, seeing as the cover needs replacing now anyway. That is the crankcase cover, the big one next to it is the clutch cover.

[Danny]

Thanks for the help, I'll order those parts then.

[Git]

The hammer in the first picture is far too small, consider yourselves told off!