Hi all,

I've just pulled my 83 XT600 apart after having the nut on the end of the crankshaft chew through the seal and some of the crankcase (RHS clutch cover) and very predictably found all, I hope, of the bits in the oil pickup strainer.
I've blown air through the oil lines except for the crankshaft and all seems ok. After cleaning and reasembling the engine and reparing the crankcase cover the engine started with a lot of effort but is running well. Piston/ rings, barrel bearings all seem ok too.
The difference now is that its very hot and very hard to start from cold. The oil tank never even got warm before and is now hot to touch after 15min riding, the crankcase is very hot (can put my hand on it but not for long). oil is flowing back to the tank and after taking it apart again I've found plenty of clean oil in the rocker cover, and everywwhere else. I also found the piston with a film of oil over it. Just wondering how hot it can/should get and if I need to be thinking about getting the crankshaft looked at?
I was thinking rings/ valve guides or something similar but can't figure out the heat.
I have an oil cooler but not a temp guage so sorry for the vagueness.
I've read that the dipstick can get hot enough to melt but I'm reluctant to ride it at all as it never even got warm in the past.
Sorry for the rambling post, am quite stuck.

Cheers.