I meant to add, if you repair/change the radiator, when you refill the coolant, make sure you properly bleed all the air out of the cooling system following the rave manual.
I didn't get all the air out once and had severe overheating very quickly.
Once you get the air out, and running well, you will be able to investigate any possible gasket issue.
I'm hoping it's just the radiator!
Cheers, Pete.

