My cat is overheating seems like an airlock, but im not totaly convinced i have it plumbed in right, i have no heater so have just looped the thermost housing pipe together.
Has anyone got a diagram without the heater.

What engine? Is it possible the coolant is circulating round the heater circuit and not the radiator? Does the radiator get hot?
Have you tried taking it to a vet? They're very good with cats.....

[Edited on 12/5/12 by owelly]

From another post it seems he has a 2.0ltr Zetec