I suppose most of us are aware that if for whatever reason there is air in
the cooling system of a Vanagon (T3?) it will overheat because the system
gets 'air locked'. That means the coolant cant flow through the radiator
because it would have to push air down in the return path an there is
obviously not enough pressure to do that...
I'm suspecting there could be some solution, one would be to put the
radiator down where the spare tire is and eliminate the potential vapor
lock, or... what else ?

Thanks!

Tobias