Originally Posted by
Parzival
Just to add to this, I have yet to see a Delorean that does not bubble in the over flow, especially if you have a coolant bottle that has the return from the head right around where the water line is. Its churning it up there, even if its just under the water line it will pull air in from the surface and churn it up.
If bubbling in there means a blown head gasket then I know like 8 local Deloreans with blown head gaskets, and non that don't.
Also I can't imagine a situation where your engine is pushing that much combustion into the cooling jacket and not causing your radiator cap to constantly purge. Does you over flow tube stay dry?