This is not a cap, or thermostat, or pump problem. This absolutely has to be a compression/combustion leak into the cooling system. I'll bet if you start it and put your nose in the radiator cap opening, you'll smell combustion products (exhaust). You might also see a lot of bubbles, which would be the combustion gases coming to the surface.
If this is a head gasket problem, you might want to consider having the head checked for flatness before you put 20 or 30 bucks in another gasket. If it's not a gasket... well, we don't want to go there, do we? I am in the process of changing out the short block in the ITB race car as we speak... cracked block! :(
--
Gary L - 1971 142E ITB racer, 73 1800ES, 02 S60 T5 BlueBrick Racing
|