Flash_Harry
Jedi Hopeful
Offline
My '74 B-GT started pushing coolant out the overflow almost every time I take it out for a run - not a lot, maybe an ounce or so. Happens about 30 seconds or so after shutting down. And it happens even when the level of coolant is only about 3/8-inch over the tops of the tubes - also, with a new radiator cap or the old one, and a new thermostat. Compression in # 3 cylinder is down a little (less than 10 psi difference from others), but no change in the engine oil, no sign of coolant on the rockers, to indicate a blown head gasket. Even bought an infra-red thermometer, but there's no sign of overheating. Other than pushing out coolant, the engine runs fine and sounds good. I know the '65 Sprite I had years ago didn't do this, so there's something up - just need to find out what. Hoping for something other than combustion gasses getting into cooling system, like keeping it too full - any ideas?
Harry
Harry