I've used this trick to find a head gasket leak without a teardown- - - -Remove the fan belt to disable the water pump,(engine cold) and remove the thermostat housing. Fill the engine with coolant until it is at the level of the T-stat with the lower radiator hose still connected. Start the engine, and goose the throttle several times. If there's a head gasket leak, you'll see bubbles at the thermostat opening, or if the leak is really bad, water will gusher out of the head. That's the reason for disabling the water pump- - - -you'll get an immediate spurt of coolant if the pump is turning. The engine will run for 30 seconds or so before the coolant starts to boil, even with the pump disabled.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!