Forum:
ive changed the head gasket on my sporty recently done everything by the book OR CD MANUAL DONE THE IGNITION TIMING ETC ECT BUT ITS STILL OVER HEATING BADLY BUT THE FUNNY THING IS IM GETTING NORMAL COMPRESSION READINGS ALONG ALL THE CYLINDERS IM NOT GETTING MUCH WATER OUT THE EXHAUST OTHER THAN CONDESATION COULD MY RADIATOR BE DUFF OR HAVE I GOT A CRACK IN THE CYLINDER HEAD BECAUSE THE ENGINE SOUNDS SWEET WHEN ITS RUNNING
Yes ...........
Change the thermostat - make certain you replace with a daihatsu long reach thermostat and fit the toggle highest. Nuts MAXIMUM 5lb torgue and use sealant plus new gasket.
Flush the radiator.
THERE MUST BE A CRACK IN THE BLOCK
I RAN THE TRUCK WITHOUT A THERMOSTAT THE RADIATOR CLEAN COMPRESSION GOOD BUT ITS STILL OVER HEATING LIKE IT WAS BEFORE HEAD GASKET CHANGE AND HEAD SKIM BUBBLES AND BOILING INTO EXPANSION TANK IM REALLY PISSED OFF I CANT KEEP THROWING MONEY AT IT IM SURE THE BLOCK OR CYLINDER HEAD IS CRACKED BUT WHEN ITS UP TO TEMP I GET NO WATER OUT OF EXHAUST WHAT COULD IT BE IM NEED TO PRESSURE TEST IT
KING
Expansion tank.
Now you add that the coolant is boiling and bubbling into the expansion tank ! You first post failed to mention the bubbles etc. Bubbles is a sure sign of air/compressed gas entering the coolant. The only possibility is a crack or damaged head gasket. Did you torque the head in the correct sequence to prevent any twist/warp? Incorrect sequence could cause a distortion of the cylinder head.