doczoolu

When I step on the gas of my 83 944 water start flowing out of the overflow hose. Does anybody know why this would be happening?

xsboost90

check your oil, does it look like a milkshake? if so, do not pass go do not collect $200. you have a blown headgasket..

doczoolu

My head gasket is fine. I did a compression test just last week. I am also using a copper head gasket. The water is comming out of the fluid reservoir overflow tube.

led

Is the reservoir filled all the way to the top? Is the reservoir cap in good condition? Does the car overheat? Who let the dogs out?

Luis de Prat

Has the thermostat ever been replaced on this car?

If yes, have you tried bleeding the cooling system? On the 83, there's a 12 mm banjo bolt on top of the upper hose fitting on the engine.

Park the car with a cold engine facing upwards on a hill, pull the parking brake and let it idle with the heater on and the temperature lever all the way into the red.

Undo the bolt and wait until you see a solid stream of coolant. Tighten the bolt and the system should be bled, or have less air in it than before.

P.S. Be sure to clean up any coolant spillage on the ground with a rag, as it's toxic to animals.

dgz924s

Excellent suggestion on the rag part. The coolant is also very harmful to the belts. You will need to wrap the housing up good to keep coolant from running on the belt drive. The belts are directly in the path of liquid when bleeding. Cover the belt housing as best you can.

Luis de Prat

Another item to check that's easy to overlook is the reservoir cap itself. It has a spring inside with a rubber seal that wears out and lets vapors escape. Have you ever replaced the cap?

Dal: Thanks for the tip about the coolant being harmful for the belts. Good to know!