Cooling system problem on 1963FSM

I was pushing snow for about 1 hour the other night. Tarctor was not working very hard.

When I arrived in the garage to park it, all of a sudden there was a gush of coolant from the overflow hose on the rad (about a liter).

Does anyone have any idea why it would do this.

I am not sure what poundage the Rad cap is supposed to be. The existing one has no number on it. Could it be I am pressurinzing the system too much and need a new cap. Or do I have a major problem.

Can someone tell me the right cap for the tractor

The rad did have a very small leak. I just took the rad out to repair. There was lots of coolant still left in the tractor when I drained it to remove the rad.

Also took the thermostat out. It was partially open when I took it out. Tarctor was cold.

Any help would be appreciated.

Kenneth

If the water is being constantly blown out of the overflow even straight after starting, you have a head gasket failure.

Well I think my problem is solved.

I patched the little leak in the Rad. Refilled the system with new antifrezze again. I may have not had the right mix in it so I made sure I did a 50/50 mix this time.

I also installed an overflow bottle to catch any overflow.

Used the tractor today for about 1.5 hours clearing snow. There was a tiny bit of coolant in the overflow bottle, but otherwise everything seems to be working fine.

One funny thing is that I put a water temp gauge on the tractor, the capillary type, and it is not moving.

Does this mean My thermostat is opening too soon and the Engine is not reaching operating temp.

I put the old thermostat back in, and it was partially open when cold. So I suspect it is not working.

I will eventually order one from the UK.

Thanks alot again for the advice

Kenneth

Do you know what the poundage should be on the cap.

Kenneth

any comments would be really appreciated

Kenneth