445 steam from radiator

[herk]

Hello I am looking at a 445 gas that after running a few min. steams from the radiator but it has no bubbles,(new cap ) no water in the oil ,temp gauge dosen"t go up (could be bad) also the motor seams to run hot ( muffler will glow red like you are pulling it hard ). The steam I think is a cracked head but the muffler getting hot puzzels me, timeing seems to be good ,any ideas Thanks Bryan
 

[Alan K]

I would think if it is a cracked head you would have bubbles in the radiator as the engine would be putting compression (air) into the cooling system. Possibly the water pump isnt circulating along with a bad temp gauge (guessing). Does the temp gauge move at all? Stuck thermostat...with a bad temp gauge. Would be an oddity but..... I dont think the 206 engines had problems with cracked head as the larger ones did.
 

[JK2]

It sounds to me like it could be that a new thermostat has been installed that has no bleed hole in it. Since the thermostat is in the hose a ways from the engine, if there is no bleed hole, the warm water can't get to it very quickly to make it open. I drill a 3/16" hole in the plate on new thermostats to prevent this. The original ones had this done when they were produced.
 

[molinegb]

Anytime I have seen glowing exhaust it is a timing issue.