swisher_13_87

Well I changed my head gasket started getting hot would bubble out the overflow changed it and still doing the same thing has new pump and a mugen thermoswitch and thermostat help...

HEADS OR TAILS

iTrader: (3)

what about the radiator cap??

mouab18c1

iTrader: (5)

Is your fan turning on? Is your radiator clogged?

swisher_13_87

Only has 3k miles shouldn't be clogged but its a new fluidyne rad and cap and a new fan

PatrickGSR94

iTrader: (1)

If the coolant level rises in the radiator neck while the engine warms up, it means there's air somewhere in the system. The air expands as it heats up and pushes the coolant level higher in the radiator.

bigislandc2

when is it overheating? will it overheat just idling or when the vehicle is under a load? what was the reason for headgasket replace?

swisher_13_87

yea that's what im hoping for that's just what it did before I changed it had a split was leaking compression no.1 cylinder so hopefully it's a one time deal but what if it isn't what should I look into then

swisher_13_87

it overheats after driving awhile but it does it slowly so only once since the change so I hoping for air in the system to be the culprit just seemed to coincidence that it did the same thing

bigislandc2

yea just try to bleed the air out. some motors have a bleeder screw, if not a spill free coolant funnel is nice, but be sure the front of the vehicle is higher then the rest. also try to recheck for the leak on the first place.

does the upper coolant hose become hard after a few minutes

94VTEC2TONE

you sure the mugen thermostat isnt faulty? did you install the headgasket properly? did you bleed the top screw for the head, that leads to overheating quite easy. are you using the gauge to register its overheating, gauges can be wrong

bigislandc2

when you put the heater on will the temp go down.

Mattb16teg

Bleed the system.
Take off the radiator cap and let the engine run, turn on the heat full blast for about 5 - 10 minutes(this will in theory get all the air out of the heater core). Continue letting the car run with the heat turned off now until the radiator fan comes on(assuming your fan and switch and thermo are good).

PatrickGSR94

iTrader: (1)

You don't have to blast the heat in the cabin, just have the temp slider on full hot. Having the slider on hot opens the valve that lets the coolant circulate through the heater core. Turning on the blower does just that, turns on the blower motor, to blow air over the hot heater core. The air blowing will have no effect on the coolant lines or any air that may be in them.

*edit* you should always have the temp slider on full hot before starting any procedure that deals with engine coolant, i.e. coolant flush, or any procedure that requires you to drain the coolant, and likewise keep the slider on hot when you fill the system with coolant at the end of the job.

swisher_13_87

Thanks guys for all the advice I will re bleed it this weekend hopefully that will fix it