Pushing out water

rdoc29 · 03-16-2017, 06:02 PM

I am not sure I will have to check and get back with an answer. Thanks.

rdoc29 · 03-22-2017, 11:06 PM

It appears that some of the water goes back into the radiator but the radiator ends up about 1/2 to 3/4 of an inch below full.
The overflow tank is about two inches low of water at that point. As a point of information I had to replace the head gasket about thirty-five thousand miles ago.

btwilson86 · 03-28-2017, 03:26 AM

Are you running a properly mixed coolant (50/50 antifreeze to water or similar?) Less antifreeze and more water will mean a mixture that boils at a lower temperature, which can cause increased cooling system pressure that can cause the cap to open lower than you would normally expect it to.

Your coolant temp reading bothers me. Unless someone put a VERY cold thermostat in the car, it should be reading higher than that at operating temp. My car has a 180 thermostat, and at operating temp it is just a little under the halfway mark on the gauge. The water temp sending unit for the gauge is usually after the thermostat, so it will read warm water once the thermostat opens. I think if I were in your situation, I would test (or rather replace) the thermostat, and check for proper operation of your water pump (assuming you have a good mix of antifreeze/water).

03-28-2017, 03:26 AM	#3
btwilson86 Super Moderator Join Date: May 2007 Location: Billings, Montana Posts: 1,034	Are you running a properly mixed coolant (50/50 antifreeze to water or similar?) Less antifreeze and more water will mean a mixture that boils at a lower temperature, which can cause increased cooling system pressure that can cause the cap to open lower than you would normally expect it to. Your coolant temp reading bothers me. Unless someone put a VERY cold thermostat in the car, it should be reading higher than that at operating temp. My car has a 180 thermostat, and at operating temp it is just a little under the halfway mark on the gauge. The water temp sending unit for the gauge is usually after the thermostat, so it will read warm water once the thermostat opens. I think if I were in your situation, I would test (or rather replace) the thermostat, and check for proper operation of your water pump (assuming you have a good mix of antifreeze/water). __________________ 1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels

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03-16-2017, 06:02 PM	#1
rdoc29 Stock Join Date: Feb 2017 Location: New Jersey Posts: 3	I am not sure I will have to check and get back with an answer. Thanks.

03-22-2017, 11:06 PM	#2
rdoc29 Stock Join Date: Feb 2017 Location: New Jersey Posts: 3	It appears that some of the water goes back into the radiator but the radiator ends up about 1/2 to 3/4 of an inch below full. The overflow tank is about two inches low of water at that point. As a point of information I had to replace the head gasket about thirty-five thousand miles ago.