I finally got my car 95% together and am having an issue I cant solve. When I drive the car the temp on the gauge (it is new but it's a junk brand so I am in the midst of changing it to an autometer)is never higher than 160 degrees, but when I shut the car off the radiator boils over.
background of what I have I will get pics up in a couple of hours.
- Originally I had a 195 stat in it, It now has a 160 stat with a 1/8th inch hole for bleeding.
- the radiator is an aluminum with 2 10" electric fans.
- the schroud is a solid piece of 20 ga aluminum with the 10" holes cut out from it.
- the fan control is set at 160 and seems to cycles correctly.
- I originally installed a 15lb rad cap but the rad blew off, as I said, last week I installed a 15 lb closed system cap and a resivour. I filed it like the posts have said and the jar stayed half full for 2-6 mile drives in 85 degree weather, dont ash me why but yesterday I syphoned the fluid out of the resivour and put it in the radiator to see what happened thinking it would refill and be at a normal level, and after the 6 mile drive I turned the car off and it boiled over as it did before filling the bottle. After letting it sit for 2 hours and cool I checked it and the radiator had sucked all the coolant form the resivour.
I am not very good at cooling problems so ideas would be greatly appreciated. thanks guys