im confused ..cooling system question

another one of my baffling questions ..... so i havent cranked up my car in 4 weeks ..... i went out there tonight to take pics of how i flow my fuel for the nitrous section and i noticed my coolant system is about to exploded ... its under some serious pressure .... so i release the radiator cap slowly and it blows ...... holy shit ....

whats going on

Head gasket[s] ?

no oil in the water ..... and i did notice i still had some anti freeze left in there from the winter .... the water temp was 94* from just sitting in the garage ..... damn if it held that type of pressure for 4 weeks Lem ... i guess i will close her back up and see if it builds pressure again , then we will now if it is some kind of chemical reaction in the coolant .....

Nick what kind of cap are your running? is it some crazy no pressure relief cap or something? I would think the cap should have opened the relief to bleed off the excess pressure. Might be time to replace it if that's the case.

all it says is 13 lbs and made in china

That's an odd one. You would think no matter the cause, if the pressure was high enough to make the hoses expand, the 13psi cap should be doing it's job and puking the excess pressure through the overflow. As to why, I have no clue. I'd still put on another possibly lower psi cap to see if it does it again. Then look into why it's doing it.

Nick,
Did you by any chance attempt to change out the valve springs like you said you were going to?? If you did, did you use air in the cylinder?? If so there is the culprit. You pressurized the system by blowing by the head gasket with the air.

Travis

TravisRice wrote:Nick,
Did you by any chance attempt to change out the valve springs like you said you were going to?? If you did, did you use air in the cylinder?? If so there is the culprit. You pressurized the system by blowing by the head gasket with the air.

Travis

good point Travis.

TravisRice wrote:Nick,
Did you by any chance attempt to change out the valve springs like you said you were going to?? If you did, did you use air in the cylinder?? If so there is the culprit. You pressurized the system by blowing by the head gasket with the air.

Travis

nope i havent Travis , but what i did do is turn the motor(try to it was very hard) over to remove 2 of the rockers while the valves were closed on the other 3 cylinders on 1 side of the engine (plugs were still in btw)
guess that was a no , no

Pull all the plugs and see if there is water in the cylinders.... if so you may have a blown head gasket...


Randy

the Coug wrote:Pull all the plugs and see if there is water in the cylinders.... if so you may have a blown head gasket...


Randy

i did that last night randy and everything looks dry and the plugs look great

dfree383 wrote:Chemical reaction..... Tap water used?

yes