ok, i have a 88 integra RS and for some reason the coolant is SHOOTING out of the bottom of the cap from the reservoir tank. this doesnt happen at idle but only when i rev up the engine or am driving. i have tightened it completly and when i get home i open my hood to find that the whole cap and tube shot off. right now its on a little loose just so it wont shoot off again. what do u guys think this could be?

 

Check the thermostat that’s all i can think of at this point. I don’t exactly understand your post.

 

yeah, im not expecting any1 to really understand this, its hard to explain but ill try to get some pics and post them. i already got a new thermostat so thats not the problem.

 

possibly rad cap not holding any pressure so as the coolant expands when it gets hot it just dumps into the overflow tank. just a guess.

 

Or maybe your thermistat isnt tuning on...

 

Is it possible to install a thermostat backwards?
(I don't know)


Is your car stock?
Kit Car just did a whole article on how timing/lean conditions contribute to overheating.


My 86 developed overheating problems too. Never spewed coolant from the overflow tank though.