Over heating problem
#1
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Over heating problem
seems like air is getting into the system causing it to over heat after running a while. I could drive 100 miles before it happens. Tell me what you think.
#5
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I had the same problem a while back, all caused by a bad radiator cap (on the AST).
Make sure you change it with another 13psi one, local auto store should have it, good luck.
Make sure you change it with another 13psi one, local auto store should have it, good luck.
#7
RAWR
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what color is your AST? is it the stock one? if it is, make sure that it's black, i've read that they turn green just before they crack. If you have an aluminum AST, try (i think it's called) the champaign test. don't know how to perform it, but do a search and you should find a ton of walk through's here.
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#8
RAWR
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Originally Posted by TwinTurbo93
I had the same problem a while back, all caused by a bad radiator cap (on the AST).
Make sure you change it with another 13psi one, local auto store should have it, good luck.
Make sure you change it with another 13psi one, local auto store should have it, good luck.
shouldn't he (if he can) change it out for a higher pressure cap? if the stock one is 13psi, that's roughly .9 bar, so why not put on a 1 or 1.2 bar cap to increase the coolant's boiling point, thus making it harder for the coolant to boil and create air bubbles (hot spots) in the coolant lines, and possibly causing a coolant seal failure? or can you not use anything with more than 13psi of pressure with the stock AST?
#9
Racecar - Formula 2000
There was a Mazda recall that (among other things) lowered the cap pressure to 13 psi to keep the coolant seals, hoses, etc. from having problems.
#11
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had the same issues before i replaced my stock ast with an aluminum one.Now verything is gravy.No more coolant bleeding out of the overflow tank.Hope that helps.Odds are it was the ast itself as it was green and the seams along the sides seemed to be spreading apart ever so slightly.
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