2nd Generation Specific 1986-1992 Discussion

Overheat help. Overflow full

Old 01-24-2013, 04:16 AM
  #1  
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Default Overheat help. Overflow full

Okay so I have no air bubbles or anything and I replaced the thermostat with a mazda thermostat and new hoses and clamps and a new water pump and new belts. The car just used to overheat but now its going through coolant. I noticed most of it going into the overflow. I am using a 13 lb .9 pressure cap on the thermostat housing. Anytime I run it without the pressure cap on it runs entirely perfect no overheat no anything. As soon as I put the pressure cap on it goes into the overflow and wont refill. I noticed from pictures that most rx7s have a hose running to the thermostat housing like this one http://mahjik.homestead.com/files/FD...iller_neck.jpg . If not something like it. I don't mine is all solid. Can that cause the problem??? I have a 1988 GXL.
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Old 01-24-2013, 07:41 AM
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Default Re: Overheat help. Overflow full

From what you just said, it sounds to me like the obvious problem is that cap you're using. Try a different one.
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Old 01-28-2013, 12:34 PM
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Default Re: Overheat help. Overflow full

What mods do u have?
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