2nd Generation Specific 1986-1992 Discussion

1987 rx-7 coolant loss

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Old 07-20-2009, 02:34 AM
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I have been reading forums on my problem with my 87 rx-7 and I seem to be stuck. I am having problems with my coolant system, and one forum will say that i need a bleed and another will say that I need to rebuild. My resavoir is full and when I empty it, it gets full again within minutes. Can idle the car for the most part without the coolant buzzer of death going off, but once I start driving, which is about 2-5 minutes of easy driving, the buzzer sounds. I have bleed the system from the rad, and I have flushed the system. The only thing I have not done is drain from the engine block. I am guessing that I have a crap ton of air trapped in the block but I am not sure. Is there anyone that may be able to lead me in the right direction. My goal was to get this car running right to where I can drive it to Wisconsin from Kansas to drop it off at my buddies who is going to hook it up while I am deployed. I want to keep the rotary cuz I hear nothing but good things about them, but the way things are going, I might have to get a 350 put in it, but I don't want to go down that road. I bought the car for $500 and figured it will be a great project car, and let me tell ya, it is lol.
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Old 07-20-2009, 01:18 PM
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Welcome to nopistons!



Are you saying that you keep emptying the coolant reservoir? And it's beeping (I'm assuming a low coolant buzzer)?
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Old 07-20-2009, 04:27 PM
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Originally Posted by Baldy' post='924563' date='Jul 20 2009, 01:18 PM
Welcome to nopistons!



Are you saying that you keep emptying the coolant reservoir? And it's beeping (I'm assuming a low coolant buzzer)?




Not everytime, but I would say 3 out of the 6 times I have flushed and bleed the system. It stays full, It will not take the fluid from the reservoir.
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Old 07-21-2009, 03:53 AM
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are you losing coolant or is it full? and if your losing it is there a leak underneath the car or is it just smoking white out the back
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Old 07-21-2009, 07:55 AM
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My guess would be front iron cracked (broken) water seal grove. Sorry man it happens to a lot of us.
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Old 07-21-2009, 07:56 AM
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It won't suck back coolant when it cools because its easier to take in air from the crack in your sealant groove
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Old 07-21-2009, 08:10 AM
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Just smell in the radiator. It should only smell like coolant and not exhaust gasses.
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Old 07-21-2009, 02:03 PM
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Originally Posted by RicerJ' post='924591' date='Jul 21 2009, 03:53 AM
are you losing coolant or is it full? and if your losing it is there a leak underneath the car or is it just smoking white out the back




It is loosing coolant out of the reservoir. I have only seen white smoke a couple of times
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Old 07-22-2009, 12:09 AM
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Originally Posted by justin56537' post='924598' date='Jul 21 2009, 07:55 AM
My guess would be front iron cracked (broken) water seal grove. Sorry man it happens to a lot of us.




Meaning I would have to replace motor, or just replace parts?
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Old 07-22-2009, 01:18 AM
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my bet on that would be replace part but you might just want to do a rebuild so everything is good
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