2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

I believe I have bad coolant seals...

Old Feb 15, 2010 | 07:06 PM
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From: Diamond Bar, CA
CA I believe I have bad coolant seals...

I just tried the removal of the EGI fuse and with the filler cap and starting the car....coolant didn't pour out, it was like a fountain. Each time I tried to start, it would fountain out in chuncks. I'm pretty sure this is a bad coolant seal. The car is also hard to start along with the fact that cooling system is overpressurizing after it has been warmed. I have changed the cap and it stopped for a bit...until now.

Should I bother changing the thermostat and/or hoses?

I have called a rotary rebuild shop and they gave me the price of $4.5k for a rebuild.

I'm having a terrible FML right now...
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Old Feb 15, 2010 | 07:22 PM
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Originally Posted by rookieplayer
I just tried the removal of the EGI fuse and with the filler cap and starting the car....coolant didn't pour out, it was like a fountain. Each time I tried to start, it would fountain out in chuncks. I'm pretty sure this is a bad coolant seal. The car is also hard to start along with the fact that cooling system is overpressurizing after it has been warmed. I have changed the cap and it stopped for a bit...until now.

Should I bother changing the thermostat and/or hoses?

I have called a rotary rebuild shop and they gave me the price of $4.5k for a rebuild.

I'm having a terrible FML right now...
sounds way to high for a rebuild, but yes, defintely sounds like coolant seals
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Old Feb 15, 2010 | 07:35 PM
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i think 4.5k is a little high, i think there are some really good shops on here that do it cheaper

for 4.5 they better port the thing too
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Old Feb 15, 2010 | 07:36 PM
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It was something about how the coolant could have possibly eroded the engine and how they would have to be cleaned and stuff.

What's the price some of you guys were told? I looked on Mazatrix and it was like $2k...is that about right?

Last edited by rookieplayer; Feb 15, 2010 at 07:41 PM.
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Old Feb 15, 2010 | 08:03 PM
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id say they might be BSing u, but call mazdatrix tomorrow, and tell them whats going on, see what they say
mazdatrix is 100% trustable!
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Old Feb 15, 2010 | 08:55 PM
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when coolant seals fail it's almost always caused by something else, either the water jacket rusting away, or warped housings from overheating.

there's no way of knowing exactly what the motor will need replaced until it's taken apart.
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Old Feb 15, 2010 | 09:01 PM
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Go with Atkins rotary.
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Old Feb 16, 2010 | 02:46 PM
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Originally Posted by K-Tune
when coolant seals fail it's almost always caused by something else, either the water jacket rusting away, or warped housings from overheating.

there's no way of knowing exactly what the motor will need replaced until it's taken apart.
Exactly. You're going to need a new iron at best.

You guys are also forgetting the cost of removal and replacement. Also, alot of shops require the replacement of coolant hoses and various secondary gaskets when swapping or rebuilding the engine in any car to reduce the chance of the new engine failing.
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Old Feb 16, 2010 | 04:15 PM
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that's basically what mazdatrix said. they said it would be around $3.5+ just for the rebuild...i guess it's a good thing i still have my other car.
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