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Thermostat housing gasket

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Old 05-30-03, 07:42 AM
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Thermostat housing gasket

Thermostat housing gasket
where can I buy one, mine is leaking and I am in need of one bad - I have already tried mazdatrix and atkins rotary. any help would be appreciated.
Old 05-30-03, 07:54 AM
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you already tried mazdatrix?? try again, i just recently bought a new waterpump from them and it came with ALL necessary gaskets (ie; waterpump to housing gasket, housing to block gasket, upper thermostat neck housing to main housing gasket) and i think thats it. anyways just buy a new waterpump from them, you'll get all that you need to replace all possible coolant leaking gaskets in a nice little box. it solved my mysterious coolant leak/white smoke on startup problems as well by replacing it! you could probably use a new one anyways, no telling how old your current one is. i think it cost me a good 90 bucks, but its worth it... i also replaced my upper and lower radiator hoses and thermostat while i was at it... just be careful and dont over tighten the bolts, thats what i did and i cracked the main housing...

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Old 05-30-03, 07:58 AM
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I use RTV (silicone) sealant only.

Follow the directions.
EG:
Paint a thin coat on each surface.
Let it set a few minutes.
Don't overtorque the bolts.
Old 05-30-03, 08:00 AM
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I am about to call mazdatrix - I don't want to buy a whole new waterpump I just need the gasket if I can't get it than I will use RTV sealent as suggested - thanks
Old 05-30-03, 08:02 AM
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yeah DEFINITELY use some RTV on the gaskets, it really does work wonders, but i would suggest you replace the waterpump... seriously
Old 05-30-03, 10:40 AM
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I looked through my website and I couldn't find those gaskets !! ------ Guess those have "fallen through the crack(s?)" for the last FIVE YEARS !!!
-- Will be fixed soon --

GASKET THERMOSTAT 89-95 O-RING TYPE 15-1730-N3C1 $3.03
GASKET THERMOSTAT ALL-88 15-173A-1757 $1.10
Old 05-30-03, 11:04 AM
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Did you try the local parts store or mazda dealer?
Old 05-30-03, 11:06 AM
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It's not a gasket, it's an O-ring.
I had to replace mine recently, had problems finding a 'gasket'
DO NOT OVERTIGHTEN!!!!!
my housing leaks now because the bolt hole got reamed out slightly...
Old 05-30-03, 11:15 AM
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but i would suggest you replace the waterpump... seriously
the waterpump is fairly new - a new one was put on when the motor was rebuilt by atkins about 12k ago. I found one a malloy mazda in VA and the guy is mailing it to me today it was $3.80. thanks for the help
Old 05-30-03, 11:17 AM
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NAPA has it, and for only like a dollar or two!!! I looked everywhere for it, trying to special order, when I ran into an RX-7 owner at Advance Auto Parts who told me of NAPA. I have that gasket on both my '90 and '91.
If you don't have a NAPA there, I can pick up a few up the street...let me know.
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