theromostat neck pressure cap
#1
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theromostat neck pressure cap
The pressure cap on my s4 water neck is not holding to the pressure. I found that Mazdatrix sells the cap and neck together but I don't need both. So where can I buy just the cap itself?
One thing I don't understand about the system is why it has 2 pressure release caps. I wouldn't see any harm in the upper cap being solid and not releasing pressure since the radiator cap does.
Are there any other vehicle caps that will fit?
Thanks for the help.
One thing I don't understand about the system is why it has 2 pressure release caps. I wouldn't see any harm in the upper cap being solid and not releasing pressure since the radiator cap does.
Are there any other vehicle caps that will fit?
Thanks for the help.
#4
@ pipnorcali
i run the flat cap one off the t-stat and the pressure on the rad.
http://mazdatrix.com/getprice.asp?partnum=15-2050-KF01
http://mazdatrix.com/getprice.asp?partnum=15-2050-KF01
#7
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dunno, i have never used anything but the OE cap., i have jus heard that many have had probs. but heres an equally undescriptive thread about it:
https://www.rx7club.com/showthread.p...t=radiator+cap
no real reasons given
https://www.rx7club.com/showthread.p...t=radiator+cap
no real reasons given
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#9
Pop Pop BANG FIRE!
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i think i just figured out why my coolant is leaking from under the intake as of the day i bought a stant cap time to order a mazda cap and tear stuff apart
just ordered a mazda flat cap and a new thermostat housing gasket because i have a small leak there too.
after school project this week pull the intake, find the leak, fix it, and have it back together and have my new struts on by friday at 4:30
just ordered a mazda flat cap and a new thermostat housing gasket because i have a small leak there too.
after school project this week pull the intake, find the leak, fix it, and have it back together and have my new struts on by friday at 4:30
Last edited by jake1191; 10-19-08 at 10:02 AM.
#10
@ pipnorcali
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I am going to try another radiator cap I have because I noticed the seal is broken on the one I have on the thermohousing.
Last edited by Frostycrowd; 10-19-08 at 07:56 PM.
#14
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Several times I have had to use a pressure cap on the T housing...as I could not find a flat cap...I always used a pressure cap that is rated higher than the Radiator cap...never had a problem, BUT....that pesky O RING on the T Housing leaks very easy and good luck in finding one that is the proper size...Mazda dealer don't even have em !
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I don't see how a pressure cap can cause a hose to burst under the intake manifold.
I threw a stant radiator cap on there to see if it seals. I don't really see how it wont leak out the top because of the stud but we will see.
I threw a stant radiator cap on there to see if it seals. I don't really see how it wont leak out the top because of the stud but we will see.
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Pop Pop BANG FIRE!
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well i replaced the the hose today and its more of a pain in the a$$ to scrape off the old the intake gasket than anything but i replaced all the hoses under the intake just waiting for a new gasket and the new flat cap and t-stat housing gasket should all be here by friday and back together and my struts on
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Stant unit is holding up well, its really cold outside so hard to get the water temps up to truly test it out but after long drive with lots of acceleration not a drip.
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09-10-15 01:56 PM