Radiator Cap Pressure

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May 17, 2014 | 04:29 PM

rikgray

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From: L.A.

Radiator Cap Pressure

What is the maximum radiator cap pressure?

I've heard that the O-ring water seals can't take much pressure.

May 17, 2014 | 06:31 PM

j9fd3s

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From: https://www2.mazda.com/en/100th/

the FD's came with 1.3 bar caps...

May 19, 2014 | 08:18 AM

fidelity101

Rallye RX7

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From: MI/CHI

When I build an engine, I pressurize the coolant system to 25psi and let it sit for an hour and then monitor the pressure change (if any)

May 19, 2014 | 09:55 AM

C. Ludwig

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From: Floyds Knobs. IN

Combustion pressure is going to be several hundred psi. So the inner ring, at least, is able to withstand that.

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