RX7Club.com - Mazda RX7 Forum - Aftermarket coolant gauge in drain plug on block

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- - Aftermarket coolant gauge in drain plug on block (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/aftermarket-coolant-gauge-drain-plug-block-729114/)

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Originally Posted by NZConvertible (Post 7856231)

That won't help you if you loose oil or coolant in between fills due to component failure. That's what the warning system's there for.

true true that and dumb f**ks who dont know rotarys use oil lol

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Quote:
Originally Posted by clokker
I used this location...

Bad idea. That location is a dead leg that does not put the sensor in the coolant flow. You will eventually get the right reading, but it'll be delayed as the stagnant coolant slowly heats up. You have no idea if you really got the same readings, because they were taken at different times.

I thought this would be a good place, since it's so close to the coolant passages in the rotor housings.
Does the stock sensor location get consistent flow?

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Using the same gauge and same sensor, I moved the sensor from the stock water temp gauge location (near the oil pressure sender) to this new spot and got identical readings, so this location is at least as good as the stock setup.

Assuming this is true...wouldn't that be a good spot for an aftermarket gauge?

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Originally Posted by Davidov (Post 7894079)

I thought this would be a good place, since it's so close to the coolant passages in the rotor housings.

The fact that is close is irrelevant. It doesn't have coolant flowing through it, so it's not a suitable location for a temp sensor.

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Does the stock sensor location get consistent flow?

Absolutely.

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Assuming this is true...wouldn't that be a good spot for an aftermarket gauge?

No.