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What size is allen bolt at coolant filler?

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Old Feb 16, 2008 | 12:54 PM
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ppritchard's Avatar
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From: Longwood FL
What size is allen bolt at coolant filler?

To place a temp probe in the "allen" bolt hole at the top of the coolant filler, what size is the allen plug?

Just trying to figure out if I need an adapter to make a probe fit.

thanks,
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Old Feb 16, 2008 | 05:54 PM
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It's real easy - don't do it.

Read the PROPER way to install a coolant temp sender -

https://www.rx7club.com/showthread.p...t=coolant+temp

Keep going through the post, there's a list of parts to get to install it in the throttle body hose.

Dale
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