water temp sender

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06-30-2009, 11:14 PM

markarleta1

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water temp sender

im having trouble trying to get a adapter from 12mm to 1/8"mpt so i can get my temp sender in my cyl. head. does any one have a fix?

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06-30-2009, 11:20 PM

fatelvis7

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temp sender

drill it out and tap it for the new thread, very easy, very quick, get a tap at local hardware store, use recommended drill and dip it in grease to catch the shavings. I've done it on 2 cars .

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07-01-2009, 12:39 AM

70 LS1

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You can't drill the cylinder head for 1/8 NPT because 12mm is bigger than 1/8 NPT, but the factory 12mm plug in the head can be drilled and tapped.

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07-01-2009, 06:07 AM

Pop N Wood

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Several places make adapters. Equus, Sun Pro, I think autometer.

Look through some old posts.

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07-02-2009, 06:29 AM

smokin2002

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ive also seen the water pump drilled and taped on the top flat round spot.. may be the road i take, lil leary of drilling on brand new prc heads of mine and hoping they dont weep afterward,