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7/2/17 12:55pm - Original Message: 'Temp sending unit'
bcliff Gold Member
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TOPTON, PA - USA

Vette(s):
71 454 convertible, mulsanne blue,a/c, matching numbers, 47K miles

Joined: 5/5/2002
Posts: 312
quick question, I have to change the Temp sending unit on my 71, Do I have to drain some antifreeze first or can it be done without draining. Not sure how much will leak out.

Thanks!

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Tom
71 454/365 Mulsanne Blue Convertible


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7/2/17 4:37pm - Reply: 'Re: Temp sending unit'
manchestershark Lifetime Member
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Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.

Joined: 10/31/2007
Posts: 1895
Well, if it was me. WIth a "COLD" engine , I'd have the wire off, the old one loose enough to spin out with my fingers, the new one in the other hand, a drain pan under the engine, and do a QUICK swap. Leave the radiator cap ON, so it doesn't get any air. You'll loose a small amount of fluid, but not enough to warrant draining the system just to do a quick swap. If you have headers it might be a headache and wet sleeves. Rams horn exhaust manifolds should not be a problem.

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 Forums -> C3 Cooling and Heating Systems
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