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see temp gauge problems.... for how it all started.
thought I'd check my thermostat first. my mechanic who was suppose to check out my car after i first got was having trouble with it running hot. i had to get the radiator reworked. he had told me he even took out the thermostat when he was searching for the problem, but neglected to tell me he never put it back in!
i was sort of surprised when i checked to replace it and found none. so i put a 180 thermo and a new sending unit in and everything seems to be back in working order except the gauge seemed to read on either side of the center mark now where before it was also between 1/4 and 1/2 unless i got stuck in a drive thru where it would get to the 1/2 way mark but hardly ever over.
i got the same type sending unit that was on it (flat top that looks like small nail head) with clip on connection. the book called for a screw type connector for the 69 396 which the parts house was out of. the ohm rating was a little different. would this make my gauge read different?
also just where is the range suppose to be?
wish they had some sort of degrees instead of just hash marks between C and H. thanks for the replies.

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To see a pic of my car, click here...
 

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Replacement sending units have varying calibrations, and generally show slightly different gauge readings than the original factory unit. Drive to a radiator shop that has an I.R. Thermo gun and have them "shoot" the thermostat housing and compare that actual reading with where the needle is on your gauge; that will tell you what the actual temperature really is, and will give you a reference spot on your gauge for where that temperature is.

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JohnZ
'69 Z28 Fathom Green
 
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