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02-14-2015, 11:11 AM | #1 |
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Coolant temp sender idea
Hi all, I have been trying to figure a way to install my factory temp sender for the dash in my '76 with out being to intrusive. I tried to turn down a sender and cut threads into it and the sender was to thin. I don't want to drill and tap the head or the water pump, but I remembered that some ford products had a temp sender/switch in the heater hose like this one pictured. I figured I could cut the tube, flare the end and install it in line. Anyone have pro/con's about going this way?
Thanks, Matt
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My Chevy habit is paid for by Ford diesels... Here is my SLOW LS install: http://67-72chevytrucks.com/vboard/s...55#post6456355 Caliper Rebuild: http://67-72chevytrucks.com/vboard/s...d.php?t=613748 Upper Control Arm Bushings: http://67-72chevytrucks.com/vboard/s...d.php?t=616974 IG mattcrp1 Last edited by mattcrp1; 02-14-2015 at 11:31 AM. |
02-14-2015, 11:55 AM | #2 |
The Older Generation
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Re: Coolant temp sender idea
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I think you would have to make sure the resistance of the sender matches the gauge...... Not sure on the newer stuff. LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
02-14-2015, 12:43 PM | #3 |
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Re: Coolant temp sender idea
I was planning on installing the factory '76 sender and adding a ground to the sender as it would be insulated by the rubber. Do you think it would be accurate enough in relation to engine temp if I mounted it on the heater outlet side of the engine?
Thanks
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My Chevy habit is paid for by Ford diesels... Here is my SLOW LS install: http://67-72chevytrucks.com/vboard/s...55#post6456355 Caliper Rebuild: http://67-72chevytrucks.com/vboard/s...d.php?t=613748 Upper Control Arm Bushings: http://67-72chevytrucks.com/vboard/s...d.php?t=616974 IG mattcrp1 |
02-14-2015, 08:52 PM | #4 | |
The Older Generation
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Re: Coolant temp sender idea
Quote:
I don't have a clue on that. I think I would want it in the head. I drilled and tapped the head on mine to 1/2" NPT so I could use the stock '67-'72 gauge style sender. LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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02-19-2015, 06:35 PM | #5 |
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Re: Coolant temp sender idea
It will read differently in the head. Heck, I have the factory one in the drivers head (front of cyl #1) and it reads different than the autometer one installed in the passenger head (behind #8). At first I thought the gauge was off until I pulled the sender and hooked it up in a pot of water. Verified it was correct.
My buddy with a 67 LS1 has his set up the same way I do. He sees the same issue. About 10% difference for both of us. IE the passenger rear is 10% hotter than the drivers front.
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------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 |
02-19-2015, 09:22 PM | #6 | |
The Older Generation
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Re: Coolant temp sender idea
Quote:
I have read that having it at #8 will give you the most accurate reading of the actual engine temp. LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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02-19-2015, 11:23 PM | #7 |
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Re: Coolant temp sender idea
That's why it is hooked to my gauge not the computer. I can look at it on the track.
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------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 |
02-25-2015, 11:02 AM | #8 | |
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Re: Coolant temp sender idea
Quote:
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My Chevy habit is paid for by Ford diesels... Here is my SLOW LS install: http://67-72chevytrucks.com/vboard/s...55#post6456355 Caliper Rebuild: http://67-72chevytrucks.com/vboard/s...d.php?t=613748 Upper Control Arm Bushings: http://67-72chevytrucks.com/vboard/s...d.php?t=616974 IG mattcrp1 |
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02-25-2015, 11:05 AM | #9 |
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Re: Coolant temp sender idea
After trying to cut down a stock sender ( the one on the right) to put in the rear position in the passenger head, I got a couple of brass pieces to put it in line with the outlet to the heater core.
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My Chevy habit is paid for by Ford diesels... Here is my SLOW LS install: http://67-72chevytrucks.com/vboard/s...55#post6456355 Caliper Rebuild: http://67-72chevytrucks.com/vboard/s...d.php?t=613748 Upper Control Arm Bushings: http://67-72chevytrucks.com/vboard/s...d.php?t=616974 IG mattcrp1 |
02-25-2015, 11:07 AM | #10 |
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Re: Coolant temp sender idea
I added a ground wire to the brass "T". I figured as long as it can give me an indication of where I am temp wise it should be close enough.
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My Chevy habit is paid for by Ford diesels... Here is my SLOW LS install: http://67-72chevytrucks.com/vboard/s...55#post6456355 Caliper Rebuild: http://67-72chevytrucks.com/vboard/s...d.php?t=613748 Upper Control Arm Bushings: http://67-72chevytrucks.com/vboard/s...d.php?t=616974 IG mattcrp1 |
02-26-2015, 12:09 PM | #11 |
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Re: Coolant temp sender idea
What pieces are inside the stock sender. I think I lost one when I turned it down, all I have is the spring.
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02-26-2015, 01:35 PM | #12 |
It's alsways something.....
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Re: Coolant temp sender idea
Leon, How difficult was it to drill and tap the head for the stock 67-72 sender? I thought about doing that but frankly, I'm scared of screwing up the head
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02-26-2015, 06:00 PM | #13 |
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Re: Coolant temp sender idea
Made a sleeve for mine in the top radiator hose and ran a ground wire. One side has the temp sender, the other side the fan sensor.
tbrown
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03-01-2015, 12:40 AM | #14 |
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Re: Coolant temp sender idea
Well I got it mounted in line and filled the cooling system. I forgot to fill the upper hose when I lit it off and ran it for a minute. I realized that the hose was not getting warm and shut it off and filled the hose. The hose got warm immediately and seem to be working fine so far.
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My Chevy habit is paid for by Ford diesels... Here is my SLOW LS install: http://67-72chevytrucks.com/vboard/s...55#post6456355 Caliper Rebuild: http://67-72chevytrucks.com/vboard/s...d.php?t=613748 Upper Control Arm Bushings: http://67-72chevytrucks.com/vboard/s...d.php?t=616974 IG mattcrp1 |
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