Temp Sending Unit question
Thread Starter
Burning Brakes
Joined: Jan 2010
Posts: 884
Likes: 84
From: New Boston, NH
Temp Sending Unit question
I just replaced my factory heads with a set of Dart aluminum heads. I installed a new temp sending unit in the space between cylinders 1 and 3. My question is, on the other head, between cylinders 6 and 8, there is a corresponding oriface to install the temp unit. Does this location need to be plugged?
Thanks,
Bryan
Thanks,
Bryan
Instructor
Joined: Nov 2011
Posts: 228
Likes: 0
I just replaced my factory heads with a set of Dart aluminum heads. I installed a new temp sending unit in the space between cylinders 1 and 3. My question is, on the other head, between cylinders 6 and 8, there is a corresponding oriface to install the temp unit. Does this location need to be plugged?
Thanks,
Bryan
Thanks,
Bryan
Thread Starter
Burning Brakes
Joined: Jan 2010
Posts: 884
Likes: 84
From: New Boston, NH
Bryanhttp://www.summitracing.com/search/P...?Ns=Rank%7cAsc
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,850
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
The method I used may not help you but here goes...
If you know someone one with a lathe you can pull this off easy. I put the original temp sender in the lathe, turn it down and then re-thread it to 3/8 npt. Takes me about 10 minutes to do this and there is plenty of material on the original sender to do this.
IMHO,
Willcox
If you know someone one with a lathe you can pull this off easy. I put the original temp sender in the lathe, turn it down and then re-thread it to 3/8 npt. Takes me about 10 minutes to do this and there is plenty of material on the original sender to do this.
IMHO,
Willcox
Thread Starter
Burning Brakes
Joined: Jan 2010
Posts: 884
Likes: 84
From: New Boston, NH
I just ordered from Summit Standard Motor Co. part number TS76. Fits the 3/8 port in the dart heads and they assure me that it will work with the OE temp gauge.
Instructor
Joined: Nov 2011
Posts: 228
Likes: 0
I put a meter on it and it has different resistance that the original...I hope it works. I'll update tomorrow after I get the car running.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
Melting Slicks
Joined: Apr 2001
Posts: 3,399
Likes: 278
From: Olmsted Falls, Ohio
I'm sure it will "work", as they said, but what they don't say is that it will be accurate.
The resistance is not a set linear amount over the heat range of the unit. If you have both units side-by-side at "some" temp they might be the same, might not. In fact a stock unit will probably not be accurate with a non-stock gauge.
The resistance is not a set linear amount over the heat range of the unit. If you have both units side-by-side at "some" temp they might be the same, might not. In fact a stock unit will probably not be accurate with a non-stock gauge.
Last edited by KenSny; Sep 15, 2012 at 10:56 AM.
Safety Car
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
Rick B.
Le Mans Master
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
I drilled and tapped the hole in the head to 1/2 npt and used the original.
The sender has a variable resistance to ground, as the engine temp changes, the resistance in the sender changes.
The sender has a variable resistance to ground, as the engine temp changes, the resistance in the sender changes.
Last edited by '75; Sep 17, 2012 at 10:22 PM.
Instructor
Joined: Nov 2011
Posts: 228
Likes: 0
I wonder if the one I have is just bad or so far off it just won't work with my gauge...
I will clean the threads off, it come with tape already installed.
I did get resistance to ground but I didn't record it compared to the original. I will check it out this week sometime.
I will clean the threads off, it come with tape already installed.
I did get resistance to ground but I didn't record it compared to the original. I will check it out this week sometime.