C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Looking for temp sensor for 72

Old Apr 10, 2007 | 10:25 AM
  #1  
KJL's Avatar
KJL
Thread Starter
Melting Slicks
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2000
Posts: 2,738
Likes: 53
From: Bogart GA
Default Looking for temp sensor for 72

What I am looking for is a sensor that will work with my existing gauge but will fit a smaller 1/4 or 3/8 NPT hole.

I think the stock unit is 1/2" NPT. To damn big for most modern instrument ports. I purchased a smaller unit but it did not work at all. I don't want to get new gauge because I already have to many new gauges strapped to my steering column and no, I don't want to remove the gauge panel to replace to old one. Rather have a rectal exam by the Jolly Green Giant than remove that again.
Reply
Old Apr 10, 2007 | 10:50 AM
  #2  
TedH's Avatar
TedH
Le Mans Master
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 1999
Posts: 8,351
Likes: 75
From: Tampa Bay FL
Default

Originally Posted by KJL
What I am looking for is a sensor that will work with my existing gauge but will fit a smaller 1/4 or 3/8 NPT hole.

I think the stock unit is 1/2" NPT. To damn big for most modern instrument ports. I purchased a smaller unit but it did not work at all. I don't want to get new gauge because I already have to many new gauges strapped to my steering column and no, I don't want to remove the gauge panel to replace to old one. Rather have a rectal exam by the Jolly Green Giant than remove that again.
what style connector and sender terminal are you wanting to use? Dr Rebuild offers senders for most of the C1/C2/C3 years. I ultimately moved my original temp sender to my intake manifold as my DART cyl heads would accomodate only the smaller sender and I didn't want to mess with trying to find a smaller sender that would work with my old L48's system. Is that an option for you? Most aftermarket intakes have 1/2" NPT holes in the water passages. I removed my thermal sensors (control vacuum) so I used a resulting 1/2" NPT hole in the intake's water passage that leads to the thermostat housing.
Reply
Old Apr 10, 2007 | 11:09 AM
  #3  
KJL's Avatar
KJL
Thread Starter
Melting Slicks
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2000
Posts: 2,738
Likes: 53
From: Bogart GA
Default

Yes, that is what I am doing now, but I am looking to switch to an intake that does not have one that size. I could overobore it but would prefer not to.
Reply
Old Apr 10, 2007 | 12:03 PM
  #4  
bobs77vet's Avatar
bobs77vet
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Default

do you guys know what gauges are mechanical vs electrical on a 69??? i am wrapping up the install of my 79 engine in the 69 tilt front and i have to get the oil pressure and water temp sending units but i realize i don't know if they are electrical or mechanical. do you know thks bob
Reply
Old Apr 10, 2007 | 12:05 PM
  #5  
markdtn's Avatar
markdtn
Le Mans Master
10 Year Member
 
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
Default

With stock heads, just use the stock sensor in the head. I have L98 with aluminum heads and I just used an 82 sending unit (3/8), it reads pretty close in my car. I also think 'Lectric Limited has a 3/8 that will work.
Reply
Old Apr 10, 2007 | 12:09 PM
  #6  
TedH's Avatar
TedH
Le Mans Master
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 1999
Posts: 8,351
Likes: 75
From: Tampa Bay FL
Default

Originally Posted by bobs77vet
do you guys know what gauges are mechanical vs electrical on a 69??? i am wrapping up the install of my 79 engine in the 69 tilt front and i have to get the oil pressure and water temp sending units but i realize i don't know if they are electrical or mechanical. do you know thks bob
My 69's oil pressure gauge appears to be fed by the old fashioned method; mechanically via oil in a plastic line running from a brass fitting attached to the rear of the engine just behind the distributor/intake manifold. As for the rest... water and battery get signals via wiring and tach is mechanically driven from the base of the distributor.
Reply
Old Apr 10, 2007 | 12:10 PM
  #7  
pws69's Avatar
pws69
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
Default

Originally Posted by bobs77vet
do you guys know what gauges are mechanical vs electrical on a 69??? i am wrapping up the install of my 79 engine in the 69 tilt front and i have to get the oil pressure and water temp sending units but i realize i don't know if they are electrical or mechanical. do you know thks bob
OIL = Mechanical (line to top of block behind distributor)
WATER = Electrical (sensor in Driver side head)
Reply
Old Apr 10, 2007 | 12:42 PM
  #8  
bobs77vet's Avatar
bobs77vet
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Default

thks guys i will look to see what wiring and tubing is in the engine bay, perhaps i missed the mechanical tubing. thks bob
Reply

Get notified of new replies

To Looking for temp sensor for 72

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

 Michael S. Palmer
story-1

5 Best & 5 Worst Corvette Daily Drivers

 Joe Kucinski
story-2

The Headlights of Every Corvette Generation Explained

 Joe Kucinski
story-3

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-4

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-5

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-6

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-7

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-8

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-9

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei


Thread Tools
Search this Thread

All times are GMT -4. The time now is 01:52 AM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-7
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-8
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-9
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE