temp sending unit - Team Camaro Tech
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post #1 of 10 (permalink) Old Mar 22nd, 00, 07:58 PM Thread Starter
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Jeff
 
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I have a 69 Camaro which I installed Factory console guages. The problem I am having is finding a temp sending unit that screws into the head and will work the guage. The car has a 350 motor out of an 80's Camaro. I guess Chevy changed the size of the sending units. I need the smaller size sending unit to work the temp guage. Has anyone else run into this problem?

The sending unit is needs to be much smaller (3/8) to screw into the head. I already purchased the unit for Classic ind. There is also a difference in the resistance. The larger one has about 650 ohms amd the small one has about 3000 ohms. I have tryed several different sending units with no luck. I am not sure when Chevy change them or if there is one that is made that will work.

Thanks for your help.
Jeff


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[This message has been edited by A69RS (edited 03-24-2000).]
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post #2 of 10 (permalink) Old Mar 23rd, 00, 02:44 AM
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a69rs

You should be able to pick up an adapter at the local parts house that will work.

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post #3 of 10 (permalink) Old Mar 23rd, 00, 07:20 PM
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My 67 used a large gage sender, it looks the same as an idiot light switch. About 1/2" pipe thread, screws into the LH cyl head.
Are you shure you need a small sender?
The large one is Classic Industries #G-1852 $17.12 for 68-69 with gage pkg.
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post #4 of 10 (permalink) Old Mar 25th, 00, 04:33 PM
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Go to any of your parts stores and get the adapter, unless you have a spot on your intake manifold. The adapter will work fine, but you get a better reading from the manifold rather than one cylinder head.

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post #5 of 10 (permalink) Old Mar 26th, 00, 01:37 PM
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I measured my senders today. The chevy one is 714 ohms at 70 degrees, the Sun 3/8" is 247.

You could probably drill and tap your head on the car. I did two 3/4" holes in the front ends of a small block before. If you do this, don't run the tap in too far. It can hit something and strip the threads.
The cast iron taps very easily.

Have you thought about moving the sender to the intake manifold if you have a hole there.
Also, you can get a water outlet that has a proper sized hole and put the temp sender there.
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post #6 of 10 (permalink) Old Apr 20th, 06, 09:54 AM
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Chris
 
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Re: temp sending unit

I don't know if this will help you or not Jeff, but my car has Autometer gauges and the temp sender is the smaller 3/8" brass unit like you're indicating you might need. you make a good point concerning the resistance: often we hastily replace a gauge and overlook that all senders won't function with all gauges...

'69 SS X66 Camaro
454, TH400 & GearVendor, 12 bolt
'82 Corvette.
stock
'81 Camaro Pro Bracket car.
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post #7 of 10 (permalink) Old Apr 20th, 06, 10:24 AM
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Re: temp sending unit

Quote:
Originally Posted by 82Vettrin
I don't know if this will help you or not Jeff, but my car has Autometer gauges and the temp sender is the smaller 3/8" brass unit like you're indicating you might need. you make a good point concerning the resistance: often we hastily replace a gauge and overlook that all senders won't function with all gauges...
lmao... gotta watch the "related posts" This one is 6 years old, I think he got it by now!





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post #8 of 10 (permalink) Old Apr 20th, 06, 01:00 PM
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Chris
 
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Red face Re: temp sending unit

well I'll be dipt ..... didn't even pay any attention to the date , sorry

'69 SS X66 Camaro
454, TH400 & GearVendor, 12 bolt
'82 Corvette.
stock
'81 Camaro Pro Bracket car.
406, TH350, 10 bolt, NHRA #3148

Last edited by 82Vettrin; Apr 20th, 06 at 01:11 PM. Reason: because I'm stoopid :)
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post #9 of 10 (permalink) Old Apr 21st, 06, 04:55 AM Thread Starter
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Jeff
 
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Re: temp sending unit

FYI -I had the larger sending unit cut down and rethreaded to fit in the head.

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post #10 of 10 (permalink) Old May 9th, 06, 10:15 PM
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Re: temp sending unit

That's a great idea. I'm suprised the sender has enough extra metal to be turned down!

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