oil temp combo gauge bench testing, what am I doing wrong (question answered) next: calibrate the gauge |
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oil temp combo gauge bench testing, what am I doing wrong (question answered) next: calibrate the gauge |
malcolm2 |
Oct 14 2014, 09:00 PM
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#1
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Advanced Member Group: Members Posts: 2,745 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
I have had this gauge for a while. I also found the complete taco plate, sender etc... to set it up. I decided to test it. I tested the sender a while back in hot water and remember getting various readings as the temp increased.
I pulled out my 12v powered drill battery, put 12v + on the + terminal of the gauge and the - on the - of the gauge. ( you can't see the - wire in the picture, but it is there) The gauge moved to where it is in the picture without the sender even being connected. It did not move once the sender was connected. Inside the temp gauge are the following #s. Far left 30, at the start of the red line 156.7 and the end of the red line 170 *C The top of the paper is what is stamped on each face of the hex and the gauge part # has been edited to what you see in the picture. 1. why is the gauge moving at room temp with or with out the sender? 2. do I have this thing hooked up right? any alternate testing suggestions? 3. do I have a matched sender & gauge? |
bdstone914 |
Oct 15 2014, 06:47 AM
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#2
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bdstone914 Group: Members Posts: 4,526 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
Sounds like the gauge may be faulty. Did you try grounding the sender wire to see if it pegs the needle?
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malcolm2 |
Oct 15 2014, 06:53 AM
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#3
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Advanced Member Group: Members Posts: 2,745 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
Sounds like the gauge may be faulty. Did you try grounding the sender wire to see if it pegs the needle? Yes, I used a medium sized aligator clip. Clipped to the threads of the sender then to a nut on the engine. All this during the car battery test. The needle only wiggled slightly as the ground connection was being made. |
stugray |
Oct 15 2014, 08:11 AM
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#4
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Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
Sounds like the gauge may be faulty. Did you try grounding the sender wire to see if it pegs the needle? Yes, I used a medium sized aligator clip. Clipped to the threads of the sender then to a nut on the engine. All this during the car battery test. The needle only wiggled slightly as the ground connection was being made. I believe he means ground the sensor wire from the gauge. This should peg the meter at ~300 deg. |
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