Da' coach is putting me in to play...

Discussion in 'Sparky's corner' started by yachtsmanbill, Feb 11, 2018.

  1. yachtsmanbill

    yachtsmanbill Well-Known Member

    Been on the BENCH for the last 5 years, showing up for training camp and practice every day, and now the coach has decided Im ready to get off the bench and play this week. Ive had a thred going over there for a while called the "MAD DASH".

    Yesterday, as I am prepping the dash panel (i.e. testing lights and circuits etc. before re-installing) I notice the gas gage is wayyy past full. When the bezel was removed last fall it read about 7/8 and was pretty accurate.

    Whats the best way to go about bench testing the gage? The books says "any reading while unplugged can be expected" but this one moved on its own. Hopefully I didnt fry anything while testing. I know about the 3 electromagnet movement but worry about internal stuff and the resistor on the back.

    The pic shows 7/8 upon removal and the new mark yesterday. Any help is appreciated! All these pics are with the battery disconnected for winter work. See ya on the bench boys! ws



    Last edited: Feb 11, 2018
    Nailhead Ronnie likes this.
  2. mrolds69

    mrolds69 Still restoring!!!

    I just put some info on this on your other thread, Bill.
  3. Chi-Town67

    Chi-Town67 Gold Level Contributor

    I've tested gas gauges with 2 "D" cell batteries in series. - lead to one terminal + to the other terminal on gauge. Scale should read all the way full or all the way empty. Reversing polarity on gauge terminals will sweep the the scale in either direction.
  4. buick64203

    buick64203 Buick Hunter Staff Member

    The pink wire going to the gauge supplies power. And the tan wire provides the resistance reading. So, connect 12v to the terminal on the back of the gauge that the pink wire connects to. Next ground the metal case of the gauge to.......ground. Now the gauge is powered. Next ground the terminal that the tan wire from the tank goes to. The gauge should go to empty.
  5. yachtsmanbill

    yachtsmanbill Well-Known Member

    Thanks guys! I wasnt sure if I had enough seniority to venture over to the bull pen haha. I knew there had to be a simple bench test for the instrument. If it rolls back to Empty or 1/2 way even, Ill call it functional. Just hate to retrace a crappy job! thanks again... ws
    Nailhead Ronnie likes this.
  6. buick64203

    buick64203 Buick Hunter Staff Member

    Its pretty easy. You can check it all by itself on a bench. No car required
  7. yachtsmanbill

    yachtsmanbill Well-Known Member

    Again; one of them jobs we took for granted 40-50 years ago! Whooda thunk it? TEST WILL OCCUR AT 1000HRS cst. Hope yer ears tingle guys! ws
    Last edited: Feb 12, 2018
  8. yachtsmanbill

    yachtsmanbill Well-Known Member

    Between us (shhh!) a resounding success! More to follow on the bench. You guys are the best! ws
  9. Smokey15

    Smokey15 So old that I use AARP bolts.

    That Bill, so handsome and dashing...............
  10. yachtsmanbill

    yachtsmanbill Well-Known Member

    Yeah Jerry... sure was a ton of PUN LOL... ws

    The shoemaker did not deny his apprentice anything he needed. He gave him his awl.
  11. Smokey15

    Smokey15 So old that I use AARP bolts.

    This thread is so enguaging that I'd be a heel if I didn't say you have a lot of sole. See how
    I laced it all together? Okay, maybe more like cobbled. But I think I nailed it.
  12. yachtsmanbill

    yachtsmanbill Well-Known Member

    YOU have the SOUL brutha! ws

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