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Old February 4th, 2013, 03:59 AM
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FetchMeAPepsi FetchMeAPepsi is offline
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Default Re: 1962 GMC 305V6 4WD Slow DD Build - Cecilia (Pic Heavy)

To address the new button top problem we'll just make a new fitting using our trusty bag o' connectors.

Strip the wire and cut off the old connector, like here:




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Then grab one of your spoon looking connectors that have curled sides ...




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And one of these pokey dikes things if you have one.




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The same can be done with a pair of coat hanger wires if you dont. Or a fork. As a Scotsman I never see any need to spend money. It puts my kilt in a bunch.




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Poke them in the connector where the curls are like this and pry them open slowly, just a little, until they fit the top of your button.




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Then crimp it back on the wire. Squish Squish.




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Then just place it on your new sending unit. All done!




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Just start your engine. See if it works!


As for me, nothing ever works like it should so.....GREAT CAESAR'S GHOST!!!!!
SHE'S GONNA BLOW!!!




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Of course that's not my gauge. I panicked too much to take a pic.


I shut her down and went into troubleshooting mode. Cool the engine, that takes what? Think McGuyver!
Water, oil, air. Ok, let's verify...

Check the water - I opened the cap and no boiling. Nothing funny.

I grabbed the infrared thermo gun that I bought because it was cool for AC troubleshooting...Toys rule

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175 degrees. Hmm, what the heck? That's not hot at all.

Then I hit the internet and started searching.
Lo and behold, sending units have changed quite a bit since 1962. Who'da thunk it?

They now offer less resistance at lower temps than old gauges are used to seeing. The difference is about 32 ohms.

To compensate you need to add a resistor to the wire to keep them honest so that's what I did next. Oh, and just try finding a 32 ohm resistor at any retail store. You wont.


So I bought a pack of 33 ohm resistors from Rat Shack (radio shack) for 1.19. The guy there looked like he hated life and his job. He threw my receipt in the trash instead of handing it to me.

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What's with lousy customer service anymore? No wonder the place was deserted.


Anyway, I got my resistors home and started photographing again.




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That's when I realized it said "47 Ohm" instead of 33. Someone had mixed up the resistor bin and I had looked at the label, not at the package. Dummy.


So I ran it back and tried to swap it out. Mr Personality was like, "You wanna what? Oh.....(long pause)...Do you have a receipt?"

"You threw it away".

"Oh, I did? (long pause again) Um.....I guess it's in here then."

He glanced toward the trash can.


As Mr Friendly dug through his trash I went to get the right package and rearrange all of the resistors back to their proper cubby slots because I didn't want someone else having the same problem.

Anyway (deep breath) back at the counter he found a receipt for a resistor. It's for a 100 ohm. Different date. "Uhkay here it is." I pointed out that it wasn't the right one, but he said it didn't matter. He just needed a reciept. I was done with the whole thing so I just let it go. Punk kids today. Ugh.

When I'm elected Dictator there will be a law against idocy....but I digress.




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Out the door I hobbled with my correct resistor in tow.




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I snipped the wire in two at a point that it was bare anyway from years of under-hood abuse.




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Then I attached a connector to it. Not pretty but we're going for drivability first, then pretty when we do a complete re-wire.




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Crimp the resistor on:




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Put on another connector for the other side




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Tie it to the existing wire. Then just plug it back on to the temp sending unit and we're off!




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And after starting her up she needed some alone time to warm up and I needed some fuel. I went inside to make myself a very tasty egg and bacon burrito.




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This is how she looked when I returned:




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SUCCESS!!!!!
And the temp was confirmed by the infrared reading 160 on the head. Nice!

I went back and painted it with liquid electrical tape just to be safe until I do a re-wire.



Lessons Learned:
  • My wires are old and corroded. This will need addressing next spring or so.
  • Reproduction parts aren't as good as original.
  • Look at what you're buying, even when you're in a hurry.
  • Kids that hate their jobs should find new jobs.

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  • Bacon and egg burritos with guacamole are delicious on a cold day.

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Last edited by FetchMeAPepsi; February 4th, 2013 at 04:06 AM.
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