Theorists apply

Tech tips and how to's

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Curtis
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Location: Des Moines, WA

Re: Theorists apply

Post by Curtis » Wed Jun 26, 2019 4:38 pm

Okay try this.
Edit: Just fixed an error and reloaded it.

datsun_gauge_layout_69_70.pdf
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Last edited by Curtis on Wed Jun 26, 2019 7:38 pm, edited 1 time in total.
66 stroker
67 basket case, the renewal has begun.

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Curtis
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Re: Theorists apply

Post by Curtis » Wed Jun 26, 2019 6:26 pm

Here we have the infamous gauge voltage regulator. Look closely and you can see why proper grounding is important. In the last picture you can kind of see the contact points. I put a dab of solder on the ground clip.

It would fun to hook it up and take a video of it working.

The easiest way I found to quickly check my gauges was to hook up a 47 ohm resistor between the sender wire and ground. Gauge should fall somewhere in the middle.

IMG_2379.JPG
IMG_2380.JPG
IMG_2381.JPG
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66 stroker
67 basket case, the renewal has begun.

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Curtis
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Location: Des Moines, WA

Re: Theorists apply

Post by Curtis » Thu Jun 27, 2019 1:39 am

Okay, have one for the 68 too now.

datsun_gauge_layout_68.pdf
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66 stroker
67 basket case, the renewal has begun.

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jake7140
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Re: Theorists apply

Post by jake7140 » Fri Jun 28, 2019 10:55 am

That's cool Curtis. My vr has only one hole on the mounting bracket. I bench tested it and it pulsed sporadically from 0-10. Would die for a while, then maybe come back. So seems flakey. Maybe I will open up for kicks. AND NOW I CANT FIND MY STASH OF SPARES! Arrrrrrgh.
Steve
67.5 1600 racer
68 1600
70 SPL 2L 5spd in resto process
66 frame & shell
Shelves of parts
03 BMW 530i M-Sport
60 BMW R60/2
65 Harley Davidson Topper AH

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jake7140
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Posts: 198
Joined: Thu Sep 06, 2007 9:04 pm
Location: SE Wisconsin

Re: Theorists apply

Post by jake7140 » Sun Jul 14, 2019 11:19 pm

Work up(down)date:
-Connected temp sender wire to temp sender.
-got a variable power supply, set to 7.8v and connected to b/w and yellow wires that were connected to stock supply. b/w to input, output to yellow. Both supply grounds together to good ground
- Verified voltage at the test lead from supply to wire connections.
- neither gauge moved.
- varied the output voltage a bit up and down, still no action.
Now confused as the fuel gauge did move at least initially. Believe the gauge harness is visible up by the bottom of the dash and is plugged together. Bummed, thought I had it all figured out. Still digging for the extra original VRs. Hmmmm, focusing on driving it for now!
Steve
67.5 1600 racer
68 1600
70 SPL 2L 5spd in resto process
66 frame & shell
Shelves of parts
03 BMW 530i M-Sport
60 BMW R60/2
65 Harley Davidson Topper AH