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Trip / ODO meters stopped working - advice please.

Old 03-17-2018, 06:53 AM
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The Forgotten On
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Originally Posted by davek9
Edit: I'm going to start a new thread for the Speedo PCB
*******************************************************************
I just pulled the speedo out of my '86.6 gold car I was using for DE's, I'm in the process of repairing the heater core and installing a new interior as the car has been rock solid.

After pulling out the speedo I now find the PCB at the back of it has a burnt resistor (note the speedo did not work).
Has anyone here repaired the PCB or should I just source a use Speedo?

Thank you,

Dave K
If it is just a resistor I would replace it. Using an entire new speedo is expensive and a resistor is like what, $1?

If it doesn't work, no harm no foul.

My odometer failing turned out to be the stepper motor failing and needing to be rebuilt (they are NLA).

I had it all done by North Hollywood Speedometer.
Old 03-17-2018, 06:47 PM
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Originally Posted by rjtw
I'll contact them, thanks! We need someone to 3D print this part out of a better material!
Why? They cast them out of decent plastic (nylon, I believe) and sell them for something like $30 (USD).
The new ones will last for a long, long time.

Call Roger, tell him what you need and it will be to you before you can finish stirring your pudding basin.
Old 03-20-2018, 04:54 PM
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Urdone
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I just pushed my trip odometer today, now the trip and odo doesnt work. but the speedometer works... guess i will be pulling panel out also and replacing the gear, lol
Old 03-21-2018, 02:30 PM
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Originally Posted by Urdone
I just pushed my trip odometer today, now the trip and odo doesnt work. but the speedometer works... guess i will be pulling panel out also and replacing the gear, lol
When you have a working odometer and trip meter, never push that button. AMHIK
Old 03-21-2018, 02:38 PM
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I always wondered it it matters when it's pushed, car in motion or standing still?
Or is it just going to break either way due to age?

Maybe we need a new Label for the button like "Panic"
Old 03-21-2018, 02:54 PM
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Originally Posted by davek9
I always wondered it it matters when it's pushed, car in motion or standing still?
Or is it just going to break either way due to age?

Maybe we need a new Label for the button like "Panic"
When in motion is the Ultimate no-no and it should just be connected to a hammer that comes out and hits you on the head. Sometimes it will work when stopped - that is until it doesn't.
Old 03-21-2018, 04:29 PM
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SeanR
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That's only with the old jelly gears, the new one won't have any issue with doing so while rolling.
Old 03-21-2018, 05:11 PM
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Urdone
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well I pushed while in motion when it stopped working.., but now I tinkered with it when idling in garage, then drove it and both trip and odo works, lol. I wont be touching it for a while !!
Old 03-21-2018, 05:41 PM
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Originally Posted by davek9
I always wondered it it matters when it's pushed, car in motion or standing still?
Or is it just going to break either way due to age?

Maybe we need a new Label for the button like "Panic"
Well, it seems that a lot of people think that pushing it when the car is moving will make a weak gear break.

Having had mine apart to replace the gear, I wonder about that.
There really isn't any interaction with that particular gear.

However, the reset is a fairly powerful electromagnet. And the overall "shock" from it triggering is pretty significant.
It may be that the combination of the shock/vibration to the entire unit plus the stress on the gear from it being turned are enough to cause a weak gear to fail.

After replacement, I've reset my trip odo a whole lot of times. I use it to determine fuel consumption, so it gets reset every time I fuel.
Sometimes moving, sometimes still.
No problems so far.


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