The Jalopy Journal
The gauge has a ground connection to the gauge mounting plate. The connections to test are: Ign post to ground, ign to sender post, sender post to...
Your speedometer could have a few issues. It could be something as simple as the pointer hitting against a piece of debris. More than likely it...
Could you add some more pictures? Also, dimensions would help.
Just a heads up that we'll be there, talking gauges and shaking hands. We're going low key this year and buddying up with some friends near slot...
The vast majority of tachometer are a 2:1 ratio to be run off a distributor drive. If you have the matching tach to the speedometer pictured,...
That's a pretty early one, likely 1920's. Many different models used the same/similar units with small differences. Are there any case or face...
Not to toot our own horn, but we're one of those shops. Feel free to contact us if you have any questions.
Just to check, what ohm value range did you test the gauge with to determine that it is faulty? We find that a lot of aftermarket sending units...
100 MPH is pretty fast for most military applications. I'll check around the shop and see if I have anything written down.
If you can find the date code we could tell you more exactly, but yes, everyone is on the right line. Given the face value, it is a truck or other...
Generally speaking, factory calibration spec is +/- 10%. Vintage speedometers operate off of a balance between magnetism and hairspring counter...
There are very few speedometers that I know of that would have a 7 inch diameter. That being said, are you looking for something new or a period...
We do find that many of the Stewart Warner 3 3/8 units have very subtly curved lenses, which is very hard to differentiate from flat glass. That...
It sounds like it's time to send your speedometer into a reputable shop. There are several points of wear within the average speedometer that can...
There are several restorers of instrumentation that do quality work. Some specialize in different areas. What make/year/model of gauges are you...
I'd say it depends a little on what you have and what you want done. There are a number of reputable restorers, some mentioned above. Emailing,...
Gentlemen, it is not my business to give wiring advise, but I need to correct a previous statement. You do not need an ammeter rated for amperage...
You can restore your originals and have them set up for a modern power train. I know we've done the 35-36 Dodge truck set to higher values before.
Test the sender and check the wiring. The first step is isolating the problem and correcting accordingly. Many sending units, straight out of the...
I would check to see what the calibration of your tachometer is before making a purchase. If it is a Stewart Warner, the calibration is likely...
I want to say that those gauges are manufactured by King Seely. Please post a close up picture as a reminder. If so, they are bi-thermal gauges...
In theory, you can follow the procedure in the ply33 link, dependent on what type of temperature gauge you have. There are different charges and...
It should be a rheostatic 78-10 ohm, E->F.
The magnet shaft free rotation is the better indicator. The speedcup movement simply means that it, as a sub-assembly, is unobstructed.
Shaking the case or turning the magnet shaft at the cable interface?
The case or face part numbers would be of assistance. It does not receive a "standard" speedometer cable. I wouldn't hook it up until it has been...
It sounds as if you have wired it incorrectly. What model of tach is it? What control box (if any)?
I'm still considering that scenario and have noted your previous suggestion to do so. It is simply a busy time of year and we have higher...
If your speedometer has lost magnetism, it has likely not been serviced for some time. I strongly recommend doing so as the internal wear...
I see, expense is relative in restoration. The thermo-well is broken off of your capillary tube. I wouldn't bother trying to salvage the thermo...
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The Jalopy Journal
