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My electric gauge does not work. How do I know if the gauge or the sender is faulty?

My gauge reads full scale all the time.

My temperature gauge works but does not seem accurate.

My cable driven speedometer makes noise, is it the cable or speedometer?

My cable broke at the bottom end.

Do you sell hourmeters?

When I turn the key off, the pointers on my electric gauges reset any where at random and will not return to 0.

I want to replace my old mechanical diesel tachometer but it reads from right to left. Do you sell any like this?

What are your hours?

Do you quote an estimate before repair?

My electric gauge does not work. How do I know if the gauge or the sender is faulty?

Try this simple test. Remove the wire from the sending unit and gound it with ignition on and power to the gauge.. The gauge should rise to full scale. Most often the sender is at fault.

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My gauge reads full scale all the time.

The sender may be defective, or the wire running between the gauge and the sender may be grounding out.

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My temperature gauge works but does not seem accurate.

It is important not to miss match gauges and senders from different manufacturers. Use a Stewart Warner sender with a Stewart Warner gauge. Also, match the range of the gauge. For example, a 0-80 PSI pressure gauge requires a 0-80 lb sender. Also, temperature gauges have different scales. For example, Stewart Warner ranges include 100-230, 100-240 and 100-280 for coolant temp as well as 140-320 for oil temperature. All require a matched sender for accuracy. Most senders are sold in a kit with a 1/8" NPT thread on sender with a 1/4", 3/8" and 1/2" NPT (pipe thread) adapter to fit most north american vehicles. Metric adapters are also available.

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My cable driven speedometer makes noise, is it the cable or speedometer?

Most often it is the speedometer, and usually more so during the colder weather and accompanied by some pointer bouncing. This is usually caused by wear between the magnet shaft and frame and can usually be repaired before excessive wear comes about. The pointer usually bounces at low speeds and smoothes out at higher speeds. It is advised to repair or replace it before excessive wear makes it non-repariable. If the speedometer makes a squeeling noise it is most likely dry and lacking lubrication. It will wear quickly if this is the case. A cable can also make noise and cause the pointer to bounce but not usually due to lack of lube. It is more from moisture inside the cable and rust. Once a cable core has a rusted section it loses its flexability and causes a slight whip inside the casing which causes the pointer to bounce. To determine if the cable has a stiff spot, remove it from the casing and roll it on a flat surface to determine if it needs replacing.

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My cable broke at the bottom end.

When an inner core breaks at the transmission or engine end and no sharp bend or wear on the core is present then it is quite possible the speedometer or tachometer has ceased and needs to be overhauled before installing a new cable. An inner core that breaks at the very top end inside the instrument is usually due to the outer case not being securley fastened to the speedometer or tachometer. The ferrule on the casing sits off center and puts extra stress on the last 1/2 " or so of the inner core.

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Do you sell hourmeters?

Yes, for both DC and AC current. The mini meter is approx 1 1/2" x 1" and a bracket is available if in dash mounting is not desired. Hour meters to fit standard gauge hole size of 2 1/16" are also available along with a fromt flange model for bolting to a pannel.

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When I turn the key off, the pointers on my electric gauges reset any where at random and will not return to 0.

This is normal for many gauges now because of their mechanism. They are termed floating pointers and will only read properly when the ignition is on and power is fed to the gauge.

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I want to replace my old mechanical diesel tachometer but it reads from right to left. Do you sell any like this?

No, your tachometer is a reverse rotation (looking at the instrument end of cable it turns counter clockwise), but the problem is usually overcome by installing a 90 degree 1:1 ratio adapter at the engine or tachometer and reversing the driven gear in the adapter which reverses you counter clockwise rotation to a standard clockwise direction so you can use a tachometer reading from left to right on the facedial. Keep in mind there must be room for the adapter and that your cable will also be at a 90 degree angle compared to the origional route of the cable.

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What are your hours?

9:00 - 5:00 EST, Monday to Friday.

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Do you quote an estimate before repair?

Yes, always!

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Gord's Gauges
www.gordsgauges.com
ifixgauges@gordsgauges.com
(613) 224-9542