How To Install a Speedometer Cable

how to install a speedo cable

DIY Speedometer service instructions.

The speedometer head is located in the middle of the instrument carrier panel and has a gear driven odometer as well as a magnetic speed indicator.
This odometer incorporates six figure wheels, with the right hand indicator wheel measuring in one-tenths of a mile.
The speedometer unit is connected by a flexible cable that drives it, and this speedo cable is driven by worm type gears at the rear of the transmission.

Speedometer Head Testing instructions

Most speedo cable breakages are caused by a tight speedometer head or just a small kink in the cable.
Tightness in the head may also cause wavering of the speedo pointer.
The speedo head may be tested for tightness as follows:

1. Find a short piece of speedometer cable ( 75mm to 100mm long) with a tip to fit your speedometer head.
Even a piece of broken cable can be used.
Remove and bring forward the instrument cluster panel.

2. With the speedometer unit still in place and the cable and casing disconnected, insert the test cable into the speedometer connection socket.

3. Spin the test cable three or four turns.
If the test cable shows any tendency to tighten or bind at all, there is an issue with the speedometer head and it should be removed for repairs by an authorized Speedometer Service repairer.
If the test cable turns freely, the head is working.ย 
Please note: A casing radius of not less than 100mm must be maintained at all bends of your speedo cable.

Speedometer Cable lifespan

The Speedometer cable is lubricated at the time of assembly and should not require further lubrication under normal conditions for 40 thousand kilometers.

Speedo Cable inspection

If the speedometer cable makesย  noise, or the speed indicator wavers too much, the cable should be inspected for any kinks and lubricated.

1. Proceed to disconnect the speedometer cable casing at the speedometer head and pull the cable out of the upper part of the casing.

2. Inspect the cable for kinks or breakages in the casing which might indicate lack of lubrication.ย 
When checking speedo cables for kinks, hold one end vertically in each hand and slowly turn the cable – if the cable is kinked, the loop will flop.
Replace the cable if it is kinked, and also if it is floppy.

Insert the speedo cable into the casing then connect the casing to the speedometer head, making sure that the cable tip seats correctly in the speedometer socket of course.

How To Install a Speedo Cable

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