This page, and the FAQ’s, are strictly for suggested ways to fix your equipment. They are not intended to be absolute. The user/buyer of the FAQ’s and new gears are solely responsible for any damage or accuracy that may occur to their property. If you are not sure how to take something a part, ask on the many car boards that are available. The user has to keep his eyes open and use common sense.
NOTE: It is recommended to replace all of the urethane gears at the same time three gears (VDO) or four gears (MotoMeter). If you do not think you should replace all of your gears rub a finger nail over the teeth of the old gears. If any of the teeth fall off, these gears should be replaced as well. The original gears are made of urethane and lubricated with a petroleum grease. This combination causes the gears to become waxy and the gears start to disintegrate. If you do not want to perform this job twice-Replace all of the gears at once.
APPLICATION LIST
How to determine if you have a VDO or a MotoMeter unit (you can not rely on the face plate as this can be removed from the old unit and placed on either brand). Once the speedometer is removed from the cluster look at the circuit board to determine manufacture.
 
This is the speedometer removed from the cluster.
Their are two small shiny flathead screws holding the clear plastic cover over the gears.
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*First remove the clear cover
*Remove all of the gears
*Pull the two shafts out with pliers that the larger gears were on
!!!!!Do NOT try and remove the shaft that the twelve tooth drive gear is located on as this will damage the motor!!!!
*First remove and put aside the four rubber spacers that are on the rear of the speedometer circuit board. Blow everything out with compressed air. You can not use to much pressure. Use the air through out the unit. Any small pieces of the old gear can disable the odometer as the motor is not very strong. After using the compressed air inspect the unit for any stray pieces.
*Wipe clean all areas where the gears sit: plastic cover, housing, metal shafts, plastic original gear that is not replaced. Any residue that is left from the old gears and grease can cause the new gears to stick and not work properly. |
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These are the gears that are not replaced
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With the gears and shafts removed
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* (You are going to deform the bushing so that it can be removed. Wear safety glasses because the bushing can break and fly off) With side cutters (dikes, wire cutters), squeeze brass fitting where small gear was across the diameter with a firm handshake grip. Then turn the shaft two clicks and repeat with a firm handshake grip. Put the tool down and remove the brass bushing with fingers. If it does not remove with your fingers, repeat using the side cutters until it comes off. DO NOT USE ANY TOOLS to pull the brass bushing off as this could damage the motor. You do not need this bushing with the new gear. Press the new gear on starting with the larger side of the hole in the middle of the new gear using your fingers, Hold the motor side cover if you have a VDO unit and if you have a MotoMeter unit remove the motor cover and hold the motor shaft while pressing on the new gear.
Brass gear that needs to be removed and discarded
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Remove two screws that secure motor cover
Motor Cover removed
Use a finger to secure motor while pressing on new drive gear
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*Remove the round cover over the motor (on opposite side of gears)
*Holding the motor side, press the small gear in with your thumbs
*Reinstall the two shafts (wipe the shafts clean with a paper towel or cloth first to remove any old gear material and grease.)
*Install the smallest OEM gear first with the small gear down. Spin the gear to make sure the assembly spins freely
*Install the next smallest gear on the opposite shaft
*Then the gear with the boss. The boss should face up to you
*Then the last gear.
Each time you install a new gear, you should spin everything to make sure the gears are smooth and turning each other.
Replace both covers and reassemble the cluster. You are done.
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