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Old 08-06-2010, 03:45 AM
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Join Date: Jul 2010
Location: Hamilton Ontario Canada
Posts: 394
'86 190D odometer question

I fixed my odometer a week ago. The gear on the shaft driven by the worm gear (through the odometer numbers) was not touching the worm gear. I assumed the previous owner had done this on purpose. I pushed it back into place, seemed seccure enough. The gear is not loose on the shaft. Odometer worked great, so did the trip odo.

My odometer stopped working again, same problem.

Will lubricating the worm gear keep it from pushing the shaft away?

here is a picture similar to my setup. This is not my speedo. It shows the worm gear and the geared shaft that keeps being pushed away.

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Old 08-06-2010, 04:21 AM
compress ignite's Avatar
Drone aspiring to Serfdom
Join Date: Feb 2004
Location: 32(degrees) North by 81(degrees) West
Posts: 5,554
"Scuff Up " the shaft for the gear.

Some have let capillary action suck a drop of Loctite into the interface between
the gear and shaft to lock the gear in place.
'84 300SD sold
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Old 08-06-2010, 04:37 AM
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Join Date: Jul 2010
Location: Hamilton Ontario Canada
Posts: 394
the gears are tight, the shaft moves.
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Old 11-07-2010, 11:19 PM
gastropodus's Avatar
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Join Date: May 2010
Location: Portland, OR
Posts: 429
Originally Posted by weird beard View Post
the gears are tight, the shaft moves.
if the brass gear is moving away from the bracket, and losing contact with the worm gear, it means that the press-on collar on the other end of the shaft is slipping and allowing the shaft to move through it. Take that collar off the other end, and scuff up that other end with the flat bladed screwdriver or a pair of needlenose vice grips. Then reinstall the collar.

'79 240D - engine swap complete! Engine broken in! 28-31 mpg! Lovin' the ride!
'86 190D (W201-126) - 2.5 NA engine, 5 speed, cloth interior, manual climate controls, 33-34 mpg.
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