Author Topic: odometer set screw gap?  (Read 353 times)

Offline schrocketeer

  • ^ Motobrick Curious
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odometer set screw gap?
« on: November 16, 2019, 01:41:07 AM »
Would you please help me with the gap for the set screw that presses up against the shaft that holds the odometer gears? It's the white nylon screw that touches up against the the steel shaft with the odometer's gears. In the attached picture there is a red circle around the area.

In my last adventure going in this deep, I didn't pay attention to the gap. When my odometer hit 61,999 miles, it got stuck and would not roll over. This also kept the trip meter from functioning.

Before I put it back together, I'd like to go on more than a guess for the gap.

Thanks.
  • North Alabama
  • 1985 K100RT
Ken   Current: 85 K100RT, 70 CT70, 91 XR250, 97 XR100, 06 YFM400. Past Bikes: 95 VLX600, 86 TRX250, 02 GZ250, 83 Z50R, 78 ATC90, 86 XR250, 79 XR500, 72 AT1, 75 YZ360, 78 DT400, 75 DT125, 73 Trail 70, Dad's bikes I rode: 69 CL175K3, 71 R5-B

Offline Laitch

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Re: odometer set screw gap?
« Reply #1 on: November 16, 2019, 11:59:13 AM »
Before I put it back together, I'd like to go on more than a guess for the gap.
I haven't found a gap measurement yet. What I've found is that screws are likely too loose according to this source. Read the first and second sections. Right now, you might be consigned to trial-and-error.
  • Along the Ridley in Vermont.
  • 1995 K75 72,000 miles
I wept because I had no radials until I met a man who had no splines.
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Offline Chaos

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Re: odometer set screw gap?
« Reply #2 on: November 16, 2019, 03:14:13 PM »
Looking at my spare I picked up for the gears, that screw is missing.  Can't see what it was for in the first place since the odometer wheel shaft seems pretty well located.  I wonder if it was the cause of your malfunction or a red herring. 
  • sw ohio
1987 K75S    VIN 0231
Original owner, Original litter
200,000 miles (plus or minus) and 5 paint jobs
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Offline The Mighty Gryphon

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Re: odometer set screw gap?
« Reply #3 on: November 16, 2019, 04:08:52 PM »
I have been inside several speedometers in the past couple years and have never seen the set screw you speak of.  Perhaps it was only used in the early model instrument clusters.
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '91K100RS White/Blue, '89 K100RS Special edition White/Blue
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
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Offline schrocketeer

  • ^ Motobrick Curious
  • Posts: 70
Re: odometer set screw gap?
« Reply #4 on: November 19, 2019, 09:14:42 PM »
Ricardo Palao helped me, suggesting a gap of 2mm, on the FaceBook group "BMW-K  motorcycles K1 k75  k100  k1100 (purists)". I've put around 250 miles on it since reassembling with that tolerance, and it's working great.
  • North Alabama
  • 1985 K100RT
Ken   Current: 85 K100RT, 70 CT70, 91 XR250, 97 XR100, 06 YFM400. Past Bikes: 95 VLX600, 86 TRX250, 02 GZ250, 83 Z50R, 78 ATC90, 86 XR250, 79 XR500, 72 AT1, 75 YZ360, 78 DT400, 75 DT125, 73 Trail 70, Dad's bikes I rode: 69 CL175K3, 71 R5-B