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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: Brahma on July 23, 2016, 08:35:45 PM

Title: K100 Speedo ribbon to three pin fixture delaminating...
Post by: Brahma on July 23, 2016, 08:35:45 PM
Over the years, my speedometer pins have had to be messed with enough that it appears now the ribbon is delaminating.  Again, I had to look at the pins today after intermittent speedo readings started occurring again for the first time in a couple years. This time, I noticed that the ribbon is delaminating, which over time, could spell curtains for the odometer.  I cleaned and tweaked the pins- something I haven't done before, and put a light carbon conducting lube on them and reseated. I also put foam over the pins,but stuck them to the outter case, that when put back on, applies force to the pins.  Maybe this will help the intermittent problem.

As a question- has anyone done a complete ribbon bypass with direct-soldered wires to the speedo as a permanent fix?  It appears that the engineering of the bike will outlast the cluster- my intermittent speedo is looking terminal...  Pun intended...
Title: Re: K100 Speedo ribbon to three pin fixture delaminating...
Post by: Laitch on July 23, 2016, 09:10:00 PM
Quote from: Brahma on July 23, 2016, 08:35:45 PM
  It appears to hat the same big erring of the cluster will not out last the bike . . .
I swear that my cluster erring is differently small.
Title: Re: K100 Speedo ribbon to three pin fixture delaminating...
Post by: Brahma on July 23, 2016, 10:17:33 PM
Stupid iPhone auto-correct.  I cleaned it up.  :)

And they want to make driverless cars.....
Title: Re: K100 Speedo ribbon to three pin fixture delaminating...
Post by: Brahma on July 24, 2016, 10:34:11 AM
Just got back from a steaming hot, 100 mile ride north of Tampa, at 80+, and the speedo didn't miss a tic from the beginning. I do think my idea of constant pressure against the pins and for about a 1" square area will do wonders....
Title: Re: K100 Speedo ribbon to three pin fixture delaminating...
Post by: Inge K. on July 24, 2016, 12:35:24 PM
Quote from: Brahma on July 24, 2016, 10:34:11 AM
I do think my idea of constant pressure against the pins and for about a 1" square area will do wonders....

BMW did have the same idea in -86.......this connection have been modified by BMW several times,
the final mod was a two 4 mm screws.
Title: Re: K100 Speedo ribbon to three pin fixture delaminating...
Post by: Brahma on July 24, 2016, 04:06:02 PM
Very interesting- have pics?
Title: Re: K100 Speedo ribbon to three pin fixture delaminating...
Post by: Inge K. on July 24, 2016, 07:54:56 PM
Final mod............

Title: Re: K100 Speedo ribbon to three pin fixture delaminating...
Post by: Brahma on July 24, 2016, 08:35:21 PM
Interesting!  Thanks!
Title: Re: K100 Speedo ribbon to three pin fixture delaminating...
Post by: thecableguy on September 06, 2016, 10:48:12 AM
Quote from: Inge K. on July 24, 2016, 07:54:56 PM
Final mod............
Is the ribbon cable pictured above with the plastic bracket with provision for two screws available from BMW? I've looked thru the fiche at Max and I'm not sure I see it...

Jim
Title: Re: K100 Speedo ribbon to three pin fixture delaminating...
Post by: thecableguy on September 06, 2016, 12:22:04 PM
Nevermind, I see it now. It's part of that whole central assembly. 62 11 1 459 902 NLA

Arrrg.