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1Back to top Go down    Clock repair on Tue Aug 28, 2012 6:26 pm

sidecar paul

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The clock on my solo has been playing up recently, so today I replaced it with my good spare.

This left me with 3 old dead clocks with a variety of faults. By mixing and matching I managed to get 1 almost working, with a just a few segments missing, but by applying pressure to the display, I noticed that all the segments worked properly.

This led me to think about adding some shims between the display and the plastic housing to increase the pressure on the flexible contacts to the LCD.



The white strips, about 3mm wide and 10 thou (0.25mm) thick, were cut from a business card and slipped between the display and frame with the printed circuit board removed.



Well, it's worth a try if you have lost a segment or two, rather than binning your old clock.

And of course, don't forget to DeoxIT all the contacts (well nobody's mentioned it this week yet!)

Paul.


__________________________________________________
'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015)
....No CARS never ever!
    

2Back to top Go down    Re: Clock repair on Tue Aug 28, 2012 11:07 pm

blaKey

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Great bit of thinking Paul.

Correct me if I'm wrong, but there isn't really anything to wear out is there? So they should all be repairable?

Well done.


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Neil
K100RS 1986 RED!
K100RT 1987 (now nekkid with red bits)

Remember Rule No. 6
    

3Back to top Go down    Re: Clock repair on Tue Aug 28, 2012 11:11 pm

RicK G

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Yep you're wrong the liquid crystal stuff can leak out and then its shagged.
I have had success cleaning the contacts with a pencil eraser. A friend had a crook one a while ago and I got all but one segment to work so I will try pauls trick next time.
New ones are available on Ebay US for about $90


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If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

4Back to top Go down    Re: Clock repair on Wed Aug 29, 2012 4:20 pm

sidecar paul

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You're right blakey, there isn't anything to wear, but sometimes plastic things tend to stretch over time so that would release the pressure on the contacts.

As Rick says, if the crystals start flowing across the display, it's well past it's sell by date and DEAD.

Paul.


__________________________________________________
'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015)
....No CARS never ever!
    

5Back to top Go down    Re: Clock repair on Mon Feb 22, 2016 8:57 am

92KK 84WW Olaf

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I decided to resurrect this thread....some few weeks back I acquired a seat and instruments for the RT from Eire 1400.

He did tell me the time clock wasn't working and at the moment I already have instruments but non working speedo on the RT [its not the wheel sensor],and fully working one onthe LT which I can swap the working time clock out from rather than buying another time clock.

The RTinstruments are the early ones with the 4 and 7 litre warning light, the LT is 92 with the 5 litre warning light.....

My plan is to take the instruments off the LT and extract the time clock to repair the new instrumentsbefore puttingit into the RT so that the RT is not off road. Then take the working time clock from the 'old' RT instruments and pop it into the LT whichis then againfully functional.

My question....is this an option or are there differences in the time clock over the years? I am not really into electrical bits like this but have someone who will do it if I give him the correct bits.


__________________________________________________
1992 K100LT 0193214 101,000 miles
1984 K100RT 0022575 Baja Red bought 36,000 now 87,100 miles
1997 K1100LT 58,000 miles
    

6Back to top Go down    Re: Clock repair on Mon Feb 22, 2016 1:51 pm

Dai

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Yeah - it'll work. In both cases pin 1 is permanently live and pin 13/18 provide the earth. You could also try PMing me as I have at least three known working ones lurking in the spares draw. I prefer a nice fat round analogue clock with a decent backlight mounted in the fairing, rather than something which I can't see at night even with a good squint at it.


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'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

7Back to top Go down    Re: Clock repair on Mon Feb 22, 2016 6:32 pm

92KK 84WW Olaf

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I knew the someone I had in mind would be along not long after. Might have to find him some lemon sole for a special delivery.......promise they won't be turned into shoe leather this time......

Now how do I PM fishes...?


__________________________________________________
1992 K100LT 0193214 101,000 miles
1984 K100RT 0022575 Baja Red bought 36,000 now 87,100 miles
1997 K1100LT 58,000 miles
    

8Back to top Go down    Re: Clock repair on Tue Feb 23, 2016 4:19 pm

Born Again Eccentric

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My question....is this an option or are there differences in the time clock over the years?


Errr - yes, about 15,768 minutes of difference over 30 years, give or take a few leap years. Good news is though, you'll never be more than 1440 minutes out at any one time.

Now how do I PM fishes...?

Don't think you can - fishes are not forum members so you can't PM them unless they join.Very Happy


__________________________________________________

Paul

"Heidi" K100LT 1991 (Grey) (VIN 0190172 Engine No. 104EB 2590 2213) - 5th owner. January 2014 (34,000 - 61,000 miles and counting....)
"Gretel" K100LT 1989 (Silver Grey) (VIN 0177324 Engine No. 104EA 2789 2211) - 4th+ owner. September 2015 (58,500miles and counting....). Cat C Insurancewrite-off rebuild Feb 17
"Donor" K100LT 1990 (Red) (VIN 0178091 Engine No. 4489 2024) - 6th & final owner (crash write-off now donor bike). June 2012 (73,000 miles) to November 2013 (89,500 miles)
    

9Back to top Go down    Re: Clock repair on Tue Feb 23, 2016 5:28 pm

92KK 84WW Olaf

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BAE you were there for the fish incident. The Skroll proves it!!!


__________________________________________________
1992 K100LT 0193214 101,000 miles
1984 K100RT 0022575 Baja Red bought 36,000 now 87,100 miles
1997 K1100LT 58,000 miles
    

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