Does anyone have any experience repairing a speedometer


Information and questions on GL1100 Goldwings (1980-1983)
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new82
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Does anyone have any experience repairing a speedometer

Postby new82 » Fri Dec 02, 2011 5:06 pm



82 GL 1100 - I'd thought it was the cable before, but it's fine, but something is loose in the speedo itself. The needle jumps all over the place and it makes a pretty helacious racket. at times it will fix itself and work ok for a time, but today I had to disconnect thcable to ride it home - reconnected a couple of times, but no go. The odometer works fine when cable is attached, but the speed indicator needle goes nuts. I tried spraying wd 40 in the hole where the cable attaches, but that didn't help. Haven't pulled it off the bike yet, but looking for prev experience before I do.

Jim



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ka4yqi
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Re: Does anyone have any experience repairing a speedometer

Postby ka4yqi » Fri Dec 02, 2011 5:19 pm

No experience on the 1100 speedometer, but have work on quite a few suzuki samurai's. Sounds like it need a little 3-n-1 oil on a few parts on the inside of the speedometer. Without the needed lube sound like it doing a little dragging in the housing, then trys to catch up. Also make sure your cable is lubed, it can also cause the jumping.

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virgilmobile
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Re: Does anyone have any experience repairing a speedometer

Postby virgilmobile » Fri Dec 02, 2011 6:45 pm

Yes,the same problem.pry off the chrome ring.Do not remove the trip knob.remove the 2 screws by the cable mount.Separate the rear cover,remove the screw that's stuck to the magnet and put it back in the frame from where it fell of from.lube all moving parts,reassemble and crimp back the ring.Don't cut the ring off,just peel up around the back.

new82
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Re: Does anyone have any experience repairing a speedometer

Postby new82 » Fri Dec 02, 2011 7:47 pm

Thanks Virgil - I still haven't pulled speedo - got lazy, but I'll pull it tomorrow & let you know the outcome
Jim

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Re: Does anyone have any experience repairing a speedometer

Postby Sparky 55 » Sat Dec 03, 2011 1:14 am

Hi New82,
I've had an experience that sounds similar to your's, I had a terrible squeel in the front end that came on VERY suddenly at highway speed. I had just ridden about 300 miles when this happened and my first thought was wheel bearing. I pulled the bike over and after checking for excessive heat, stone caught in the front disk etc.etc. I took off again, no sound...for about 500 feet then the squeel came back and I noticed the speedo needle bouncing. I disconnected the cable from the speedo, tried again, still squeeling. I disconnected it from the wheel and discovered that it was the speedo gear in the front wheel. WD 40 fixed it up for the rest of my trip.

new82
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Re: Does anyone have any experience repairing a speedometer

Postby new82 » Sat Dec 03, 2011 3:39 pm

Well, I popped open the speedo & couldn't find anything loose inside. The only magnet i found inside was a small one on the armature of the cylinder that moves the needle. nothing was binding. I guess the only thing I did that might have made any difference was soaked the cable connector housing with WD. maybe there was some crud in there that I flushed out. Anyway, it seemed to be working turning w/ a drill. Have to run the drill in reverse with this speedo.

I wasn't able to get the chrome ring crimped back on correctly, so had to cheat with some duct tape ( ugly, I know). maybe I'll pull it apart again some other time & try again. Anyway, I took it for a test ride before I put the windshield back on, and it's working right for now. Time for the LSU game now.

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virgilmobile
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Re: Does anyone have any experience repairing a speedometer

Postby virgilmobile » Mon Dec 05, 2011 9:04 am

The needle is suspended separate and completely mechanically isolated from the cable driven magnet,so the only explanation for the needle to jump WILDLY is to have something lodging between them.Usually it's a screw that came loose but any debris can do it.And it wouldn't take much stuff in there to muck it up.
Sounds like you got it OK.

new82
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Re: Does anyone have any experience repairing a speedometer

Postby new82 » Mon Dec 05, 2011 11:30 am

virgilmobile wrote:The needle is suspended separate and completely mechanically isolated from the cable driven magnet,so the only explanation for the needle to jump WILDLY is to have something lodging between them.Usually it's a screw that came loose but any debris can do it.And it wouldn't take much stuff in there to muck it up.
Sounds like you got it OK.


Thanks Virgil - It's working for now - at least until next time. So there's a magnet inside the cylinder that drives the needle. I should have taken pics while it was open. At any rate I Didn't pull the cylinder off - was kindof worried about breaking something. there is a thin gear between the cylinder & the needle that turns independently of them, and a very weak magnet on the outside at the base of the cyl. It sortof looks like a point contact. I was guessing that this magnet was energised to pull the cyl, but your explaination of a spinning magnet makes more sense in light of the squeeling sound. Anyway, if I do have go back into it later, is there anything I should keep in mind in popping the cylinder off?

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virgilmobile
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Re: Does anyone have any experience repairing a speedometer

Postby virgilmobile » Mon Dec 05, 2011 11:44 am

I never separated the mechanism.I just flushed with brake cleaner then lubes with 3 in one oil.

OlBuddy
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Re: Does anyone have any experience repairing a speedometer

Postby OlBuddy » Wed Dec 07, 2011 9:46 pm

Sparky 55 wrote:Hi New82,
I've had an experience that sounds similar to your's, I had a terrible squeel in the front end that came on VERY suddenly at highway speed. I had just ridden about 300 miles when this happened and my first thought was wheel bearing. I pulled the bike over and after checking for excessive heat, stone caught in the front disk etc.etc. I took off again, no sound...for about 500 feet then the squeel came back and I noticed the speedo needle bouncing. I disconnected the cable from the speedo, tried again, still squeeling. I disconnected it from the wheel and discovered that it was the speedo gear in the front wheel. WD 40 fixed it up for the rest of my trip.


I don't want to steal your thread, so I started new thread that has Sparky55's symptons.Glad your speedo is good for now.

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virgilmobile
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Re: Does anyone have any experience repairing a speedometer

Postby virgilmobile » Thu Dec 08, 2011 9:55 am

Quite OK.
Similar symptom,different end of the gun.
new82 disconnected at the spedo to stop the noise(spedo problem)
you disconnected from the spedo and the noise was still there(cable or drive problem)

Ya'll are gettin' good at diagnostics :)




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