Need help, odometer quit

[Ncdan]

Hey guys I need a diagnostic. My odometer and trip gauge have quit working. Where do I start looking for the cause and how much stuff do I have to take off to fix, that will determine if I need a real wrench.

[guzzisteve]

If it has a cable, I would look there.  It happens, yours is not the first, but late EV's would break inside. I have sent them to Hollywood, CA to get fixed.

[fotoguzzi]

Speedo still works? Then it's inside the Gauge, probly some plastic gears mashed. What bike?

[Perazzimx14]

Might be helpful to know the make and model bike in question????

[Ncdan]

Sorry for the oversight guys I figured y'all would all know my bike, lol. She's an 07 calvan. The speed O works fine but neither odometer or trip work.  Bike had 7,000 miles when it quit a few miles ago. I have a trip planed and need a fix ASAP!

[fotoguzzi]

get a Sigma bicycle speedo, way more accurate than the ITI cheap plastic gears model your Guzzi came with.

[Ncdan]

get a Sigma bicycle speedo, way more accurate than the ITI cheap plastic gears model your Guzzi came with.

Thanks for the suggestion Foto but I really want the original working correctly and keep an accurate account of the bikes mileage. I'll do what is necessary to fix it properly. I'm hoping someone would have had this issue and can offer an exact fix.

[Kiwi Dave]

I'm hoping someone would have had this issue and can offer an exact fix.

Sure, buy a new one.  That's what I had to do.

[fotoguzzi]

You can enter your present mileage into the Signa, doubt you can do that with a new stock speedo.

[flangeman_70]

For the long term fix, maybe  this will help you outhttp://wildguzzi.com/forum/index.php?topic=76486.0

Adam

[pehayes]

I don't know if things may have improved, but ITI instruments are known for being almost impossible to disassemble without destruction and then you find that internal parts are virtually unobtainable.  Palo Alto speedometer hasn't been any help.  You might try others.  North Hollywood Speedometer?  Anyone have any success?   If you want it to look correct, leave the instrument or buy a new one.  If you want accurate mileage readout then buy a bicycle unit or a SpeedHut gps unit.

Patrick Hayes
Fremont CA

[Kiwi_Roy]

Do yourself a huge favour and get a set of speed huts c/w Guzzi logo. Speedhut will set the odo to match your old one if you ask them
Also ask them to seal the glass and get the rear reset buttons.


Sent from my shoe phone!

[MAC]

My CalVin odometer died at 16,000.Opened it up and found metal shards (that used to be gears)everywhere. I did the electric Speedometer and GM sending unit.

[Ncdan]

Sure, buy a new one.  That's what I had to do.

where

[Ncdan]

You can enter your present mileage into the Signa, doubt you can do that with a new stock speedo.

does it fit in the same place as the factory one and look the same?

[Cam3512]

Dan,

This happened to my Calvin on the way to a rally, same trip where my fuel pump hose popped off.  Speedo fine (electric), ODO (cable) dead.  Cable snapped where it took a bend under the seat.  New cable, all good.  I'd bet a billion dollars the cable is in two pieces.  Mine was an '09, and the dreaded speedo bugs had been worked out.  Damn, I miss that bike.

Cam

[fotoguzzi]

Dan,

This happened to my Calvin on the way to a rally, same trip where my fuel pump hose popped off.  Speedo fine (electric), ODO (cable) dead.  Cable snapped where it took a bend under the seat.  New cable, all good.  I'd bet a billion dollars the cable is in two pieces.  Mine was an '09, and the dreaded speedo bugs had been worked out.  Damn, I miss that bike.

Cam

AhHa, in that case look for a broken cable (inside the sheath) just up from the tranny where it makes a too sharp bend around the airbox.

[Ncdan]

Dan,

This happened to my Calvin on the way to a rally, same trip where my fuel pump hose popped off.  Speedo fine (electric), ODO (cable) dead.  Cable snapped where it took a bend under the seat.  New cable, all good.  I'd bet a billion dollars the cable is in two pieces.  Mine was an '09, and the dreaded speedo bugs had been worked out.  Damn, I miss that bike.

Cam

Cam, can you give me a call at your convenience at 336-416- 0491. Thanks
[/quot
e]

[oldbike54]

 Wait wait wait , you had a working odometer ? Sure that wasn't an octopus delusion ?

 Dusty

[n3303j]

You still have a working speedometer means that your cable is fine.
There is a worm drive that drives two worms, one worm goes to odometer and other to trip meter.
Sounds like the gear that drives the worns has failed.

You hve to open the case to address this issue. Once the case is open the mechanism comes apart without much effort.
You'll probably need a second instrument for parts. While in there lubricate all components properly.

Or get a good speedometer and open the case to set the odometer to match your true mileage. The odometer cluster just unclips. Play with it a bit, like a rubics cube, and you will find its easy to set each digit without disassembling the odometer stack.

[Ncdan]

You still have a working speedometer means that your cable is fine.
There is a worm drive that drives two worms, one worm goes to odometer and other to trip meter.
Sounds like the gear that drives the worns has failed.

You hve to open the case to address this issue. Once the case is open the mechanism comes apart without much effort.
You'll probably need a second instrument for parts. While in there lubricate all components properly.

Or get a good speedometer and open the case to set the odometer to match your true mileage. The odometer cluster just unclips. Play with it a bit, like a rubics cube, and you will find its easy to set each digit without disassembling the odometer stack.

Ron, are you sure that the Calvin has a cable which runs the speedometer and it's not electric and the cable runs the odometer and trip meter?

[Ncdan]

Wait wait wait , you had a working odometer ? Sure that wasn't an octopus delusion ?

 Dusty

The speed O meter works Dusty, you are confusing an
Already confused mind, or lack of ;)

[Ncdan]

You still have a working speedometer means that your cable is fine.
There is a worm drive that drives two worms, one worm goes to odometer and other to trip meter.
Sounds like the gear that drives the worns has failed.

You hve to open the case to address this issue. Once the case is open the mechanism comes apart without much effort.
You'll probably need a second instrument for parts. While in there lubricate all components properly.

Or get a good speedometer and open the case to set the odometer to match your true mileage. The odometer cluster just unclips. Play with it a bit, like a rubics cube, and you will find its easy to set each digit without disassembling the odometer stack.

are you sure the speedometer is not controlled electrically because when my battery went bad best I remember it effected the speedometer. Are you sure it's not electronic operated and the cable runs the odometer and trip meter?

[n3303j]

Are there systems that have a speed/miles instrument that uses separate inputs? Seems odd to bother with a cable if you are already receiving electronic progress signals.

[oldbike54]

The speed O meter works Dusty, you are confusing an
Already confused mind, or lack of ;)

 I'm stunned the ODO WAS working , keep that bike , it was obviously a Wednesday build .

 Dusty

[Ncdan]

I'm stunned the ODO WAS working , keep that bike , it was obviously a Wednesday build .

 Dusty

ok, seriously, the speedometer works but the odometer and trip does not. If the speedometer is controlled electronically then a broken cable could be the problem, right?

[Kev m]

Cam is competent and I know he wouldn't just make shit up.

If he says he had a Cal-Vin with the same failure (trip/odo, but not speedo) then there's no reason to not check the cable.

I'm guessing n3303j just has experience with a different year/model.

But you could always check a wiring diagram if you're unsure. It's just that there weren't that many years of Cal-Vins for there to be many variances.

[Zoom Zoom]

I am not aware of any "hybrid" units on the Cali bikes of the time. All mechanical. If your speedo is working and the odo is not, your trouble is internal to the speedo itself.

If everything stopped working, then the cable has either broken or slipped upward out of the transmission so the square drive stops making contact with the drive gear. I have had this happen to me.

John Henry

[Sheepdog]

The diagram on the attached link lists the cable as an "odometer cable." The exploded view and parts list may help you figure things out...

http://www.harpermoto.com/parts-by-motorcycle/2000-up-moto-guzzi-motorcycles/california-vintage-1100-2006-2008/dashboard-en-california-vintage-1100.html

[Chuck in Indiana]

I am not aware of any "hybrid" units on the Cali bikes of the time. All mechanical. If your speedo is working and the odo is not, your trouble is internal to the speedo itself.

If everything stopped working, then the cable has either broken or slipped upward out of the transmission so the square drive stops making contact with the drive gear. I have had this happen to me.

John Henry

I'm not aware of "hybrid" units, either. The odo failing on the ITI speedos was/is entirely too common. Many didn't go past 6K miles from new. The plastic gear is not lubed. There were several threads back in the day, but the consensus was to cut a window in the can, lube it, and put duct tape over the hole preemptively. There were pictures of how/where, but of course, they're all gone.