Veglia-ITI Speedo Replacement Options

[GT-Rx]

Broken Speedo Options for your Guzzi

Don't want to replace your speedometer with another pricey poor quality unit? The white-faced Veglia's seem to be more reliable and are rebuildable by one of the many speedo repair shops in the U.S., such as Palo Alto Speedometer to the tune of ~$200+ USD. The ITI's are disposable for the most part.

If you'd rather replace with a higher quality unit, the easiest solution is to purchase a 3-1/8" AutoMeter electronic speedo (1487/black -OR- 1388/white) per below:




along with an Acewell Speed Sensor Cable (ACE-S4 ~$10) from ElectroSport as shown below:



Drop in, wire up, calibrate and go.

Other solution:

Thanks to M Khan below for his words and pictures for his soultion below using a VDO unit.

If you have a ITI, it's probably best to just replace, as they are driven by a nylon gear that is prone to low-mile failure, and is typically not easily repairable or replaceable:



M Kahn chose a VDO "because of their superior workmanship and the beautifully simple dial. This dial has miles only and is instantly readable. It is good for a bike because it is sealed against moisture and even ozone." It's available in black (VDO 437151) or white (VDO 437201):




Installation:

Install is fairly simple. All you do is to uninstall the defective speedo and insert the new one. The original rubber ring which holds the old speedo will also hold the new one, and a small amount of lubricant (even water) is best for removal/reinstall of the new unit:



The original outer cover can be used on the VDO:



The cover screws cannot be re-used. You will need to purchase two (2) 12-20 bolts and matching lock nuts - do NOT over-tighten. The heads of the screws need to be filed in order for them to fit the groove of the VDO:



Electronic speedos require electronic signals. The VDO sender which costs ~$80 will not work. A GM/Mopar Speedometer Hall-Effect Sender -16-Pulse (as shown below) happens to fit and work. They can be found online and on eBay for ~$30.



Remove the speedometer cable completely from the bike, and fit and tighten the GM sender to the transmission where the cable was removed:



You will need to source and run wires to from there to the back of the speedometer. The connections are as shown HERE.

This is what it looks like when completed:




The chrome ring can be re-used from the stock gauge and placed on with adhesive should you decide (MPH memory option showing):



The last step is to calibrate the VDO, and can be done in an Automatic or Manual setting with the included instructions.

[Captain Oversteer]

Is the Acewell S-4 sensor a true fit to replace the original cable ?

Excellent tutorial, Thank you.

My Jackal's speedo has lost it's ODO function and the needle is bouncing, so I'll be looking to do this in the near future.

[johnk]

I wish I had known about that Acewell Speed Sensor Cable when I replaced mine.
I went with the white faced AutoMeter and have been very happy with it though I had to use a hall sensor triggered off the rear disc mounting bolts to run it.
That only gives 6 pulses per wheel revolution (which ain't much at all) so below 10MPH it's not much use but above that it works great.

Thanks for all the useful info.

johnk

[GT-Rx]

Dave, for a few more $'s I'd send it to Palo Alto Speedo for refurbishing, they do a really nice job.

johnk, seems that they are unobtanium in the US right now as the US distributorship is non-existent. Anyone in any of THESE markets care to buy me a few to ship over?

[Lightning]

Ok, I must have bought the wrong one but looks exactly like the GM sensor above.
http://cgi.ebay.com/ebaymotors/New-spee ... 3a53f8ac3c
There is no way that one will fit on my Cali.

[greyk9]

I know this is a year old but I'm needed help with the VDO speedometer install. Any one done it? Trying to get the VDO to work with the acewell s4 sender. So far no luck.

[GT-Rx]

I know this is a year old but I'm needed help with the VDO speedometer install. Any one done it? Trying to get the VDO to work with the acewell s4 sender. So far no luck.

Do tell... it's just not working? Did you try getting support from Acewell?

[greyk9]

The VDO speedometer self test tries to calibrate but nothing. It's like no signal from the sensor. Bajadesigns is now the US dist. their tech department told me "we just sell them we don't really know much about it". It would be helpfull if they knew at least how to test it. Talked to VDO, nice guys, but I couldn't tell him what the output of the acewell is, so no help till I found out.

[greyk9]

Hopefully someone might find this useful. I found that the VDO and the acewell adapter are not compatible. With that said here is my solution, since I preferred the VDO I ordered the GM hall effect generator, $20 on ebay. The previous speedometer mounting instructions work well, here is how I mounted the generator.
First I cut my old speedo cable and removed the 12 mm aluminum nut, cut about 4mm off the nut with a hacksaw. Next take a 3/8” SAE washer and counter sink the hole,the counter sink needs to be there so the washer doesn't interfere a rubber collar in the generator that needs to spin free. (see picture).

Take the nut center it on the washer and superglue it in place (counter sink away from nut)

Remove the rubber washer from the generator and center the washer/nut in the gen as shown.

Fill with your choice of liquid steel (follow the mixing and drying time instruction that come with the liquid steel)

You will need to grind about a 1/4" off of the steel battery plate. The air-box will interfere with the generator threading onto the transmission. So I took a heatgun and heated the corner of the air-box enough to push it in about 1/2". Last I needed to file the corners of the hex of the generator to clear the allen head cap bolt.

Wire-up, Calibrate, and enjoy a reliable speedometer.

[enderw88]

Hopefully someone might find this useful. I found that the VDO and the acewell adapter are not compatible.

Thank you, I am a few days behind you on this particular quest.

With that said here is my solution, since I preferred the VDO I ordered the GM hall effect generator, $20 on ebay. The previous speedometer mounting instructions work well, here is how I mounted the generator.

Nice. I am temped to try to machine a thread adapter from the metric male on the transmission bushing to the SAE female on the GM sender. Looks like plenty of room, but could be tricky to machine.