Speedometer not accurate

[Bullitt]

After 100.000km driven jut by me, my angle drive also failed. To me it seems like
the gears are worn out a bit.

Got a new and more robust one and I can confirm, it is between 10...15% off.

I can recalibrate the speedo, no big deal, but the kilometer-counter will always be off
as it needs different gears. Is that perhaps available ?


if you want to ship your speedo to Germany - I can calibrate yours, too.
PN me if interested.

Will keep this in mind! Thanks!

Sent fra min F5321 via Tapatalk

[Bullitt]

I have found a local company that calibrates speedometers, so no problem there.

I have not checked it against a GPS yet, but reset my trip counter and had a drive.
At the end of my trip the counter said 88 miles. (I guess it is in miles, since the speedometer says 85 mph) Measured the driven distance in google maps, and it said 87 kilometers.
That would be way off. The trip counter should have said around 55 miles. On the other hand, I dont mind the speedo measuring in "kilometers" in stead of miles...

[Jakub]

Please observe pictures below,
top line on my phone is speed according to GPS,

IMG-20200219-WA0011.jpgIMG-20200219-WA0005.jpgIMG-20200219-WA0004.jpgIMG-20200219-WA0001.jpg

Daytime pictures are with angle drive from certain European supplier, one form the evening are with angle drive from Smiths Instruments dated November 1985.

Original angle drive has following ratio, wheel/cable 16/18, I came across following other ratios, 7/8 which is almost correct, 1/1 which gives about 12% inaccuracy and most outrages 8/7 which presents very good chance for a big ticket.