Speedometer adjustment?

[nando]

There are only 1 type of toothed wheel sensors - 9 pulses/rev. it's true that some will have different K-factors calibrated in though. given how crummy the components are I wouldn't be surprised if the output of the calibration could jump to a different value due to aging components. The resistors on these boards are like +/- 25%, a modern 10% resistor will really be more like +/- 5%.

[Gregs///M]

Was your speedometer ever swapped out? the speedo assembly must be matched to the correct speed sensor or you will be off. There is a calibration factor number printed on the face of the speedo and looks like this. k=xxxx with xxxx giving you a value.

[vpilarrt]

the coding plug controls the tach and econogauge, it has absolutely nothing to do with the speedometer.

You're right, of course. For whatever reason when I first read the original post I was thinking of the tach and not the speedo.

[henryki]

Some people consider 195/60/14 stock size and I have seen many with this size when it is suppose to be 195/65/14. Po mounted 195/60/14 on my basket weave and when my speedometer showed 80mph, I'm actually doing ~72mph.

I'll double check my tire size. But when I know I'm doing 70 the speedometer reads 95

[mr.vang]

Nope! I'm running 14"weaves with stock tire size on them

Some people consider 195/60/14 stock size and I have seen many with this size when it is suppose to be 195/65/14. Po mounted 195/60/14 on my basket weave and when my speedometer showed 80mph, I'm actually doing ~72mph.

[henryki]

You have to make sure your speedo needle is adjusted to its correct 0 MPG location. With the front half of the cover off, the speedo needle should point to a small white dot. This indicator is used to place the original needle onto the motor. It can easily be bumped out of alignment if your cluster has been opened or modified.

The needle is lined up to the white dot, thats why I am just so confused...

[Gregs///M]

You have to make sure your speedo needle is adjusted to its correct 0 MPG location. With the front half of the cover off, the speedo needle should point to a small white dot. This indicator is used to place the original needle onto the motor. It can easily be bumped out of alignment if your cluster has been opened or modified.

[henryki]

Nope! I'm running 14"weaves with stock tire size on them

[nando]

the only thing that makes sense is the needle on his speedometer has been moved, or he's running extreme ultrastance stretched tires that are like 2" diameter less than stock. lol

[Madhatter]

The trigger wheel in the diff is the same size for everything too. So doesn't matter the ratio used, it's always the same. Assuming something weird isn't going on, what sized tyres are you running?

[nando]

You sure you don't have the 4 cylinder module in your cluster instead of the 6 cylinder?

the coding plug controls the tach and econogauge, it has absolutely nothing to do with the speedometer.

[vpilarrt]

can I put a VDO cluster in to replace a motometer?

Yes

[henryki]

Yeah but the Motometer gears cost like 4x the VDO gears.

fuggg, hopefully the other gauge cluster is a VDO...

can I put a VDO cluster in to replace a motometer?

[vpilarrt]

Yeah but the Motometer gears cost like 4x the VDO gears.

[henryki]

P/N is stamped on it. Compare it to bmwfans or realoem.

will do thanks for the help, probably just end up throwing in the other cluster in hopes that it all works, and gargastic makes gears for the odometer rebuild kid right?