Speedo trigger wheel teeth ?

[roysum]

I need to re-calibrate my speedo due to a different diff ratio. I have been on the Caerbont web site for guidance and need to know how many teeth are on the prop/diff flange trigger wheel. Has anyone got one easily visible for a count up please ?

Thanks in advance, Roy.

[Simon says]

Roy YHM

[spend]

Are you sure theres not a calibration screw on the back of your speedo? ie made by ETB rather than caerbont.

[roysum]

spend said:

Are you sure theres not a calibration screw on the back of your speedo? ie made by ETB rather than caerbont.

Actually Spend I don't know yet, haven't removed it. Do you think it's more likely to be ETB as opposed to Caerbont ?

R

[spend]

Reasonable chance. Can't recall if all the (later) ETB's have the calibration screw accessible under a sticky label though.

[roysum]

spend said:

Reasonable chance. Can't recall if all the (later) ETB's have the calibration screw accessible under a sticky label though.

Ok, only one way to find out ! another job on the list.

Thanks, Roy.

[Simon says]

Well Roy if it's a GKN you have the trigger wheel as 16 teeth

[roysum]

Simon says said:

Well Roy if it's a GKN you have the trigger wheel as 16 teeth

You are a top man Simon says ! cheers.

Roy