I asked him about a speedometer error that is evident with the TZS being 15 kph than the TXD. Now this problem with the TZS I have done to death explaining here basically the problem is most likely, correction the only possible place is the gearing of the spindle that goes into the gearbox.
What Alan discovered is that those errors are caused by the number of splines on the spindle shaft and the colour of the spindle! So while I have the gearbox out for the clutch I intend to look at what is in that one.
It being a Diesel in NZ we dont pay tax at the pump but as Road User Charges per Km/Mile. In a petrol overreading the actual speed/distance is fine but costlky to diesels
Ideally I would like to swap the TZS spindle to the TXD a cost saving
So next time you got your gearbox off have a look at the speedometer spindle is it white or black and how many splines has it got?
its either 19 or 21 splines apparently.