Join Date: Jul 2008
Location: Railton, Tasmania, Australia
Re: Inductive speed sensor on Rear drive problem?
Agreed John, it's possible that is the reason,..... but it is also possible that the differing thermal expansion rates between the aluminium and steel components are the reason for the (radial) looseness we have seen posted here when oil leakage was discovered through the centre wheel bolt hole. Obviously there is also a substantial weight saving to be made by using the aluminium for the majority of the crown carrier, but as with all engineering solutions there is a trade-off. However, the total unsprung mass of the combined rear wheel and FD components can be reduced by around 3 Kg (6.6 lbs) simply by installing the BS BT020 vs the ME880 tyre. I personally think a steel crown carrier could be manufactured from 1 piece of steel, bored out in the centre to remove some metal (weight) and sacrificing the centre wheel bolt. Intersting to see if anyone would ever go that way. Yes, I will be checking my tapered roller bearing for tightness soon when I dismantle the FD to fix the creeping pinion needle roller inner raceway. Too many quality faults on these FD units I'm afraid. Nothing that can't be overcome, but they should not exist in this day and age.
1987 Yamaha TY250R
1991 Aprilia Climber 280
1988 K100RT (the pack horse)
2005 K1200LTE Light yellow metallic