Truck Repair: auxillary drive bush n14, drive shaft, auxillary

Question
how do you change the bush and seal on the auxillary drive shaft is it complicated mine is leaking i think it has spun the bush in the housing is there any pictures avaliable also
       reguards Aub.

Answer
Well if it spun the bushing a new one might not help.You will have to remove the accy drive to replace the bushing.Take the pulley off first & you will be able to tell if it spun because usually it is hanging out the gear housing about 1/8 of an inch.You could be lucky and it is only the seal spun in the housing.If you take the Accy drive off make sure you time it to the engine...turn it to "A" then take the pulley off.There is a plug behind the pulley to align the cam to accy drive for adjusting the valves & injectors.