scam75
Well-known member
Afternoon all
By a process of elimination I have deduced I need a new crank pulley for the alternator drive belt. When the car is out in moderate to heavy rain (parked that is), on start up the crank obviously turns but the belt does not. Voltage stays at 12v, basically battery power, then after a few seconds you hear a screech as the slips minimises then it stops and normal operation resumes, showing 14v on dash. Same effect can be had by driving through large puddle. So basically my crank pulley is disintegrating, albeit slowly. When you take the belt off there are slithers of metal from the pulley stuck inside the grooves. This can sometimes make for unpleasant noises as you can imagine. I have ruled out the alternator pulley as have had several alternators and always been same. Have also replaced AC compressor so the pulley on that is not at fault. Plus it has to be the crank pulley anyway as this is where the drive is initiated.
Anyway, I see this connects to the balance belt drive via 4 allen head bolts. No dramas. Does this then slip over the PS pulley or does it need removed also? And if so is that the bolt at a million NM that is often discussed or does it simply hold on the PS pulley??
And to finish, OPC want £96 for a new pulley. Do any of you fine chaps have a new, or good serviceable item you could swing my way for beer tokens? Part no. 944 102 116 12
Edit to add: belt is not slack!!
Many thanks in advance
Stuart
By a process of elimination I have deduced I need a new crank pulley for the alternator drive belt. When the car is out in moderate to heavy rain (parked that is), on start up the crank obviously turns but the belt does not. Voltage stays at 12v, basically battery power, then after a few seconds you hear a screech as the slips minimises then it stops and normal operation resumes, showing 14v on dash. Same effect can be had by driving through large puddle. So basically my crank pulley is disintegrating, albeit slowly. When you take the belt off there are slithers of metal from the pulley stuck inside the grooves. This can sometimes make for unpleasant noises as you can imagine. I have ruled out the alternator pulley as have had several alternators and always been same. Have also replaced AC compressor so the pulley on that is not at fault. Plus it has to be the crank pulley anyway as this is where the drive is initiated.
Anyway, I see this connects to the balance belt drive via 4 allen head bolts. No dramas. Does this then slip over the PS pulley or does it need removed also? And if so is that the bolt at a million NM that is often discussed or does it simply hold on the PS pulley??
And to finish, OPC want £96 for a new pulley. Do any of you fine chaps have a new, or good serviceable item you could swing my way for beer tokens? Part no. 944 102 116 12
Edit to add: belt is not slack!!
Many thanks in advance
Stuart
