1997 850 ps pump and alternator torque specs

2forty · Post by **2forty** » 04 Sep 2015, 21:20

I am replacing the power steering pump and alternator on my 97 850 and need the torque specs for the bolts. Also for the belt tensioner and pulley. Thanks.

Azik09 · Post by **Azik09** » 05 Sep 2015, 02:51

Pulley, central nut: 180 Nm
Pulley, 4 bolts: 25 Nm then 30 degs. tighten
Tensioner unit bolts: 40 Nm
Tensioner pulley: 30 Nm
Torques for alternator, pump, starter etc. usually are not specified and depends of bolt diameter:
M6: 5-10 Nm
M8: 12-20
M10: 25-45
M12: 40-50
M14: 70-100
M16: 110-150.
Apply less torques for aluminium and more for steel and cast iron.

2forty · Post by **2forty** » 05 Sep 2015, 19:58

Thanks