Hi Folks,
I was looking through the various installation instructions for the lightweight crank pulleys on a 2016 STI and it seems everyone has different spec for torquing the nut. Subaru service manual says to torque the nut on a stock crank pulley to 34.7 ft/lbs. Cobb and Grimmspeed says to do it to 94ft/lbs while Perrin says to do it to 132.8 ft/lbs. Does the different design of the various crank pulleys warrant the different torque spec?
Thanks,
John
I was looking through the various installation instructions for the lightweight crank pulleys on a 2016 STI and it seems everyone has different spec for torquing the nut. Subaru service manual says to torque the nut on a stock crank pulley to 34.7 ft/lbs. Cobb and Grimmspeed says to do it to 94ft/lbs while Perrin says to do it to 132.8 ft/lbs. Does the different design of the various crank pulleys warrant the different torque spec?
Thanks,
John
