Alternator Pulley Nut Torque

[btolenti]

Anyone know how much to torque a pulley onto an alternator????? I need to swap the 5 rib serpentine pulley onto my new powermaster alternator. Thanks! /forums/images/graemlins/thumb.gif

 

[surpip]

aww ya cheaped out and got the power master huh? damn guess illl have to be the guniea pig /forums/images/graemlins/waytogo.gif

 

[diesel4me]

I've always used an air impact gun to remove and install altenator pulley nuts--never had any luck using an allen wrench in the center of the shaft to hold it from turning--always strips the allen wrench hole.Dont know how much tourque it really takes,never saw it listed anywhere--but I know if its too loose,it will come off on the first high speed run you make with it--dont ask me how I know this.... /forums/images/graemlins/doah.gif /forums/images/graemlins/tongue.gif

 

[btolenti]

[ QUOTE ]
aww ya cheaped out and got the power master huh? damn guess illl have to be the guniea pig /forums/images/graemlins/waytogo.gif

[/ QUOTE ]

haha! yeah, sorry about that. I just didn't want to have to be the first to do this...plus I was concerned with the serpentine belt being perfectly aligned with the rest of my pulleys. I figured I could just get the powermaster and call it good. It is a 12SI alternator case, so I don't think cooling will be a problem (I originally thought the #47294 was a 10SI case, which I heard has cooling problems.), plus I got it with the black coating that is supposed to help disperse heat. /forums/images/graemlins/peace.gif

 

[m j]

I belive it is called "double torque"
2 quick hits with the 1/2" IR impact gun and it is good to go

 

[btolenti]

[ QUOTE ]
I belive it is called "double torque"
2 quick hits with the 1/2" IR impact gun and it is good to go

[/ QUOTE ]

So I called powermaster and they suggested double torquing it with the impact set at 90ftlbs or so...