Hub extension Bolt torque

[acam37]

I just got my new Saber 4" hub and was trying to figure out how to torque the hub to engine flange bolts to their recommended values before safety wiring? I can't get my torque wrench on the bolts because there is not enough clearance between the prop flange and engine flange. Any suggestions?

[Mel]

You'll need to use a "crowfoot" wrench on your torque wrench.
Don't forget to factor in the extension distance. Or if you can manage to place the crowfoot at 90?, you should not need to recalculate.

[f14av8r]

From the Hartzell Propeller Owners manual - 115N, available online:

[acam37]

Thanks guys. I should have paid better attention in math class. I think that I can achieve the 90* on the crow foot.

[airguy]

I was not able to get a crowfoot on mine, my crowfoot was not long enough and I couldn't get the torque wrench onto the end, so I ended up sacrificing a wrench to make a custom tool. I cut off the box-end (round side) of a wrench and welded a 1/2" drive socket in it's place, this made an "extended crow foot" wrench that I could use as an extension and snap onto my torque wrench. Don't forget to recalculate your torque for the longer arm, per the directions on the post above.