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My gun wouldn't over torque I'm sure, but if I can get to 250+ torque lbs vs 330 or whatever it is, I can't see that causing it to fail. |
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BTW, my 1/2" impact will do 800ft lbs tightening, and over 1,000 to remove stuff. My 3/8" gun will be just about right though; it's rated at 325ft lbs. Your X5 is a "Modern Era" BMW in that many bolt/nuts are single use, torque-to-yield or just normal fasteners that really are critical for torque. I would never consider using an air gun to put on an axle bolt, or a wheel nut, although Japanese cars tend to have MUCH more fragile wheel studs than the BMW bolts...by FAR. |
Just wanted to update this thread. Got the job done today. My X5 didnt have the electric ebrake servo motor attached to the calipers, so that made it much easier. I did get a 3/4" breaker bar and electric torque wrench attachment capable of 800 foot pounds.
I highly suggest getting a new hub along with the wheel bearing. I had a bearing installer/puller I used to press the hub into the wheel bearing. I did have to take the ebrake off, but it's simple once you know how. Getting any long wrench in for the wheel bearing bolts was very difficult. I could not get a torque wrench on them (4) but I got them very very tight. I aldo bought a axle puller to I was able to pull the axle once hub was installed. I aldo had to rent a hub puller, but I get my money back on that once returned to advanced auto. I did make a rookie mistake, pushed the brake petal trying to start the car, and freaking caliper piston came out. I ripped the boot trying to Install. Ordered one from BMW to the sum of $80, dang!! Needless to say I bleed the brake fluids also. It wasn't the most horrible job ever but I don't want to do it again anytime soon. |
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