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940 Wheel Hub Bearing Torque Necessary?

Are you sure it's not a brake dragging?

<EDIT> N/M, I was thinking of adjustable taper bearings front hubs like the 240 has
 
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JohnMc said:
Are you sure it's not a brake dragging?

If you overtightened it enough to lock up the wheel, I'm pretty sure you're going to need to replace both bearings, they're probably brinnelled to death.
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One spins freely, other spins but only 1 an a quarter revs.... I'm not extremely worried I bought the ones with the "Liftetime Warrenty."

Also for that test I removed the brake caliper completely and brake pads. left the brake rotor on and turned it via hub bearing stud.

Biggest worry I have is dealing with the autoparts store. Would rather pull nose hairs one @ a time than deal with dumb people their.

So? Torque numbers anyone?
 
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Djw21a said:
Think I over tightened my new Timken Wheel Hub Bearings on my 93 940. Anyone know the correct torque specs?

Why I "think" I over tightened them? Wheel won't rotate freely on one side as it should. Been discussing this and other problems here:
http://forums.turbobricks.com/showthread.php?t=297887
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Not possible. They aren't a typical tapered bearing hub like a 240. Those are a sealed hub like those used on a front wheel drive car. The spec for the nut is 74 lb*ft, plus an additional 45%.
 
2manyturbos said:
Not possible. They aren't a typical tapered bearing hub like a 240. Those are a sealed hub like those used on a front wheel drive car. The spec for the nut is 74 lb*ft, plus an additional 45%.
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Then?? How do you explain the bearing not wanting to rotate freely? Just to be clear i'm not questioning you but only trying to understand that if "this" isn't the problem then what is.

What i've done:
Removed wheel
Removed Girling Caliper*wedged it up against control arm stay rod, perfect place for it*
Removed EBC Redstuff Brake pads
Verified brake shield isn't touching rotor
Verified brake caliper adapter and hardware isn't touching rotor in any way.

Q: Could I have received a bum bearing?

One bearing came apart upon attempted installation, with great care I got the sleeve back into the bearing assembly avoiding dumb ass dust etc.
 
New, the bearings have a lot of drag in them. They are packed full of grease since it is not a serviceable bearing. IOW, it won't turn freely like a 240 hub does. If it takes a bit of force to turn it, yet, it turns smoothly once in motion, it is likely fine. I suggest putting the wheel on without the caliper in place. Spin the wheel. It it continues to turn smoothly with the wheel on it, the bearing is fine, IMO.
 
2manyturbos said:
New, the bearings have a lot of drag in them. They are packed full of grease since it is not a serviceable bearing. IOW, it won't turn freely like a 240 hub does. If it takes a bit of force to turn it, yet, it turns smoothly once in motion, it is likely fine. I suggest putting the wheel on without the caliper in place. Spin the wheel. It it continues to turn smoothly with the wheel on it, the bearing is fine, IMO.
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Brb, gonna attempt this now, and report back.

NOTE: Bearings were replaced like 5 to 6 months ago. Reason i'm talking about it now? I'm attempting to run down a problem with noise and this bearing is on that side the noise is coming from.

Discussed here if interested. ----Thinking its the caliper at this point----
http://forums.turbobricks.com/showthread.php?p=5173441&posted=1#post5173441
 
Rotation with wheel on but all brake hardware off cept adapter and rotor seemed slightly improved, but their is still a very noticeable difference.

I'll put the required torque on it and see how it reacts and report back. Time to go rent another socket.
 
Did what I said. I ended up tightening the hub assembly down with the tire off. However I did notice at one point that the hub started making noises after I re tightened it down using 75-80ft*lbs. I had to take it loose and tighten it down again, this time it was quiet and got the necessary torque. Seems okay, i'll run it for awhile unless otherwise recommended.

Guess I'll know somethings wrong if I see a wheel goes rolling off in the distance looking for a date while i'm on the highway:rofl:.... Seriously doubt that'd happen.

Thanks
DJ
 
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