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Old 07-09-2011, 09:05 PM
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150 ft/lbs is more than most automotive fasteners require. Most wrenches that are accurate up to 150 ft/lbs do not go down to 15-20 ft/lbs. Minimum on most that I am familiar with go from 50-150 ft/lbs. That is one of my responsibilities at work is to check calibration on about 300 wrenches monthly. Can anyone chime in on the torque spec for wheels? Alot of manufacturers are around 85-100 ft/lbs. Surely that is more than anyone would want if they need a wrench for such items as oil drain plugs. With that being said...I believe for DIY purposes, I would have two wrenches....one for the low end of the spectrum and one for higher end torque values. That is, if you are needing something to torque items such as suspension components.
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Old 07-10-2011, 12:24 AM
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Wheel bolts are 88 ft-lbs on my vehicles. That puts a 150 wrench right in the sweet spot. I trust that wrench down to around 40 ft-lbs; while it is rated from 20 I wouldn't trust it much at that range. It is a 1/2" drive wrench.

Not a bad idea to have a second torque wrench, 3/8" drive, rated from 5-50 ft-lbs or so. That will be very accurate at 20 ft-lbs. I don't have one. Not a bad idea at all for oil drain plugs; I use the excuse that I haven't stripped a drain plug in 35 years of wrenching, but it is a bad excuse.

My next tool purchase will be a 1/4" drive torque wrench for specific fasteners used for hollow carbon fibre components on road bikes. They crush quite easily. I need that wrench more than I need the 3/8" drive version.

Jeff
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Old 07-10-2011, 09:33 AM
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I also use the same excuse. I have a calibrated elbow maybe... So it sounds like maybe I just need to keep trusting the elbow and save my $$ for something else...
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Old 07-10-2011, 12:59 PM
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Originally Posted by greggw2gs View Post
I also use the same excuse. I have a calibrated elbow maybe... So it sounds like maybe I just need to keep trusting the elbow and save my $$ for something else...
The only way to calibrate an elbow is to use a torque wrench periodically. It is actually a pretty good idea to buy one. Craftsman torque wrenches aren't expensive.
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Old 07-10-2011, 04:56 PM
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My next tool purchase will be a 1/4" drive torque wrench for specific fasteners used for hollow carbon fibre components on road bikes. They crush quite easily. I need that wrench more than I need the 3/8" drive version.

Jeff[/QUOTE]


Not too familiar with torque specs on carbom fiber components but sounds as if you may need a wrench that goes down to in/lbs. I can see where they might be easy to destroy.
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Old 07-11-2011, 01:56 AM
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Quote:
Originally Posted by jcl
My next tool purchase will be a 1/4" drive torque wrench for specific fasteners used for hollow carbon fibre components on road bikes. They crush quite easily. I need that wrench more than I need the 3/8" drive version.

Jeff

Not too familiar with torque specs on carbon fiber components but sounds as if you may need a wrench that goes down to in/lbs. I can see where they might be easy to destroy.
Seat tubes and front stems in particular. No bike components are made in English sizes any more, at least not high end stuff. This one is most likely what I will buy: Park Tools 3-15 NM (= 26-132 Inch Lbs)

Park Tool Co. » TW-5 : Ratcheting
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Old 07-10-2011, 10:29 AM
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Quote:
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Can anyone chime in on the torque spec for wheels?
I have been using 105 to 110 for years.
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Old 07-10-2011, 12:54 PM
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I recall that the X5 was a little higher. It is listed at 101 ft-lbs spec, for the E53. All the other BMWs I have are at 88 ft-lbs, that is what I have been using and recall. I always check the owner's manual before torquing them, it is listed there.
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