Impact Gun bad??
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Super Member
Joined: Nov 2008
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From: NY, NY
2004 C240 4matic, 2009 C300 4Matic
Impact Gun bad??
I was told NOT to use an impact gun to put my wheels on my car. Also my friend said it was bad to use an impact gun on wheels that have spacers because the spacers can crack... thoughts? Spring is here and I wanna put my summer wheels back on. Should i just use a tire iron?
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Joined: Feb 2012
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1991 300d 2.5 turbo
The problem with the impact gun is only its potential to over-tighten. The way I use it is to just quickly tighten all bolts and get the wheels on snug. Don't tighten too much past the point of resistance. Then just hand tighten from there, shouldn't need to turn any more than about half a turn to hit about 100 ft-lb
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From: Raleigh, NC
2005 C230K, 2019 Honda CR-V, '74 Lotus Europa
It's not just that an impact wrench might over tighten your lug bolts, but they will likely be tightened to a different torque value which could cause warping. You can use an impact wrench to take your wheels off but you should always use a torque wrench (when possible - obviously, if you're on the road and you get a flat, you're not likely to have a torque wrench) when you tighten them.
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From: New Joisey
13 Jeep JKU Sahara w/4" lift Kit & the works,2015 Toyota Sienna XLE,2013 Hyundai Sonata Hybrid
YOu can use impact gun but you have to have the "Torsion Bar/Torque bar" rated at 80lb between the impact gun and the socket.....
here is the image of what I mean......
I always use the above when tightening wheels....
goodluck
javvy
here is the image of what I mean......
I always use the above when tightening wheels....
goodluck
javvy
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From: Toronto, Canada
2019 C300 Wagon; '75 Triumph TR6; previous: 2004 C230 6spd sold after 17 years of driving
YOu can use impact gun but you have to have the "Torsion Bar/Torque bar" rated at 80lb between the impact gun and the socket.....
here is the image of what I mean......
Neiko Heavy-Duty Torque Stick, 1/2-Inch Drive Extension Bars 60 to 140 Ft Lbs - Chrome Molybdenum - Amazon.com
I always use the above when tightening wheels....
goodluck
javvy
here is the image of what I mean......
Neiko Heavy-Duty Torque Stick, 1/2-Inch Drive Extension Bars 60 to 140 Ft Lbs - Chrome Molybdenum - Amazon.com
I always use the above when tightening wheels....
goodluck
javvy
or use one of these which are limited to 75lb ft and then finish by hand with a torque wrench
http://www.ecstuning.com/BMW-E36-325i-M50_2.5L/ES9021/
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From: fort worth, tx
06 C230 SS 6spd
as ncmudbug said over tightening can cause warping to the rotors and can crack the mounting points on the wheels to crack. using impact to remove is ok and general install but not to the point of tightening to spec. lug bolts and nuts should be torqued down to 85lbs/ft. they recommend that after reinstalling a wheel after driving about 50miles retighten down the bolts and lugs.
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Joined: Apr 2008
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From: San Diego, CA
07 E63 Estate | 09 & 10 Rx8 R3
+1 with finishing with a torque wrench. At the track we do 90ftlbs per wheel while its on the ground.
that impact is AWESOME for REMOVING the wheels though... and if its been awhile.. don't forget that block of wood and a sledge hammer.. they tend to stick.
that impact is AWESOME for REMOVING the wheels though... and if its been awhile.. don't forget that block of wood and a sledge hammer.. they tend to stick.
