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> Breaker bar or an inexpensive 12v Impact Wrench?, Answer surprised me....
sfrenck
post Aug 20 2012, 07:27 PM
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Well, couldn't break siz lug nuts bolts on my front driver tires. I had a lug wrench set up, and, using a 42" demolition bar from HomeDepot, was able to put all 170 lbs of my weight into them (estimated 170lbs x 30" lever / 12 in / ft = 425 ft-lbs).

I couldn't believe that I actually spun the blocked front tire instead breaking the lug nuts bolts free. Tried heat, PBlaster, hitting the tire iron with a BFH, (IMG:style_emoticons/default/ar15.gif) ... nothing.

Then I saw this online....
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A Kawasaki 12v Impact Wrench from Pepboys. That's right - it runs off the cigarette lighter. No way did I think this would work - but for $50 and no way to get my non-running car out of the garage to a mechanic with air tools I figured I'd give it a try. Heck, it's rated for 280 ft-lbs of torque (IMG:style_emoticons/default/huh.gif)

Much to my surprise, after about 10 seconds per rusted lug nut bolt, and very little effort on my part (holding the gun and pressing the trigger), the lug nuts bolts loosened and came right off!

Initial plan was to spin the nuts bolts off and quickly return the product for a refund, but now I'm keeping it in the family minivan for emergency tire changes. Figured I'd give a great product a plug and try to keep some fellow members from falling off their 3' long breaker bars as they jump up and down.
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McMark
post Aug 20 2012, 07:36 PM
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I've found that slow, steady increase of torque is WAY less effective than bursts of torque. When I'm loosening tough fasteners by hand I often do this. For example, old brake lines often want to round off when they're stuck and you try slowly increasing the pressure. But I have great success with breaking these nuts loose by pushing hard repeatedly, on-off-repeat.

But success with a 12v cigarette lighter tool is really interesting. Might have to add one of those to my collection. (IMG:style_emoticons/default/smilie_pokal.gif)
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maf914
post Aug 23 2012, 11:40 AM
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(IMG:style_emoticons/default/hijacked.gif)

Interesting thread concerning the 12 volt impact drill. I have been looking at 120 volt versions at Lowe's and Home Depot, wondering if they are worth the investment. I don't have a big compressor in my garage, so air tools are out. I get irritated when rechargable batteries die, so I didn't want to go rechargable.

Does anyone have experience with 120 volt impact drills? Are they worthy? (IMG:style_emoticons/default/idea.gif)

Thanks. Sorry for the hijack.
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balljoint
post Aug 23 2012, 12:25 PM
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I have two electric impact wrenches, a little one and a big one. They have come in handy many times.
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patssle
post Aug 23 2012, 12:39 PM
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I had to pull off the rear axles a month ago...that axle nut. A breaker bar with 225 lbs at the end didn't do it. Soaked in PBlaseter didn't do it. Bought a 500+ ft-lbs air impact wrench - that didn't do it either.

But it must of loosened it up because a 225 lbs human jumping up and down on the breaker bar finally did it. We were literally ready to quit when it came loose. The breaker bar bent before that nut came off.
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mepstein
post Aug 23 2012, 12:43 PM
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I had stopped by after you tried the breaker bar and loosened up the nuts. Actually it was my daughter that broke them free. Didn't want to hurt your feelings.
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MartyYeoman
post Aug 23 2012, 12:50 PM
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I've got a 3/4" breaker bar stuck into a 48" long piece of black iron pipe.
It puts the load out at about 60" from the socket.
Never had a problem breaking anything loose, not even axial bolts (bus, bug or 914). Just need to stand on it and bounce. (IMG:style_emoticons/default/biggrin.gif)
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balljoint
post Aug 23 2012, 12:54 PM
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QUOTE(mepstein @ Aug 23 2012, 02:43 PM) *

I had stopped by after you tried the breaker bar and loosened up the nuts. Actually it was my daughter that broke them free. Didn't want to hurt your feelings.


(IMG:style_emoticons/default/pinch.gif)


(IMG:style_emoticons/default/laugh.gif)
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zymurgist
post Aug 23 2012, 12:55 PM
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Cool tip. And it's Ninja Green too! (IMG:style_emoticons/default/ninja.gif)
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ThePaintedMan
post Aug 23 2012, 01:03 PM
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QUOTE(McMark @ Aug 20 2012, 09:36 PM) *

I've found that slow, steady increase of torque is WAY less effective than bursts of torque. When I'm loosening tough fasteners by hand I often do this. For example, old brake lines often want to round off when they're stuck and you try slowly increasing the pressure. But I have great success with breaking these nuts loose by pushing hard repeatedly, on-off-repeat.

But success with a 12v cigarette lighter tool is really interesting. Might have to add one of those to my collection. (IMG:style_emoticons/default/smilie_pokal.gif)



Force = mass x acceleration (IMG:style_emoticons/default/biggrin.gif) Acceleration can really make a difference sometimes.
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Eric_Shea
post Aug 23 2012, 02:09 PM
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QUOTE
Force = mass x acceleration
2 (squared)
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r_towle
post Aug 23 2012, 02:13 PM
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QUOTE(Marty Yeoman @ Aug 23 2012, 02:50 PM) *

I've got a 3/4" breaker bar stuck into a 48" long piece of black iron pipe.
It puts the load out at about 60" from the socket.
Never had a problem breaking anything loose, not even axial bolts (bus, bug or 914). Just need to stand on it and bounce. (IMG:style_emoticons/default/biggrin.gif)

I have broken both a 1/2 inch and a 3/4 inch breaker bar doing the rear nuts with a pipe while bouncing.
Twisted the end off both tools (craftsman thank you for the replacement)

Never had any issues using an impact gun, I have quite a few.
12VDC impact...that is now on my list...
Battery operated ones do tires really fast.

rich
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Valy
post Aug 23 2012, 02:16 PM
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QUOTE(Eric_Shea @ Aug 23 2012, 01:09 PM) *

QUOTE
Force = mass x acceleration
2 (squared)

Eric,
Seems you've been picking in Jake's notes on how to calculate engine power. (IMG:style_emoticons/default/laugh.gif)
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Brodie
post Aug 23 2012, 03:43 PM
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The unfortunate part about removing stuck lug nuts with an impact is quite often you will twist the studs off. I wish I had a better solution for you, but you'll have to do what you have to do to get them off. Try reversing and than going forward in really short bursts using a medium torque setting. If you break them off than you'll have to put in a couple of new studs. If you don't want to buy an impact yourself ask a local repair shop to do it for you. If it was my shop I'd buzz them off for free.
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Mike Bellis
post Aug 23 2012, 04:04 PM
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Electric motors start turning at max torque. I have both air and electric guns. My electric gun is way better at loosening bolts, my air gun is better at tightening bolts.
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stugray
post Aug 23 2012, 06:08 PM
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"Does anyone have experience with 120 volt impact drills? Are they worthy? idea.gif"

I have had a 120V impact wrench for at least 20 years and have beat the crap out of it (commercial use, not just hobby).
It will still break off pretty much any bolt you throw at it.

I dont recall the brand but I will check.

Stu
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okieflyr
post Aug 23 2012, 06:18 PM
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Scott,

If you get in a jam again give me a hollar. I've got tools and stuff down the street from ya.
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Elliot Cannon
post Aug 23 2012, 09:49 PM
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The key for me has always been "impact". As in "impact wrench". If you use a breaker bar with a cheater pipe, put a bunch of weight on the cheater pipe and then put some "IMPACT" (BFH) right where the pipe slides onto the breaker bar.
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76-914
post Aug 24 2012, 08:55 AM
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QUOTE(ThePaintedMan @ Aug 23 2012, 12:03 PM) *

QUOTE(McMark @ Aug 20 2012, 09:36 PM) *

I've found that slow, steady increase of torque is WAY less effective than bursts of torque. When I'm loosening tough fasteners by hand I often do this. For example, old brake lines often want to round off when they're stuck and you try slowly increasing the pressure. But I have great success with breaking these nuts loose by pushing hard repeatedly, on-off-repeat.

But success with a 12v cigarette lighter tool is really interesting. Might have to add one of those to my collection. (IMG:style_emoticons/default/smilie_pokal.gif)



Force = mass x acceleration (IMG:style_emoticons/default/biggrin.gif) Acceleration can really make a difference sometimes.

(IMG:style_emoticons/default/agree.gif)

QUOTE(Elliot Cannon @ Aug 23 2012, 08:49 PM) *

The key for me has always been "impact". As in "impact wrench". If you use a breaker bar with a cheater pipe, put a bunch of weight on the cheater pipe and then put some "IMPACT" (BFH) right where the pipe slides onto the breaker bar.

This might be the first time that I agree with (IMG:style_emoticons/default/poke.gif) Elyut but, (IMG:style_emoticons/default/agree.gif) Also, this method is less destructive.
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Lennies914
post Aug 24 2012, 08:48 PM
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I use one of these every day. Love it!

I also have a 120v. one, for when the cordless isn't enough.
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