shane661
Needs a life
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posted August 27, 2008 04:30 PM
 Edited By: shane661 on 27 Aug 2008 17:37
Countershaft Nut Woes
I went to change the countershaft sprocket today, and I can't get the nut off. I flattened the washer, and I put over 150 lbs. of torque on it...but it wouldn't budge.
So, I decided it was time to get an air compressor anyway. It came with a 1/2" impact driver that operates on 90 psi and is supposed to be capable of about 300 lbs. of torque. It won't loosen it either. I can't be sure of how much torque it is putting out, but it's enough to make the socket hard to remove.
So now I either go get a big billy-badass impact....or what??? I've never had one this difficult to remove...
Any ideas?
Shane
  
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az zx14
Expert Class
Posts: 132
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posted August 27, 2008 04:59 PM
Just curious if you are applying the rear brake when attempting to loosen. The torque spec should only be 92 ft lbs.
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shane661
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posted August 27, 2008 05:01 PM
Yes, I am.
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01smokes
Needs a job
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posted August 27, 2008 05:01 PM
i had to use a 1200ft lb impact on mine i thought i was going to f up the crank but its all good
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shane661
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posted August 27, 2008 05:11 PM
Well, I think I am going to bite the bullet and get a quality impact tool tomorrow. I was hoping to get by with the included one, but I guess there is a reason it was a pack-in....
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ratbyk
Expert Class
Posts: 179
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posted August 27, 2008 05:57 PM
You guys are forgetting that, that nut has LocTite on it. Get a propane torch and put a little heat on it. Don't try and turn it red hot or anything. Just get it smoking a bit. This will soften the LocTite and a bit more than the specified torque should crack it loose.
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pazx14rider
Zone Head
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posted August 27, 2008 06:32 PM
1/2in ingersol rand titaniam impact gun nice and light and tons of torque
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joemugg
Expert Class
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posted August 27, 2008 08:17 PM
I had the same problem, Shane. My impact gun wouldn't budge the nut, neither would my breaker bar. I took it to my buddies shop, he has a good gun, and zipped it off in a flat second. Do yourself a favor and get a GOOD gun and you'll have no problems.
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BobC
Pro
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posted August 28, 2008 01:40 AM
Same here, the impact gun in our workshop wouldn't shift it. We borrowed a new one from the Snap On man and that did it.
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ninja12
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posted August 28, 2008 03:53 AM
Increase the pressure in your tank, my tank cuts off at 120 psi and thats what I use.
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zx13r
Expert Class
Capt-America
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posted August 28, 2008 05:12 AM
I put a little WD-40 on mine and hit it with an impact. The first time, I did it I used a breaker bar, what a pain in the A** that was.
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ghostman
Expert Class
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posted August 28, 2008 05:45 AM
Is the sprocket nut a left or right hand thread?
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dubious
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posted August 28, 2008 06:03 AM
normal, right hand thread, and as mentioned and many have found out , adding a little heat will fuck the rubber damper on the stock sproket, but will loosen the loctite.
Be sure to direct the heat at the nut, not the shaft, this will allow the nut to expand more than the shaft and make life easier.
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neverknow
Novice Class
Posts: 79
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posted August 28, 2008 08:18 PM
Had the same problem using a lower end gun; could not break the nut. Purchased the Earthquake from Harbor Freight and came right off.
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Smooth_G
Expert Class
Posts: 228
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posted August 28, 2008 09:58 PM
the nut has a large surface area touching,,lots of friction,,my 08 had no locktite,,n the manual said to apply grease,,right,,i used blue locktite instead of red, i used a shitty harbor frieght impact ,,it said it had 300ft lbs capability, but u know them asians have small feet,,lol,,lol,
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MasterBlaster
Expert Class
Posts: 297
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posted August 29, 2008 05:48 AM
Well I got mine with a 3/4 breaker bar and a BFH.
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