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10-23-2009, 01:01 AM
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#1 |
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Registered User
Join Date: Aug 2009
Location: Tomball, TX
Posts: 578
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Rusty Bolts?
whats the best way to get undone rusty corroded bolts without grinding them off?
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'68 C10 LWB 6.2NA/NP833 3.73's |
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10-23-2009, 01:14 AM
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#2 |
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Registered User
Join Date: Aug 2009
Location: MN
Posts: 22
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Re: Rusty Bolts?
Heat the nut to red hot with a torch, then use an impact to remove.
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10-23-2009, 07:48 AM
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#3 |
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BOHICA
Join Date: Mar 2008
Location: Stewartville, MN
Posts: 440
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Re: Rusty Bolts?
heat the object that the bolt is threaded into. Heat all around the bolt, not the bolt. If you heat the bolt it is going to expand in the hole. It will probably get brittle if you heat it to red hot. Any good penetrating oil may help, some people heat the bolt a little and melt some kind of wax on it. I guess the wax will penetrate the threads, don't know never tried that one.
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Trying to save someone from their own stupidity is like teaching a pig to dance. It is a waste of your time, and it annoys the pig! |
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10-23-2009, 08:02 AM
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#4 |
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Registered User
 
Join Date: Aug 2003
Location: VA
Posts: 740
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Re: Rusty Bolts?
Rusty Bolts!!?? last I heard he was a late-night DJ in upstate New York .
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1968 SWB. GMPP 350/350 Turbo Trans, Edelbrock Performer & Carb. Hedman Hedders, Hooker Aerochambers Mufflers. Tuff Stuff Alternators. Remember, no matter where you go, There you are. Gary |
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10-23-2009, 08:39 AM
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#5 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Rusty Bolts?
i like to sray them with pb blaster or gibbs oil loads of stuff you cant safely put a torch on sso i'll just try to loosen with a breaker bar turn counter clockwise a turn or two then clockwise a bit to clear threads slow but sure// on some bolts the easy way is just to use a real big breajker bar and turn clockwise to ssnap them off
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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10-23-2009, 08:50 AM
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#6 |
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THE DAMN YANKEE
Join Date: Sep 2006
Location: Southern MD
Posts: 551
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Re: Rusty Bolts?
1 st PB blaster them
2nd use a drift punch and hammer and smack it a couple times.to break the rust loose 3rd1/2 turn left 1/4 turn right until it comes out, |
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10-23-2009, 06:32 PM
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#7 |
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Registered User
 
Join Date: Jan 2007
Location: Central Coast California
Posts: 1,026
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Re: Rusty Bolts?
As some have recommended, I've over tightened some of my 'burb bed bolts until they snapped...
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1972 K20 Suburban 5.7/700r4/NP205 Dana 44/H052 Sold  1972 C10 5.3L/4L60E 12bolt 5Lug - Sold 1971 K5 Blazer 6.0L LQ9 4L60E NP205 Dana 44/H052!!!  1970 K3500 1ton CrewCab 8.1L/Allison1000/NP205 Dana 60/14B!!!! - Sold 1984 K10 SWB 7.4L/4L80e/NP208 Corp 10/12 bolt Sold 1988 V30 CCLB 7.4L/TH400/NP205/Dana 60/Dana 70/3.73!!! (Sold) 2003 K2500HD 8.1/Allison1000/NP263
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10-23-2009, 06:35 PM
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#8 |
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Registered User
Join Date: Apr 2005
Location: Monroe, WA
Posts: 298
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Re: Rusty Bolts?
I just discovered aero kroil. At $13 a can I choked but it works much better than pb blaster. I use kroil, heat, and an impact, one at a time until it comes apart.
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67 K10, lwb, fleetside, 327, 4spd, 205, cab and 3/4 frame swap, 14 bolt, big window, and a "rustoleum roll job" |
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10-23-2009, 06:44 PM
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#9 |
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69 Fleetside
Join Date: Mar 2009
Location: Lake Stevens, WA
Posts: 333
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Re: Rusty Bolts?
I used a dremel to grind a line in the nut, then stick a flathead screwdriver in it and twist blowing it apart...bolt pops right out...
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10-23-2009, 06:49 PM
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#10 | |
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Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,123
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Re: Rusty Bolts?
Quote:
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10-23-2009, 09:43 PM
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#11 |
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Registered User
Join Date: Aug 2009
Location: St. Paul MN.
Posts: 1,996
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Re: Rusty Bolts?
A trick i learned is to heat the nut than hit it with cold water in a spry bottle.
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10-23-2009, 10:17 PM
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#12 |
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Registered User
Join Date: Jun 2008
Location: South Florida
Posts: 11,375
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Re: Rusty Bolts?
go buy your self a six pack of coca cola and pour coke over every rusted bolt wai a few minutes then watch it come right off...unbelievable....
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Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild |
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10-23-2009, 10:30 PM
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#13 | |
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Registered User
Join Date: Aug 2009
Location: St. Paul MN.
Posts: 1,996
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Re: Rusty Bolts?
Quote:
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10-24-2009, 12:58 AM
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#14 |
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Registered User
Join Date: Aug 2009
Location: Tomball, TX
Posts: 578
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Re: Rusty Bolts?
thanks yall for all the info, I guess I'll try some of everything.
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'68 C10 LWB 6.2NA/NP833 3.73's |
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10-24-2009, 03:29 AM
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#15 |
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70 Chevrolet=Obsession
Join Date: Jun 2009
Location: nice ca
Posts: 1,067
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Re: Rusty Bolts?
I made a discovery. I tried Liquid wrench in the spray can. It worked OK but nothing special. Then I bought Liquid Wrench liquid in the little dropper bottle at NAPA. Stuff works ten times better than the spray version. How I do it is to drop some Liquid Wrench on the threads, the wait about a half hour, then take a ball peen hammer and bop it a couple of times. Then I take a big, ugly Craftsman 1/2" knuckle buster, swear a bunch and that usually gets it off. If it doesn't, then I try new swear words!
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 I'm Just like my truck. Old, Ugly and Grouchy. Except my truck starts easily in the morning and doesn't smoke! IT'S NOT EASY BEING GREEN! -Kermit the frog 1970 Chevrolet C-10 Longbed Stepside : 350, Muncie M20, 3.08 GM corp. positraction Forest green exterior/light green interior(Where all my money goes) 1996 Toyota Corolla (Parts runner) |
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10-24-2009, 11:19 AM
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#16 | |
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Moderator
 
Join Date: May 2007
Location: Southern Cal
Posts: 20,001
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Re: Rusty Bolts?
Quote:
I use PB blaster and a torch. If that doesn't work, an air chisel and off they come.
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man Last edited by leddzepp; 10-24-2009 at 11:19 AM. |
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10-24-2009, 11:49 AM
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#17 | |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: Rusty Bolts?
A screw style "Nut Splitter" can be pretty handy sometimes. It may not be the best choice in every case, but they do work very well.
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You can review the site's rules here. Quote:
Bad planning on your part does not necessarily constitute an instant emergency on my part.... The great thing about being a pessimist is that you are either pleasantly surprised or right. 
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10-24-2009, 02:04 PM
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#18 | |
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Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,134
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Re: Rusty Bolts?
Quote:
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10-24-2009, 04:49 PM
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#19 |
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Registered User
Join Date: May 2009
Location: Eliot, Maine
Posts: 1,314
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Re: Rusty Bolts?
treat first with rust penetrant and let sit.
if that doesn't work....heat it up with map gas and then cool it rapidly with a squirt bottle (water). try that several times. this shock technique has helped my dad on countless projects. |
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10-24-2009, 07:41 PM
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#20 |
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Registered User
Join Date: Jun 2007
Location: Dansville, NY
Posts: 248
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Re: Rusty Bolts?
1st, Kroil is great, Expensive though, but you get what you pay for. 2nd a torch to heat it (I presume you don't have an Oxy-Acetylene set up) Mapp Gas might do it if the nut is not too big,(Propane will likely not get hot enough), A screw type nut buster if you can get on it, lastly a good old fashion chisel.
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DIY body and paint work is cheap, making it look good... priceless -------------------------------------------- My Toys; ’26 Ford Model T ‘72 Triumph Spitfire 1500 '09 "The Briggs Flyer" Gettin' High. |
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