tough nuts
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- 40C crawler
- Posts: 16
- Joined: Thu Mar 06, 2008 6:35 pm
- Location: Saskatchewan, Canada
tough nuts
Hey all
Just started tearing my 420 down and quickly found the bolts dont want to move some nuts and bolts i was able to cut but the bolts that hold the track frame to the cross members i cant budge there hard to heat as well any advice would sure be helpfull
Just started tearing my 420 down and quickly found the bolts dont want to move some nuts and bolts i was able to cut but the bolts that hold the track frame to the cross members i cant budge there hard to heat as well any advice would sure be helpfull
- carolina crawler
- 430 crawler
- Posts: 99
- Joined: Mon Apr 30, 2007 1:51 pm
- Location: marietta ga/marietta sc
Air Tools are the saving grace for old machines, have at least a 60 gallon air tank, 5/8 hose with the same for the fittings..3/8 works , but that extra volume does wounders....use a good quality impact gun, ingersole/snap on/or one made for commerical /industrial use,no tawainy stuff... and a pair of gloves to protect your hands.lots of heat and air pressure, along with a strong forearm, will slove your problems, if that dont work, have a cool drink, let your arms chill, and do it again.....until IT breaks.....if Man built it, man can break it.......good Luck.....Mark Cc
1978 350b loader w/winch
- Eric.MacLeod
- 440 crawler
- Posts: 120
- Joined: Sun Feb 10, 2008 9:15 pm
- Location: wells,maine
rusted bad
the bolts on my track frame are rusted bad, no doubt that they will break off easily if turned , should i break them all off ,then try to get out, or just leave them alone and hope they dont break while playing around with it?
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- 40C crawler
- Posts: 16
- Joined: Thu Mar 06, 2008 6:35 pm
- Location: Saskatchewan, Canada
Such bolts are easy to snap off big wrenches - even grade 9 or better which you won't find in that crawler. Getting a bolt out in one piece is much better that breaking one off and then trying to drill it out later.Johnneypopper wrote:Are those bolts hardened steel or what I would have thought they would be hard to twist off
Try the heat as Lavoy mentioned. If no go - get a rosebud on your torch - get the area hot enough that it glows a little -and then hit it with cold water. Repeat is necessary. Then, after it's cool - try removing the bolts.
Only problem with heating and quick quenching is that it will harden the materials, which in turn makes them more brittle or apt to crack in future service. How brittle depends on how hot the piece has gotten, how quickly it was cooled, and how many times the cycle was repeated. No problem with a spoon full of this medicine, but to much may hurt you. Just my two cents worth. Mark
Heat the nut and then apply candle wax ,paraffin wax not bee's wax , has worked for me on other nuts , bolts and a few sleeves over the years .
Dan
Dan
1956 420C with GSC blade
Tools are to men as shoes are to women , you can never have too many !!
Used diesel engines are an adventure any way you look at them !!
Tools are to men as shoes are to women , you can never have too many !!
Used diesel engines are an adventure any way you look at them !!
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