Farmall Super A, AV, 1939 - 1954
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Wed Feb 22, 2012 9:11 am
Old Ugly, my latest Super A, has a semi-stripped out implement mounting hole on the bellhousing, I am guessing from someone running a fertilizer attachment for a long time with loose bolts. I've never used a helicoil, but am familiar with them and have read the how-to article on the forum. Has anyone had to actually repair one of these holes on a Super A-140? Only thing I am worried about is finding a hand-held drill with enough OOMPH to drill the hole out. I have access to a small, "tabletop" drillpress and have gone so far as to consider removing the gas tank, and "straddling" the bellhousing with it to drill the hole, but I don't think the work table on the drillpress is deep enough.
Ideas or suggestions are very much welcome!
Wed Feb 22, 2012 9:47 am
check a local tool rental place the Hole Hawg type drills are real good for that type work. The long handle makes control a lot easier. I do not know if it is mentioned in the how to, but do NOT use oil when drilling cast iron. You can do it with a smaller drill, it just requires going slower and being more careful.
I have one of these with a 5/8 chuck which works quite well for this.http://www.harborfreight.com/compact-2- ... 97622.html
Wed Feb 22, 2012 11:16 am
Al, I have had great luck with this. It is Permatex Thread repair kit, part # 765-1248. I get it at NAPA for $13.50
I have repaired final drive bolt holes, carb inlet threads, anywhere the bolt is loose and sloppy. It has held up great in both the finals and carbs.
It withstands chemicals and is good up to 128ft lb of torque.
Make sure you use a clean new bolt, clean the threads in the hole real well, then make sure you use plenty of the release agent on the bolt.
It says wait 5 min before removing bolt, I like to let it sit a couple hours.
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Wed Feb 22, 2012 12:18 pm
Al any 1/2 in drill will do the job , make sure it has a handle on the side so it does not grab and spin out of yout hand, the cast is EZ to drill into
Get the right size bit
Wed Feb 22, 2012 1:48 pm
I've used this type of solid insert several times with good results. It takes a standard drill and tap.
Picture is from McMaster-Carr
Wed Feb 22, 2012 1:53 pm
As in my Helicoiling Ellie's Rear Final
, I found this drill to be the cat's meow when it comes to heli-coiling. Variable speeds are really useful. You should be able to find one of these at a yard sale, flea market and such.
Wed Feb 22, 2012 8:43 pm
Rudi, I have a twin to that drill,except mine does not have a toggle switch on the handle.
Wed Feb 22, 2012 8:48 pm
I remember. Mine is a Mastercraft a house brand from a major supplier but I can't remember who it is. Is it a Skil, B&D or ????? I love it, it really is one heck of a drill
Lots of torque and variable speed. The toggle is just for forward/reverse.
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