H Draw bar mount bolts

Carlton

New User
The 3 bolts to the bracket under the tractor that the end of the draw bar hooks to are broken off on my H .
I have tried an easy out without success and I was wondering how deep can I drill ? How long are the bolts ? I thought if I could drill all the way thru the bolt I could spray penetrating oil up into the hole and get it on top of the bolts .
Can I use heat , and how much .
Any and all help would be appreciated .

Thank you for your time .

Carl
 
They are about 1.25" into the casting (IIRC) but the best method is to weld a nut to the existing material then let it cool and back it out. To hold the nut in place a piece o plumbers tape about 6 inches long duct taped to the casting on each end will hold the nut upside down. The heat of the arc weld disrupts the bolt threads rust and they are usually not radically rusty unless they have been broken for a long time, and exposed to the elements.
Drilling up into them is Ok. feel on the drill as it goes through the bolt, and into the space above the end of the bolt is important as who knows what bolt was used in the hole over the years. Even if it is bottomed out in the partial threads, it is pretty easy to feel the difference when it goes through the bolt and into the cast iron. The shavings from cast iron are near powder, the bolt will be harder, and make curled swarf. The best easy outs are not spiral, they are a square taper and straight sided. These dont swell the thing being removed, they just turn on it after being pounded in a ways. Jim
 
WOW , great feedback and instructions .
I won't be able to work on it until tomorrow but I feel better already .

Thanks again .

Carl
 

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