Re: waterpump bolts on Farmall H

Posted by The Red Baron on January 07, 2003 at 08:44:25 from (198.81.27.16):

In Reply to: waterpump bolts on Farmall H posted by Yellott Canby on January 06, 2003 at 19:20:20:

I had a similiar problem with the fan brackett on our F-12. It would be the same housing where the water pump would go if F-12s had been equiped with water pumps. Eventually I snapped off the bolt. It was two inches long and in the end I doubt that there was anything else I could have done. That bolt had probably been in there longer than I had been alive. I had to take the front axle assembly from off the front of the tractor since I didn't have room for a drill and drill the whole thing out. A process (at least for me) fraught with nerve racking anxiety. I must have taken close to two-three hours at least to make sure that the bolt face was filed flat so that I could properly center a hole and then drill it out by 64th inch increments. The bits seemed to bind and catch with an ungodly snap that I was certain would result in a broken off bit in the stuck bolt in spite of a nearly constant stream of WD-40. I proceeded with at a glacial pace and in the end I got it out without damage to the threads of the block. I still have the remnants. It was a surprise to me how after being centered at the start almost all that was left in the end were the threads that easily spun out after all that heat vibaration and loss of the rest of the internal bolt shank.
I have had good success in the past by heating the surrounding metal with a propane torch. I would be afraid to use an acetylene torch myself, though I realize it probably could be done. A propane torch for me seems to disperse the heat evenly and does not see run the risk of getting anything too hot. An added trick I have found to have gotten out a few bolts that would not otherwise not come out was after heating the surrounding metal was to shoot a stream of WD-40 or liquid wrench on the bolt head shank or exposed threads that are frozen. The resulting cooling sometimes will be enough to tip the balance. If you snap that bolt head off, (as in truth I would not be surprised to see happen given the length of the bolt.) You still might get it out of there by repeating the heating cooling process and using a set of vise grips to twist the exposed shaft once the pump body is removed. I have gotten a few out that way myself. There seem to be times when a vise grips on the exposed shaft will give you more twist than a wrench would have given you on the head of the bolt.
As a final bit of advice based from experience I would recommend that you replace the water pump bolts with either brass or bronze bolts along with plenty of anti-seize. They are somewhat costly and you may have to order them, but I know it was not a process that I ever wanted to repeat, or even have the next owner be forced to endure after I am gone. I do the same thing with the bolts on any radiator hose elbow for the same reason. (and the same sorry experience)I certainly wish you luck! I'm sure it can be done. Just be very, very careful, go slow and don't force anything prematurely.

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