Posted by Melvin Ware on September 09, 2009 at 08:16:33 from (4.152.105.21):
Have been trying for some time to replace the generator belt on my Farmall M. (It's getting pretty ragged.) To do so requires first slackening the water pump belt for which I could find no adjustment. However, thanks to information from this forum, I located the set screw and locknut securing the adjustable water pump pulley to the shaft along with instructions for loosening the water pump pulley to slacken the belt. The locknut came off easily but the set screw would not budge, even after weeks of soaking in PB. (Possibly because it was set into the shaft threads and not into the slot where it should be.) Talking to a friend, he suggested we try an impact screwdriver which he happened to have. That did the trick! Now, before I go any further, I have several questions;
1. Are the threads on the adjustable pitch water pump pulley standard right-hand threads as it appears?
2. I was told to use a brass rod to tap against the hump on the pulley hub as the proper way to loosen the pulley. Why brass rather than a steel rod and where might I find one?
3. Would it be okay to replace the slotted set screw with a square head screw to make it easier to remove should I ever do this again?
4. Is it okay to put some anti-seize compound on the thread pulley shaft and the set screw threads?
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