354 international harvester

[robbie lockhart]

I want to change the alternator belt, but I am having troubles removing the pulley on the engine. It is a threaded pulley with a set screw. I have the set screw out but the pulley will not budge. any suggestions?

 

[DJ54]

Sounds like the same style of adjustable pulley on the H's & M's. I had a stubborn one on an H years back. It took cleaning the threads real well, and some good penetrant. A 50/50 mix of Acetone, and automatic trans. fluid work great..!! Wish I'd have known that back then.

The H & M pulley's are cast, and have a nub sticking out on the front. I ended up taking a piece of 3/4" X 12" or so of square oak, using it like a punch and tapping lightly on the wood, against either side of the nub to get it broke loose. Just kept working it back & forth, and finally clear off, so as to give it a good coat of never seize for the "next time".

 

[robbie lockhart]

Thanks for the info. I noticed that there is 4 notches in the threaded part for the set screw to screw down into. The previous owner must not have realized this and tightened the set screw right into the threads. I might try drilling where the set screw was to get rid of the damaged threads. Not sure what else to do. Have you ever seen that problem before? Any ideas what to do with it?

 

[DJ54]

You'd take a chance on messing up the threads for the set screw. Unless you drill out the hole for the set screw to the next size, and rethread.

Unless you'd bump it back and forth like I mentioned, it may eventually cut through the messed up threads. Your call...