Little Mule

Little Mule
Damn fine piece of equipment

Sunday, February 17, 2008

Trying to save the coupling


(Sorry for the blurry picture.) This is the main coupling that connects the engine to the transmission. Two of the four mounting bolts were missing when I removed the engine from the tractor. They were twisted off, probably broken during use I'd guess. I tried to recover this part by using a bolt extractor to dig the broken pieces out, but they weren't budging and I broke the extractor bit inside one of the bolts. Ho hum. For the moment I'm going to let this piece just sit. I'll price out a replacement - it'll have to be pretty expensive to warrant any more work on this thing.

2 comments:

Dave said...

So, the extractor is kinda like a drill bit that grinds out the piece left when it broke? That would be a pain to have it break inside the part it was extracting. Arghh

socket said...

Yeah kinda. You drill a hole in what's left, then the exractor screws into the hole with a reverse thread. The more you turn, the more it grabs what's left. It's supposed to grab and turn the remaining bolt out (before it breaks) but it doesn't always work that way. Problem is that once it breaks you're pretty screwed, because the extractor is hardened tool steel and is nearly impossible to drill/cut/grind out. Bummer.