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Message: <blockquote data-quote="6brnorma" data-source="post: 75661" data-attributes="member: 5914"><p>Bobcat……I have always worried about the possibility of breaking one or both of those small bolts. It would definitely be best if you could "easy out" the broken bolt. If you try to drill 'oversize' you will hit the crank immediately so I would use a counter clock bit to start a pilot hole for the easy out, hoping it would back out with just the bit. I'm going to ask a couple of questions…..don't be offended. First, you did remove the crank retaining bolt inside the sheave before you tried to pull the sheave? and secondly….when you put in the two small bolts, they were short enough so they "shouldered" up snug against the sheave but don't hit the crank acting as a set screw? I have probably removed a couple hundred of those sheaves in my life using this method…..with some heat on the sheave and then a good smack or two with a rubber mallet, I have never had to do anything more…..it just pops right off. If you have done all those things my next move would be to get some Kroil or another penetrating oil in there to help. Don't break that sheave……it's cast and expensive. Also….when you get back to the point of trying to pull the sheave…..use grade 5 or better bolts in the side of the sheave and be sure they are short enough to not hit the crank and yet shoulder up to the sheave. Feel free to ask questions…..lets get this bugger fixed.</p></blockquote><p></p>

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