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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
The Mitsubishi 4G32 and you. A comprehensive guide to surviving poor financial decisions and overhauling a terrible engine.
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<blockquote data-quote="Scott Cee" data-source="post: 133975" data-attributes="member: 23817"><p>There isn't anything overly tricky about this engine, either from taking it apart or putting it together. It's all basic stuff. The main issue is parts.</p><p></p><p>Pulling the engine out is awkward:</p><p>[ATTACH=full]6115[/ATTACH]</p><p></p><p>To do this again as a full re and re, I would pull the radiator, muffler, and support off the top, and then cut out that center bar. This would allow you to pick the engine out (and back in) without a bunch of dragging, shoving, etc. One could just make some brackets to bolt that support back in after. If you're pulling the engine you should pull and clean the radiator and hydro cooler while you're in there anyway. Yes, you can get it in and out without doing this, but this is my comment in hindsight. The Bobcat manual literally says to hook up to the engine and drag it out, then support it while half out and rerig so you can pick it up straight. This is what I am doing in the above picture.</p><p></p><p>Squirrel fan and drive coupling viewed with the engine out:</p><p>[ATTACH=full]6116[/ATTACH]</p><p></p><p>Part of why I say adapting another engine is likely a better choice is how simple this design is for the drive assembly. The fan is what the drive coupling bolts to, and the fan just bolts to the flywheel with 6 bolts. Most flywheels could easily be turned on the lathe to accept this fan, and one would not even need to use a mill to drill/tap it for the 6 bolt pattern. Also, this was a standard pattern that Bobcat used, so a flywheel for whatever other engine you choose is possibly available from a wrecker. This is just my comment after having done all of this, yes, there is more to it.</p></blockquote><p></p>
[QUOTE="Scott Cee, post: 133975, member: 23817"] There isn't anything overly tricky about this engine, either from taking it apart or putting it together. It's all basic stuff. The main issue is parts. Pulling the engine out is awkward: [ATTACH type="full"]6115[/ATTACH] To do this again as a full re and re, I would pull the radiator, muffler, and support off the top, and then cut out that center bar. This would allow you to pick the engine out (and back in) without a bunch of dragging, shoving, etc. One could just make some brackets to bolt that support back in after. If you're pulling the engine you should pull and clean the radiator and hydro cooler while you're in there anyway. Yes, you can get it in and out without doing this, but this is my comment in hindsight. The Bobcat manual literally says to hook up to the engine and drag it out, then support it while half out and rerig so you can pick it up straight. This is what I am doing in the above picture. Squirrel fan and drive coupling viewed with the engine out: [ATTACH type="full"]6116[/ATTACH] Part of why I say adapting another engine is likely a better choice is how simple this design is for the drive assembly. The fan is what the drive coupling bolts to, and the fan just bolts to the flywheel with 6 bolts. Most flywheels could easily be turned on the lathe to accept this fan, and one would not even need to use a mill to drill/tap it for the 6 bolt pattern. Also, this was a standard pattern that Bobcat used, so a flywheel for whatever other engine you choose is possibly available from a wrecker. This is just my comment after having done all of this, yes, there is more to it. [/QUOTE]
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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
The Mitsubishi 4G32 and you. A comprehensive guide to surviving poor financial decisions and overhauling a terrible engine.
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