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Reload this Page Dilemma-- PTO end of crank
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Old 02-16-2014, 06:52 PM
randallc randallc is offline
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Default Dilemma-- PTO end of crank
Deep into the process of rebuilding my 1250 with K301. Bought a used crankshaft, good fit, EXCEPT: Starting to put my PTO clutch back on and it is does not have the threaded whole in the end of the crank. It apparently came from a Cadet that used the set bolt to make contact with the Key.
Question: Can the Crank end be drilled and tapped while in the engine, or can I use one of the clamp on PTO clutches on the 1250? Or, does it all have to come back apart??
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Old 02-16-2014, 07:45 PM
mortten mortten is offline
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Here is a vid of a guy drilling a crank in the engine:http://m.youtube.com/watch?v=fO1JUnP7ZTo
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Old 02-16-2014, 09:25 PM
randallc randallc is offline
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thanks for the video. Maybe should talk to the machinist who. bored the engine to see if he can tackle it. He might have a something like that.
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Old 02-16-2014, 09:34 PM
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sawdustdad sawdustdad is offline
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The machine shop should have no trouble drilling and tapping the end of the crankshaft for you.
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Old 02-17-2014, 09:15 AM
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dvogtvpe dvogtvpe is offline
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actually if you own a drill and a tap and die set it isn't that hard if you can drill a straight hole. the cranks are cast iron so its easy to work with. you might want to measure the length. I thought there was a slight difference in length on the pto end. but I could be wrong. been a while
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Old 02-17-2014, 10:22 AM
782CC 782CC is offline
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Quote:
Originally Posted by dvogtvpe View Post
actually if you own a drill and a tap and die set it isn't that hard if you can drill a straight hole. the cranks are cast iron so its easy to work with. you might want to measure the length. I thought there was a slight difference in length on the pto end. but I could be wrong. been a while
Agreed. And drilling a straight hole is easier than you think. Where the vid can improve is you spin the part not the drill. The drill will center to the spinning object. The engine running is way fast but could be managed if cautious about the heat and plenty of cutting oil. And if the stars align, a drill running as well could bring drill RPM to crank down to what you need. The idea is futile if the engine running is the wrong way for the drill bit.
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