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Old 08-12-2013, 08:05 AM
chuggins08 chuggins08 is offline
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Default Bolt holding clutch on crankshaft keeps loosening

I have a centrifugal clutch on my 11hp honda clone engine. We installed a graded bolt with loctite and the bolt comes loose after a minute of riding down the street. Any ideas on what could be causing this to happen???
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Old 08-12-2013, 08:10 AM
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Originally Posted by chuggins08 View Post
I have a centrifugal clutch on my 11hp honda clone engine. We installed a graded bolt with loctite and the bolt comes loose after a minute of riding down the street. Any ideas on what could be causing this to happen???
It shouldn't move with loctite. Which one are you using? How much are you using? Are you sure you are tightening the bolt enough?
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Old 08-12-2013, 08:12 AM
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Torque the bolt down using some Loctite #242 blue. Make sure threads (and hole) are clean and dry. A lock washer wouldn't hurt either, but there's no way that should be coming loose.
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Old 08-12-2013, 08:57 AM
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What is make/model clutch?
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Old 08-12-2013, 09:19 AM
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its a noman enforcer clutch 10-tooth. I am using the blue colored loctite and using a lock washer....
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Old 08-12-2013, 09:20 AM
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I am tightening it as much as I can. Maybe the crankshaft was not dry when i installed the bolt with the loctite
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Old 08-12-2013, 09:22 AM
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How are you holding the crank from rotating while tightening?
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Old 08-12-2013, 09:24 AM
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pipe wrench
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Old 08-12-2013, 09:26 AM
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On WHAT?!?!

There is no place for a pipe wrench anywhere near an engine!
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Wrench, Wheel, Wreck, Repeat...
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Old 08-12-2013, 09:29 AM
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the clutch does not go all the way to the back of the crankshaft, so there is room behind the clutch to hold it with a pipe wrench
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Old 08-12-2013, 09:43 AM
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I think at this point ....
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Old 08-12-2013, 09:44 AM
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Just... no.
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Wrench, Wheel, Wreck, Repeat...
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Old 08-12-2013, 09:50 AM
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OH man I think we traumatized the mod... uh oh.. not good...
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Old 08-12-2013, 09:54 AM
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Yeah, great. Who do I send the therapy bill to?
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Wrench, Wheel, Wreck, Repeat...
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Old 08-12-2013, 09:57 AM
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I recommend Dr. Ben Dover. Three chairs...no waiting.
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Old 08-12-2013, 09:59 AM
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Think I've heard of him. He work with that Russian fellow, Dr. Trnyrhedncov?
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Treat it as you would an aircraft frame and you should have no problems. -Name Withheld
The Manual- "Just the manufacturer's opinion of how to put this together."- Tim "The Tool Man" Taylor
Put down the wrench, and come out with your hands up!- Me!
Wrench, Wheel, Wreck, Repeat...
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Old 08-12-2013, 10:03 AM
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heres some pics
Attached Thumbnails
photo (2).JPG   photo.JPG  

photo (1).JPG  
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Old 08-12-2013, 10:04 AM
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Mount the clutch all the way on to the shaft.
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The Manual- "Just the manufacturer's opinion of how to put this together."- Tim "The Tool Man" Taylor
Put down the wrench, and come out with your hands up!- Me!
Wrench, Wheel, Wreck, Repeat...
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Old 08-12-2013, 10:08 AM
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Im assuming there is an integral key involved, but I cant see this hanging off there that far as all the way on.
Is all the setscrews backed off before install. Is the key fitting the keyway properly. (like maybe the keyway isnt machined properly)
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Old 08-12-2013, 10:13 AM
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it has set screws as the key. I am not saying its all the way on, the drum will not go all the way in the shaft, it just gets bolted onto the end of the shaft. The other part of the clutch can go all the way on, but that doesnt make sense to do that.
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