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Murph-NC 
Orange Level
Joined: 11 Sep 2009
Location: Western NC
Points: 797
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 Topic: B with a knock?
Posted: 26 Nov 2009 at 3:43pm |
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While running, but not moving, by '50 B has a noticeable knock or thump about every second or so... at about 1/4 throttle. I can't really hear it, but I can feel it thru my feet. I guess it's there when it's moving too, but I don't notice it as easily. Any ideas?
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Joe/NC
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Joined: 11 Sep 2009
Location: Smithfield, NC
Points: 265
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Posted: 26 Nov 2009 at 4:57pm |
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Throw out bearing would be my 1st guess, try greasing it and see if it changes the amount of knock or thump.
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Cal
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Joined: 14 Sep 2009
Location: East Woodstock
Points: 172
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Posted: 26 Nov 2009 at 9:01pm |
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A loose front pulley wil feel like that also, loosen belt to check it. Cal in Ct.
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Murph-NC
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Joined: 11 Sep 2009
Location: Western NC
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Posted: 26 Nov 2009 at 9:24pm |
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Thanks guys. I'll check both. Joe, I'll show I'm a rookie and ask how to grease the throw out bearing. I'm sure I could find it in my manuals, but I'll ask here first. Thanks again.
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bruce
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Joined: 15 Sep 2009
Location: jacobson mn.
Points: 45
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Posted: 27 Nov 2009 at 5:54pm |
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I had a friend with similar problem. sounded like it could be in trans, rear end or pto. we pulled it apart & found out that the u joint in the drive shaft was siezed up. put in different drive shaft from his parts & problem was solved.
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CTuckerNWIL
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Joined: 11 Sep 2009
Location: NW Illinois
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Posted: 27 Nov 2009 at 6:54pm |
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Murph, There is a hole in the bottom of the torque tube with a snap in cover. Pull the cover and you will be able to see the TO bearing. Some newer bearings are not greaseable. You'll just have to look.
Edited by CTuckerNWIL - 04 Dec 2009 at 7:11pm
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Murph-NC
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Joined: 11 Sep 2009
Location: Western NC
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Posted: 03 Dec 2009 at 6:37pm |
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I greased the bearing today and the knock stopped! Thanks for the help guys. I also removed the cultivator frame, so now my next project is a step. I'm tall, but that's still a long first step.
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GregLawlerMinn
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Joined: 11 Sep 2009
Location: Lawler, Mn
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Posted: 04 Dec 2009 at 1:40pm |
Murph
If the noise went away after greasing the TO bearing; you may want to schedule a splitting and replacing the TO bearing in the near future. Have seen several were a loose TO bearing ate up the collar it rides on (and a few that it wore out the fingers on the pressure plate). Then you have an expensive fix.
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Murph-NC
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Location: Western NC
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Posted: 04 Dec 2009 at 3:06pm |
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Thanks Greg! That's good to know.
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