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Broken Input Shaft Bearing? :(

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Old 08-19-2014 | 08:27 PM
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Broken Input Shaft Bearing? :(

Hello, I started a thread earlier about a broken motor mount. I've since ordered a replacement mount and changed it but the knocking sound remains. the sound occurs in neutral when my foot is off the clutch. When I depress the clutch, the sound goes away. Here's a YouTube link: sorry for the bad camera work, I was focusing on the sound more than the video.

 
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Old 08-21-2014 | 04:19 AM
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Anyone??????
 
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Old 08-22-2014 | 01:35 AM
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If it's coming on and off with the clutch engaged vs disengaged, I'd think it might be something to do with the clutch assembly or the transmission. Whichever one it is, I assume you'd have to remove the transmission and/or the clutch to troubleshoot it. So if I were you I would just order parts and pick a day or two to begin taking things down.

Could be the pilot bearing, throwout bearing, maybe pressure plate? Might just need to take it apart and have a look, because you'd have to take it apart to replace any damaged parts anyway.
 
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Old 08-23-2014 | 01:30 AM
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Originally Posted by doctordoom
If it's coming on and off with the clutch engaged vs disengaged, I'd think it might be something to do with the clutch assembly or the transmission. Whichever one it is, I assume you'd have to remove the transmission and/or the clutch to troubleshoot it. So if I were you I would just order parts and pick a day or two to begin taking things down.

Could be the pilot bearing, throwout bearing, maybe pressure plate? Might just need to take it apart and have a look, because you'd have to take it apart to replace any damaged parts anyway.
I've heard that if the throwout bearing is gone, it makes noise when you depress the clutch, not when it is released (like in my situation). Anyway, my mechanic quoted 300$ for the job. I know I could probably do it myself but it's soooo much hassle. I don't think I'm game to try and remove the whole transmission. I don't have a lift, I'm just working with axle stands in pop's driveway so 300$ is reasonable I think. I might get a clutch kit and see if he can change the clutch while he's in there. Im only at 87k kilometers so the clutch is for sure still good but I dunno, I'd rather only pay 300$ once than have to pay again in 20-4ok kilometers
 
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Old 08-23-2014 | 01:40 AM
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$300 is a great price, and he would be removing the clutch anyways to change pilot bearing.


Exedy makes a great clutch kit, they usually rival or exceed OEM specs.

Grab a set of axle seals and a change's worth of tranny fluid, grab 3 quarts of honda MTF just in case. Pulling axles out drains fluid
 
  #6  
Old 08-23-2014 | 02:04 AM
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That sure sounds like a release (throw out) bearing riding on the clutch diaphragm (pressure plate) spring. It is hard to tell not being there. I have never pulled a Honda Fit clutch but on those I have worked on there were a couple of clips to hold the bearing away from the clutch when it is disengaged. Also there is an adjustment procedure in the 2009-2010 Fit Maintenance manual page 12-5. All I have here is paper copy so I can not post it. The fix may be as simple as adjusting the clutch pedal according to the manual to allow clearance between the release bearing and the clutch diaphragm (pressure plate) spring.
 
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Old 08-23-2014 | 03:04 PM
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Originally Posted by n9cv
That sure sounds like a release (throw out) bearing riding on the clutch diaphragm (pressure plate) spring. It is hard to tell not being there. I have never pulled a Honda Fit clutch but on those I have worked on there were a couple of clips to hold the bearing away from the clutch when it is disengaged. Also there is an adjustment procedure in the 2009-2010 Fit Maintenance manual page 12-5. All I have here is paper copy so I can not post it. The fix may be as simple as adjusting the clutch pedal according to the manual to allow clearance between the release bearing and the clutch diaphragm (pressure plate) spring.
Hmm, I'll check my Helms manual for that adjustment. Do you remember what the subcategory was? Obviously it's probably in the manual transmission section but was it in the troubleshooting section?

Thanks for the heads up. I'll take to my mechanic for a listen and if it's just an adjustment I'll do it myself.
 
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Old 08-24-2014 | 05:24 AM
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In the Honda manual it was section 12 the clutch was listed just prior to the section with the manual transmission. I have never seen a Helms manual for the fit so I do not know how it is organized. I was hoping someone here had the manual electronically and could send you page 12-5.
 
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Old 08-24-2014 | 07:06 PM
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Originally Posted by n9cv
In the Honda manual it was section 12 the clutch was listed just prior to the section with the manual transmission. I have never seen a Helms manual for the fit so I do not know how it is organized. I was hoping someone here had the manual electronically and could send you page 12-5.
Thanks. The Honda manual for the GD3 is made by helms, so yours is probably also made by them. I just looked in my manual and the clutch adjustment is exactly at the same page. So you suspect that the clutch is not disengaging fully even with the pedal raised?

I did notice a racing/revving sound with the pedal completely pushed in when downshifting (when pushing the shifter in second gear with the clutch to the floor). Could it be the clutch is not fully disengaging and rubbing on the pressure plate?
 
  #10  
Old 08-24-2014 | 10:24 PM
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I am GUESSING that the clutch linkage may be holding the release bearing up against the pressure plate. It probably is not holding it tight enough to make the clutch slip, but it is touching just enough so the bearing is not disengaging completely and dragging on the pressure plate. If this is true you might get by just adjusting it back slightly. You also may end up having to replace the release (throw out) bearing because it has been spinning for who knows how long and may be badly worn. If you can adjust it back just slightly and the noise goes away, you may get by not having to do anything more.
 
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