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Bobber
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Joined: Feb 09, 2014
Posts: 178
Location: Tri Cities, Washington
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 Posted: Sat Apr 22, 2017 8:25 pm Post subject: Throw out bearing |
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Just a question, does the throw out bearing spin when set up properly? I have about an 1 inch play.
Thanks
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Rusty, 1952 M38, Koenig hard top. |
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Bobber
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Location: Tri Cities, Washington
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| Posted: Sat Apr 22, 2017 8:32 pm Post subject: |
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I mean to say when it's neutral or in gear. I know it suppose to turn while it's engaged while shifting or holding in the clutch.
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Rusty, 1952 M38, Koenig hard top. |
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4x4M38
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Joined: May 30, 2014
Posts: 3447
Location: Texas Hill Country
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| Posted: Sat Apr 22, 2017 10:09 pm Post subject: |
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Rusty,
When the pedal is pushed in the clutch disc is disengaged from the flywheel
by the throwout bearing pressing on the fingers of the pressure plate.
The throwout bearing only spins when you push it against the rotating fingers.
You should have clearance between the fingers and the throwout bearing with
the clutch engaged and the pedal up all the way.
The manual specifies IIRC 1-1/8" free play of the pedal until the bearing starts
to contact the fingers. You should have a gap between the fingers and bearing
as well. I don't remember the distance, but it's here in another thread. 1/8"
minimum?
The easiest way to destroy a throwout bearing is drive around with your
left foot on the clutch pedal, putting just enough pressure on it to keep
the throwout bearing spinning all the time.
Hope this helps.
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Brian
1950 M38
MC11481
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Bobber
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Posts: 178
Location: Tri Cities, Washington
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| Posted: Sat Apr 22, 2017 11:23 pm Post subject: |
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Thus the window in the bell housing to verify and or measure for the 1/8inch?
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Rusty, 1952 M38, Koenig hard top. |
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4x4M38
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Location: Texas Hill Country
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| Posted: Sun Apr 23, 2017 6:25 am Post subject: |
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Yes you can do that but that is just a check. Proper set up starts with the pedal to cross shaft rod length, making sure all holes are not worn out of
round, all mounts are tight, clutch cable is the proper length, then setting the pedal free play adjustment. All of that should result in the proper clearance
between the bearing and the clutch fingers.
If you don't have any clearance and the bearing is riding on the fingers
then something i listed above is incorrect. Or the yoke may not be seated properly on the ball. Or, well you get the idea.
So I'd check your pedal free play first. Then pull the inspection plate
and see if the bearing has clearance. If not, follow your manuals and
start at the pedal and work your way back and around the linkages.
Take care,
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Brian
1950 M38
MC11481
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4x4M38
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wesk
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Location: Wisconsin
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4x4M38
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Bobber
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Joined: Feb 09, 2014
Posts: 178
Location: Tri Cities, Washington
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| Posted: Mon Apr 24, 2017 9:04 pm Post subject: |
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Yes. my TOB seized up and started squealing, from other vehicles I've owned I knew what it was. Pulled it apart and noticed the 3 little bolts were worn down a little. So I replaced the bolts and TOB and started the process to get it back to work. Just reading, some TOBs were made to ride the fingers. So I was just wondering. I do have the spring hooked up pulling towards the tranny. It shifts and works great. Thanks.
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RICKG
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Posts: 1740
Location: SO IDAHO
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| Posted: Tue Apr 25, 2017 9:40 am Post subject: |
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3 little bolts? Sounds like you have a HD 9-1/4" Rockford pressure plate. Here's a pic of the one in my 3A.
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RICKG MC 51986 DOD 01-52, '50 CJ3a |
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4x4M38
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RICKG
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| Posted: Wed Apr 26, 2017 7:13 pm Post subject: |
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Brian..No snow but the wind is blowing like a SOB.
Response Bobber???????????
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RICKG MC 51986 DOD 01-52, '50 CJ3a |
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wesk
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Location: Wisconsin
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| Posted: Wed Apr 26, 2017 9:37 pm Post subject: |
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A wee little bit more reading and you would have had your answers already.
| Quote: | So. Does that change the factory pedal free travel adjustment?
NO
Another issue. In several posts I've seen reference to packing the throwout
bearing like you would before installation.
NO they are pre-lubed and not re-lubeable. Grease references are primarily about the face of the bearing and the groove of the bearing.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
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