John Deere 1939 L clutch

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JohnG
MC crawler
MC crawler
Posts: 2
Joined: Sun Dec 08, 2013 1:15 pm
Location: Port Alberni, BC, Canada

John Deere 1939 L clutch

Post by JohnG » Sun Dec 08, 2013 7:03 pm

I appreciate that the L is not a crawler, but one of the fellows on another JD forum recommended I ask my question here as apparently some of you are very knowledgeable on JD clutches.

Anyone know the correct setting for the clutch fingers on an L, a 1939 with Hercules NXB engine 8 1/2" clutch. The clutch was not disengaging correctly and since I had her apart for painting, I removed the bell housing for a took-a-look. With a straight edge across the top of the clutch drive, 2 of the fingers were 9/16" away, and the third stud was broken. I assumed the 2 were correct, but on reassembly with 3 studs and the fingers set at 9/16", the face of the pressure plate would be 3/8" from the flywheel face, the same thickness as the clutch disk. Or, if someone knows how close the pressure plate should be from the flywheel (without the clutch disk installed), that would do the trick. Thanks

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jtrichard
350 crawler
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Post by jtrichard » Sun Dec 08, 2013 10:48 pm

Is it the same disc? or a new one.... if the disc is 3/8" thick and you are having to press the fingers to 9 1/16 and you have 3/8 space that should be correct
2010 with 622 dozer with mod. 35 ripper and a 2010 with 622 dozer bought in 1969 and a 2010 loader with drott and mod. 36 ripper

JohnG
MC crawler
MC crawler
Posts: 2
Joined: Sun Dec 08, 2013 1:15 pm
Location: Port Alberni, BC, Canada

Post by JohnG » Mon Dec 09, 2013 8:54 am

No, the 9/16" is the clearance from the top of the disk cover to the top of the release fingers (using a straight edge across the top and measuring down). If I put the clutch pressure plate on the clutch disk, the flange (that bolts to the flywheel) of the pressure plate is all but touching the flat surface.

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