Completely stuck, need help on dual clutch

Laneman · Jun 4, 2013

Really need some help from the clutch veterans. On a '73 3000 dual clutch job, trying to set the height of the 3 bolts on release levers. Already have the .054 gap set. The book says to set 2.110 from PTO hub to top of bolt head. I have the 3 bolts as far out as I can and I am at 1.750. I am measuring to the raised portion of PTO hub with splines. Do I measure to the lower portion of hub? As an alternative I tried measuring from bell housing face to throwout bearing and got 8 9/16 when bearing is pushed all the way back against stop. My plan was to set the 3 bolts to 8 3/8 from block, giving me a 3/16 gap between bolts and release bearing. The current height of the 3 release bolts at engine side is 6 1/2 from engine block. Seems like there is no way to make this work. Could use some pointers. I have both the IT manual and factory manual.

Bern · Jun 4, 2013

I've rebuilt many of those double clutches during my time at a FNH dealer, and can tell you that I have never done it on the flywheel, always on the jig. I don't recall the factory manual even mentioning the flywheel method as an option.

Either one of two things is going on here: 1) You're misreading the dimensions and/or referencing off of the wrong portion of the hub, or 2) (more likely) you have wear on the fingers and linkage parts causing the levers to be farther down (closer to the flywheel) than they otherwise would be.

I would disassemble the plate assy and inspect the parts closely for wear. Pay particular attention to the 6 struts with the oval holes in them. I would bet that they are worn big time.

Laneman · Jun 5, 2013

OK thanks, will check parts for wear. Sounds like I have to decide if it's worth using the same pressure plate assy. The initial problem was only the transmission friction disc was bad, PTO disc looked like it had plenty of life left in it.

Completely stuck, need help on dual clutch

Laneman

Member

Bern

Well-known Member

Laneman

Member

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