Model D grader clutch

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   Ok so I bought this big yellow money pit.   I have wanted one in the worst kind of way, and that's how I got it.  Actually, It's not really so bad.  It's a D Special and was supposed to only need a Carb. rebuild.  Got it home and the engine was stuck.  Pulled the engine to find it free and it was the clutch that was stuck.  No time to celebrate, the engine would have been easier to fix.  The clutch is toast, but is the same as the early D17 and available.  Now to the sad part of this story.  The throw-out bearing carrier is rusted to the guide tube.  Took a week, but I got the three cap screws holding the guide tube/ input shaft bearing retainer out.  It is now loose on the shaft.  I can't lay the clutch fingers down because the clutch arm is also frozen to the shaft. The service manuals are sold in sections and I can't find the one for the transmission.  From the parts book it looks like I can pull the Aux. transmission out and the input shaft will retract letting the guide tube come out.  Looks like a lot of things have to come off (cab) first.  Question, If I pull the aux. trans. and input shaft how much falls off inside the trans. requiring a tear down?  Any advice, criticisms, degrading remarks, or sarcasm are welcome.

Edited by Dave Richards (WV) - 06 May 2023 at 10:46am

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Dave Richards (WV) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 14 Sep 2009 Location: Fairmont, WV Points: 880	Post Options Post Reply Quote Dave Richards (WV) Report Post Thanks(0) Quote Reply Topic: Model D grader clutch Posted: 06 May 2023 at 10:44am
	Ok so I bought this big yellow money pit. I have wanted one in the worst kind of way, and that's how I got it. Actually, It's not really so bad. It's a D Special and was supposed to only need a Carb. rebuild. Got it home and the engine was stuck. Pulled the engine to find it free and it was the clutch that was stuck. No time to celebrate, the engine would have been easier to fix. The clutch is toast, but is the same as the early D17 and available. Now to the sad part of this story. The throw-out bearing carrier is rusted to the guide tube. Took a week, but I got the three cap screws holding the guide tube/ input shaft bearing retainer out. It is now loose on the shaft. I can't lay the clutch fingers down because the clutch arm is also frozen to the shaft. The service manuals are sold in sections and I can't find the one for the transmission. From the parts book it looks like I can pull the Aux. transmission out and the input shaft will retract letting the guide tube come out. Looks like a lot of things have to come off (cab) first. Question, If I pull the aux. trans. and input shaft how much falls off inside the trans. requiring a tear down? Any advice, criticisms, degrading remarks, or sarcasm are welcome. Edited by Dave Richards (WV) - 06 May 2023 at 10:46am

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Ray54 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 22 Nov 2009 Location: Paso Robles, Ca Points: 4561	Post Options Post Reply Quote Ray54 Report Post Thanks(0) Quote Reply Posted: 06 May 2023 at 11:30am
	Your luck runs about like mine, so hope it gets better. Have not been into a grader so no help. But try General Gear in Idaho, they started as a used parts business. Have got into many after market parts for crawlers of all colors. As another service they put parts books online, for crawlers. So they may have books on graders and other old construction machines too.

im4racin Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Jun 2017 Location: Garrison ND Points: 942	Post Options Post Reply Quote im4racin Report Post Thanks(0) Quote Reply Posted: 06 May 2023 at 12:17pm
	Bolt the input retainer back in and soak everything down with wd40 RUST RELEASE. NOT NORMAL WD40. It is water based and only works on rust. After a few soakings it will generally start moving. That stuff works!