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Old Oct 16th, 2007, 08:13 PM   #1
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Pinion shaft nut removal

Anybody have some insight into how the heck I remove the pinion shaft nut off my pinion shaft? I am replacing the pinion gear. The nut seams to be welded on. Is this a shop work deal?

Thanks in advance.

I bought a 1981 shovelhead and have not even started it yet. Arggg.

Help.

JD
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Old Oct 16th, 2007, 08:41 PM   #2
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The pinion shaft nut is left hand threads. So if will come off as if you were tighting.

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Old Oct 16th, 2007, 10:03 PM   #3
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Thanks I know this, but how to loosen the nut

I put it in a vice and it scared the shaft, just spun in the vice. I put a vice grio wrecnh on it and again it spun. Is there a secret I need to know about? I want to ride my new bike,.... Help
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Old Oct 17th, 2007, 02:28 AM   #4
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Sometimes an impact gun will jar it loose if hit in quick bursts....sorry my only suggestion.
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Old Oct 17th, 2007, 09:34 AM   #5
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Possibly red loctited on very tight, you can heat it with a torch that will cause the red loctite to flow and then you can get it off, or an impact, be sure you have a locking tool to keep everything else from moving.
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Old Oct 17th, 2007, 10:00 AM   #6
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you dont want to score or scratch the shaft....the gear slides on it...
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Old Oct 18th, 2007, 09:30 AM   #7
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I know Paco already said this, but really hope you caught the part that they are REVERSE threads ! (clockwise to loosen)
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Old Nov 6th, 2007, 09:55 PM   #8
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Re - Pinion shaft nut removal

I had this same problem on my recent starter drive gear replacement. Don't know if the Shovel 4-speed primary is the same as Evo, but on mine I couldn't use an impact cuz the nut has that weird rounded shape (not hex). I put the shaft in a vise, with the jaws around the shaft in the area between the tranny and primary seals. That way if it does get scratched, its not in a place where it really counts. Heated it up plenty (not enough to change color, though) with a plumbing torch to melt all the old loctite. Took a few blows with a mallet on the 5/8" combo (in the CW direction) to get it loose. Then when it cooled I cleanned it all up with aluminum-oxide 200 grit and Mother's.
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