Differential Pinion Nut Tool Drawing - Alfa Romeo Bulletin Board & Forums
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post #1 of 5 (permalink) Old 01-25-2019, 01:22 PM Thread Starter
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Differential Pinion Nut Tool Drawing

Cold weather keeps me in-doors in the Winter so I like to sit around on the PC's, Work on my Electronics Projects and Draw. I had the fortune to be able to borrow the 1600 -1750 Differential Nut tool from Steve Swartz this summer so I took the opportunity to measure it up. Here is a pdf of the Autocad drawing for any body who wants to make one or have a good one made by a local machine shop. I don't know if Steve's wrench was of tempered or hardened material but the prongs on this tool needs to be able to torque up to a good one hundred-fifty ft/lbs. There's always one out there that is over tightened. The Alfa Spec on that big pinion nut is 58 to 101 ft/lbs. Good luck!
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......... Bud Feigel ........<Oo \*/ oO>....... Lexington, Kentucky ........
'82 RED GTV6 / 2.5 - '86 WHITE Spider Veloce 2000 - '71 GREEN GTV 1750

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post #2 of 5 (permalink) Old 01-25-2019, 10:05 PM
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hi
I cant see an attachments

cheers ian

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post #3 of 5 (permalink) Old Yesterday, 03:07 PM
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post #4 of 5 (permalink) Old Yesterday, 06:01 PM
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i had to switch to Classic mode of the forum to see the image.

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post #5 of 5 (permalink) Old Yesterday, 07:30 PM
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Originally Posted by Little Italian View Post
Cold weather keeps me in-doors in the Winter so I like to sit around on the PC's, Work on my Electronics Projects and Draw. I had the fortune to be able to borrow the 1600 -1750 Differential Nut tool from Steve Swartz this summer so I took the opportunity to measure it up. Here is a pdf of the Autocad drawing for any body who wants to make one or have a good one made by a local machine shop. I don't know if Steve's wrench was of tempered or hardened material but the prongs on this tool needs to be able to torque up to a good one hundred-fifty ft/lbs. There's always one out there that is over tightened. The Alfa Spec on that big pinion nut is 58 to 101 ft/lbs. Good luck!
Hi Little Italian,
I have an 'original factory tool' that I've had it's critical dimensions replicated onto an impact socket. Find my post in the for sale section.
Looking at your drawing, you have either replicated the basic flaws found on the tool that you got from Steve Swartz or you have introduced them your self.
I would politely advise you to review your drawing as it does not match the original factory tool.
Regards Steve

Last edited by Steve105; Yesterday at 10:56 PM.
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