Torpedo Automatic hub overhaul
#1
Senior Member
Thread Starter
Torpedo Automatic hub overhaul
Has anyone here ever overhauled a Torpedo Automatic hub? I started to take it apart and only got here and can't figure out how the rest of it comes off the axle. I attached the screenshot from Sutherland's manual as well and it's still not clear to me. Manual just says remove these pieces but doesn't say how. They don't slide off, something is keeping them attached. Any advice appreciated. Might post over on the mechanics forum as well. Thanks.



#2
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Never had an Automatic but you should get all the info you need on Hubstripping
#3
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Never had an Automatic but you should get all the info you need on Hubstripping
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How many speeds does this have?
#6
十人十色
This should help - it's my description of dismantling and rebuilding a Torpedo Duomatic hub on Flickr, which in many ways is the same, and there are photos of an original Torpedo Automatic schematic there.
When rebuilding it's important to use the right lubricants - mainly not to use grease on the pawls.
When rebuilding it's important to use the right lubricants - mainly not to use grease on the pawls.
#7
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Thread Starter
This should help - it's my description of dismantling and rebuilding a Torpedo Duomatic hub on Flickr, which in many ways is the same, and there are photos of an original Torpedo Automatic schematic there.
When rebuilding it's important to use the right lubricants - mainly not to use grease on the pawls.
When rebuilding it's important to use the right lubricants - mainly not to use grease on the pawls.

#8
十人十色
If I remember correctly, you need to take the pawls and planet gears out of the planet carrier before it will come off the axle but I'm not sure about what needs to be done to remove the brake cone assembly. It should come off in a spiral motion. One thing is for sure, though, it should come off effortlessly (just in case you're tempted to use force). There is a circlip that may need to be removed. I'm afraid it's been a while since I worked on my Automatic (for I have one of those, too) and I've forgotten.
#9
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You can check this as well, the guy has more video on Torpedos.
#10
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You can check this as well, the guy has more video on Torpedos.
https://www.youtube.com/watch?v=X0eWaoNhC-w
https://www.youtube.com/watch?v=X0eWaoNhC-w
#11
十人十色
Good luck! Let us know how you get on...
#12
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A gallery of Duomatics disassembled
https://www.808.dk/?duomatic-models
Anything in Sutherland's of help?
https://www.sheldonbrown.com/sutherl...GH-3-sachs.pdf
https://www.808.dk/?duomatic-models
Anything in Sutherland's of help?
https://www.sheldonbrown.com/sutherl...GH-3-sachs.pdf
#13
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Thread Starter
Thanks. Yes, Jens seems like a good guy with a wealth of knowledge. And he shares my obsession with these hubs! I will degrease some more and hopefully it will come apart easily.
#14
Senior Member
Thread Starter
Success! After some more soaking, I was able to remove these parts from the axle. For what it is worth, pulling the axle away from the parts was helpful whereas I previously was trying to pull the parts off of the axle. The old grease on this hub was pretty amazing - I don't think it had ever been opened. Hoping to rebuild this hub and give it a shot soon! Thanks all!
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