Replacing 10EE leadscrew reverse shifter packing?
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    Default Replacing 10EE leadscrew reverse shifter packing?

    My 1942 10EE uses string packing around the shaft that engages the reverse clutch rack. Has anyone ever just replaced it with a stack of modern O-rings? The shaft is .750" and the hole for the packing is ~15/16", which works out nicely for a standard 3/32" O-ring.

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    Quote Originally Posted by focusrsh View Post
    My 1942 10EE uses string packing around the shaft that engages the reverse clutch rack. Has anyone ever just replaced it with a stack of modern O-rings? The shaft is .750" and the hole for the packing is ~15/16", which works out nicely for a standard 3/32" O-ring.
    Can't see the harm. Any machine tool as doesn't weep a bit of lube is probably empty of it!



    "O" rings can be selected for compatibility with the lubes used.

    Even so, both Graphite-impregnated and Teflon-impregnated "string" stem or bonnet packing materials are still out there - close as the plumbing supply wall-hanger blister packs, any "Big Box" store. There are still a few plumbing goods as use the stuff at least w/r "old work" repairs.

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    I found if the dimensions are suitable, to replace that kind of old tech with press -in single lipped oil seals. But if not, a o -ring is a good substitute.

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    Mcmaster has all different packing strings. The hole you refer to is threaded and I was concerned o-rings wouldn't seal on the threads so I used packing from Mcmaster.

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    Quote Originally Posted by bll230 View Post
    Mcmaster has all different packing strings. The hole you refer to is threaded and I was concerned o-rings wouldn't seal on the threads so I used packing from Mcmaster.
    Packing retention may not be the ONLY reason it was threaded, but yazz. That suits.


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