Wiper assembly's half nut

cwdtmmrs

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#21
Thanks for checking. I am going to try the leather route at about .030 thick. I remember having a tough time cutting clean lines in the rubber. It wanted to move around to much when cutting. Never thought to check the parts manual. I'll post up the results.
Not bad if you glue the rubber (or leather for that matter) to the escutcheon first with contact adhesive and then use a sharp exacto knife.
 

57Willys

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#22
Good idea. Just did not think of it. I'll give it a try. Should waste a lot less with my "trace it out and cut" method.
 

captainlance

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#25
I always felt I was somewhat versed in threaded products, whats a half-nut?? a jam nut that is typically 1/2 the width/height of a normal nut??? I'll be getting into wiper mechanisms sometime this winter.
A half nut is one that is 1/2 the thickness. Width is the same.
 

57Willys

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#28
Digger, if your talking to me I would sure like to purchase a couple of your best leather gaskets for reproducing.
 

cwdtmmrs

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#29
Gary, the problem with original leather washers, at least all the ones I have seen, have shrunk so much that they don't fit well any longer.
 

vintagetrk

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#30
Once I figure out the fitment part of the leather gasket, I will head to my knife shop to make a template so more can be made for those that need them. I do know from restoring old M3 combat knives from WW2, leather that's out there will be smaller in area and very thin as compared to what it was originally. So I will go off the parts for the initial pattern size. I would imagine I need them to be as tight as possible. I will post pictures on this post so we can get an agreed correct fit. If there is any interest?
 

57Willys

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#31
Gary, the problem with original leather washers, at least all the ones I have seen, have shrunk so much that they don't fit well any longer.
I got you and I agree. I just wanted to be sure on the "oblong" outer diameter form and the round inner diameter. Size should be self explanatory but shape may be different than I think. Mine were completely missing except for a small piece on one side and I'm not sure it was even leather. Who knows what has happened over the last 60 years. The one thing that aggravates me about reproduction parts is they don't replicate the originals very well. If I am going to try and make some, I want them right. Bill Kuran had some gaskets made for the PTO halves and they were spot on in every aspect. I really like that and appreciate his due diligence. He could have sold them directly to Koenig and kept his head held high. just want to try and do my due diligence on these gaskets.
 

51delivery

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#32
Back in 1967,I was an aircraft pneudraulics specialist in the Air Force, ( hydraulics / pneumatics ) teflon back up rings were just coming in, so we had both teflon and leather back up rings. ( the back up ring is used in conjunction with an "o" ring in high pressure hydraulics) in order to stretch them over the fitting , or piston for a cylinder, we,d soften them up by soaking them in our mouth for while. ( sometimes chewing on them )
 

diggerG

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#36
Digger, if your talking to me I would sure like to purchase a couple of your best leather gaskets for reproducing.
I was talking to vintagetrk. He wanted the nuts. I could have saved hundreds of them ,but didn't take off too many. I will look for another usable gasket. remind me later (it's Christmas time)
diggerG
 

cwdtmmrs

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#37
I got you and I agree. I just wanted to be sure on the "oblong" outer diameter form and the round inner diameter. Size should be self explanatory but shape may be different than I think. Mine were completely missing except for a small piece on one side and I'm not sure it was even leather. Who knows what has happened over the last 60 years. The one thing that aggravates me about reproduction parts is they don't replicate the originals very well. If I am going to try and make some, I want them right. Bill Kuran had some gaskets made for the PTO halves and they were spot on in every aspect. I really like that and appreciate his due diligence. He could have sold them directly to Koenig and kept his head held high. just want to try and do my due diligence on these gaskets.
I may have a couple of originals and will look tomorrow, but you think we might be obsessing a little about the washers? Maybe a bit? `
 

wunderwillys

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#38
I have some nos leather seals for copy just send me back the originals and an extra pair?


Sent from my iPhone using Tapatalk
 

dirrty2

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#39
Nathan, I have a tool to help you install these nuts. I will offer it up in the tool share program and then I can send it to you. It's my prototype but will work fine. The next one will be out of brass to help protect the nut and a little longer handle for more comfort. When you are done with it and someone else needs it, if I have the new one completed, you could probably keep it. We'll see how fast I can get the new one finished. There really is a half nut. It's the nut on a lathe that clamps around the lead screw that engages the feed. I believe our nuts for the wipers are just escutcheon nuts. Attached are photos of the prototype tool (steel) new tool in work (brass) a half nut and the lead screw that feeds the carriage. I tried to show the slots of the escutcheon nuts in a couple pictures. Hope you can make out what I am showing. You could use a screw driver and hammer but that's a little harsh on tools and nuts not to mention the chrome. If you need more pictures just let me know. By the way, I made some thin rubbers gaskets to go between the escutcheon and the body. After installation I checked it all with a water hose and was good to go. Good luck with your project.
That is a really nice tool, but since retiring I don't have access to a lathe anymore, but if you are careful and use a soft (aluminum or hard plastic) drift you can get those nuts off or on without damage. Just a note for any other tool deprived folks like me.
 

captainlance

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#40
Looking for the specs on the nut that secures the pivot assembly to the cowl. I am getting sick of cold air blowing thru that hole and not having wipers.

I bought the parts for the wiper pully assembly but the half nuts I have were too small.

Looked at the usual website, didnt see one available.

Tried NAPA - they told me they didnt want to order it. Ace didnt have anything either. If I knew the threads I could have one made.

Any help appreciated!

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I checked mine, they are 5/8-NF thread. A relatively common size.
 
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