Oil System Case fittings

Production K Models

Oil System Case fittings

Postby Mayday53 » Sat Apr 07, 2018 8:33 pm

Can someone please share a picture(s) of the oil line fittings on the top of the case? The guy who originally helped me tear my 55 KHK apart did not take pictures and I have no idea how they fit back into the case; i.e. which hole is which since the fittings are all gone. I have new supply and return lines, but that is the only clues I have. I tried looking at picture but I cannot decipher enough to recreate the correct looking system.

Thanks,

"Mayday"
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Re: Oil System Case fittings

Postby starcain » Sun Apr 08, 2018 4:16 pm

Mayday, Hope these pictures help.
Stan
Attachments
Case line locations.jpg
Case line locations.jpg (390.11 KiB) Viewed 13446 times
Oil Fittings.jpg
Oil Fittings.jpg (126.48 KiB) Viewed 13446 times
Oil Line Case Fittings.jpg
Oil Line Case Fittings.jpg (141.21 KiB) Viewed 13446 times
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Re: Oil System Case fittings

Postby Mayday53 » Sun Apr 08, 2018 4:35 pm

That is absolutely perfect… Thank you very, very much.
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Re: Oil System Case fittings

Postby Mayday53 » Sun Apr 08, 2018 4:38 pm

Sorry, I just realized I need a bit more...do you know the threading for the connections?
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Re: Oil System Case fittings

Postby starcain » Sun Apr 08, 2018 5:10 pm

The feed line nut is 11/16-24 with 1/4-18 NPT case thread

The return line nut is 5/8-24 with 1/8-27 NPT case thread

The vent line nut is 1/2-24 with 1/8-27 NPT case thread
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Re: Oil System Case fittings

Postby Mayday53 » Sun Apr 08, 2018 5:17 pm

Thanks! You the man Stan
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Re: Oil System Case fittings

Postby starcain » Mon Apr 09, 2018 8:50 am

Mayday, It occurred to me last night that since you are working on a 1955 the oil vent line case fitting for a '55 is the longer 63526-54 one. Body length of the fitting is about 1 1/16". It is used with the 63570-52A vent line that is about 1" shorter on the case end. Pretty sure they did this to get the line nut up further to make it easier to get to. Threads are the same as the short fitting. In 1956 they changed the vent line all together to the 63570-56.
Stan
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Vent Line Fitting(c).jpg
Vent Line Fitting(c).jpg (134.08 KiB) Viewed 13389 times
Vent Line Fitting(a).jpg
Vent Line Fitting(a).jpg (139.31 KiB) Viewed 13389 times
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Re: Oil System Case fittings

Postby Mayday53 » Mon Apr 09, 2018 12:31 pm

Do you have any suggestions/knowledge on where I can find the parts? I have been looking for the last couple days and V-twin only has one of the fittings. I am on the verge of having a local shop make them for me if I cannot find them. I will continue my search today and any help would be much appreciated.
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Re: Oil System Case fittings

Postby starcain » Mon Apr 09, 2018 1:36 pm

The fittings pictured are the only extra ones I have. I want to keep them for comparison and show & tell purposes. I really have no idea where to tell you to look. I would put a wanted ad on the parts exchange. Someone may have a whole drawer full of them? Hope you find them and good luck.
Stan
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Re: Oil System Case fittings

Postby wz507 » Mon Apr 09, 2018 4:20 pm

Mayday,

Just curious, once you get the correct oil line fittings for the case, are you set to address the slightly unusual rubber feed line and line fittings/ferrules therefore? I ask because I need the same pieces.

http://www.harleykmodel.com/phpBB3/viewtopic.php?f=8&t=549&hilit=oil+line
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