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Banjo Bolt Copper Washers

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davidover View Drop Down
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    Posted: 30 Nov. 2020 at 10:11pm
Hello again folks,

Does anyone have the exact size for each Copper crush washer for the Banjo Bolt on the Master Cylinder?  Yes I know I could just order some, however my local Hardware has a decent selection of these types of Copper Washers and we've matched them before.  Unfortunately we didn't save the size's we purchased and it was 7 years ago.  If no one has an answer I'll take the old washers with Banjo with me and try to match.

Thanks
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rus Curtis Quote  Post ReplyReply Direct Link To This Post Posted: 01 Dec. 2020 at 4:08pm
Originally posted by davidover davidover wrote:

.....I'll take the old washers with Banjo with me and try to match....

That's how I would do it.  Probably take the bolt too.
Rus Curtis
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Post Options Post Options   Thanks (0) Thanks(0)   Quote srlbotanical Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec. 2020 at 2:49pm
I don't know the size, but I found my rebuild was a lot easier to make leak-free when I annealed the washers before install. 
Steve
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SE Kansas 46 CJ-2A Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec. 2020 at 5:43pm
Annealing is a good idea because when the washers are punched out during manufacture it work hardens the copper. Heating the copper washer to where you begin to see a color change in the copper (not quite yellow heat) will soften the copper. Air cool.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote WeeWilly Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec. 2020 at 7:39pm
Originally posted by SE Kansas 46 CJ-2A SE Kansas 46 CJ-2A wrote:

Annealing is a good idea because when the washers are punched out during manufacture it work hardens the copper. Heating the copper washer to where you begin to see a color change in the copper (not quite yellow heat) will soften the copper. Air cool.


   I always quench brass and copper in water to anneal after heating it. I use to do reloading for some of my guns and annealed the brass that way.

   Jim
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SE Kansas 46 CJ-2A Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec. 2020 at 7:46pm
It can be quenched if you wish. Either way it will be softer than when you started and the washer will conform easier to the ridges on the banjo, thus making a better seal.
46 CJ-2A #64462 "Ol' Red" (bought April 1969)(second owner)(12 V, 11" brakes, M-38 frame, MD Juan tub)

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Post Options Post Options   Thanks (0) Thanks(0)   Quote cpt logger Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec. 2020 at 10:55pm
On aircraft the procedure requires an oil or water quench. I always do this. I usually use oil.

That being said, my cousin uses the air quench. So far, 35 years and counting, neither of us has had any issues. Your Jeep, your call.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ggordon49 Quote  Post ReplyReply Direct Link To This Post Posted: 03 Dec. 2020 at 7:23pm
For Future Use:


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Post Options Post Options   Thanks (0) Thanks(0)   Quote davidover Quote  Post ReplyReply Direct Link To This Post Posted: 04 Dec. 2020 at 3:35pm
Thanks all for the info I really appreciate it.  Upon trying to remove the Banjo boltout of the master  cylinder, it snapped in half.  
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rus Curtis Quote  Post ReplyReply Direct Link To This Post Posted: 04 Dec. 2020 at 4:41pm
Well, that's unfortunate......
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Post Options Post Options   Thanks (0) Thanks(0)   Quote davidover Quote  Post ReplyReply Direct Link To This Post Posted: 06 Dec. 2020 at 10:45am
1947 CJ2A #93851
1947 CJ2A #99701
1947 CJ2A #95504
1950 CJ3A #59575
1946 CJ2A #53228
1948 CJ2A #?????
1944 MB ROLLING CHASSIS #?????
1946 CJ2A #38008
1945 MB
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Post Options Post Options   Thanks (0) Thanks(0)   Quote davidover Quote  Post ReplyReply Direct Link To This Post Posted: 06 Dec. 2020 at 10:47am
If you look closely, someone in the past used two Crush washers on the inside of the Banjo.  Now to be fair, either they didn't know any better or it was the only to stop a leak, I can't say.

Does anyone know where most of the vendors are sourcing these washers from?  I'd like to find the source for these two items.
1947 CJ2A #93851
1947 CJ2A #99701
1947 CJ2A #95504
1950 CJ3A #59575
1946 CJ2A #53228
1948 CJ2A #?????
1944 MB ROLLING CHASSIS #?????
1946 CJ2A #38008
1945 MB
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jeeper50 Quote  Post ReplyReply Direct Link To This Post Posted: 06 Dec. 2020 at 12:29pm
I just bought both from Walcks two weeks ago

Belleview ol skool winch soon.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SE Kansas 46 CJ-2A Quote  Post ReplyReply Direct Link To This Post Posted: 06 Dec. 2020 at 4:37pm
When replacing the banjo fitting never use a used washer. The ridges that are formed in a used washer will never completely be crushed back out and chances are you will have a leak.

From Walck's:

Master cylinder side: https://walcks4wd.com/Copper-Washer-Master-Cylinder-Y-Fitting-Master-Cylinder-Side_p_697.html

Switch side: https://walcks4wd.com/Copper-Washer-Master-Cylinder-Y-Fitting-Brake-Light-Switch-Side_p_698.html

Banjo bolt: https://walcks4wd.com/Bolt-Master-Cylinder-Y-Fitting_p_696.html

Banjo fitting: https://walcks4wd.com/Y-Fitting-Master-Cylinder-1941-59-MB-GPW-M38-M38A1-CJ-Models_p_282.html



46 CJ-2A #64462 "Ol' Red" (bought April 1969)(second owner)(12 V, 11" brakes, M-38 frame, MD Juan tub)

U.S. Coast Guard Chief Petty Officer(ret.)
U.S. Army Vietnam veteran and damned proud of it.



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Post Options Post Options   Thanks (0) Thanks(0)   Quote davidover Quote  Post ReplyReply Direct Link To This Post Posted: 07 Dec. 2020 at 12:03am
Thanks for the links, but I want to know where these vendors are sourcing them.  I like to buy in bulkBig smile

1947 CJ2A #93851
1947 CJ2A #99701
1947 CJ2A #95504
1950 CJ3A #59575
1946 CJ2A #53228
1948 CJ2A #?????
1944 MB ROLLING CHASSIS #?????
1946 CJ2A #38008
1945 MB
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SE Kansas 46 CJ-2A Quote  Post ReplyReply Direct Link To This Post Posted: 07 Dec. 2020 at 1:44am
Ask the vendor...
46 CJ-2A #64462 "Ol' Red" (bought April 1969)(second owner)(12 V, 11" brakes, M-38 frame, MD Juan tub)

U.S. Coast Guard Chief Petty Officer(ret.)
U.S. Army Vietnam veteran and damned proud of it.



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Post Options Post Options   Thanks (0) Thanks(0)   Quote WeeWilly Quote  Post ReplyReply Direct Link To This Post Posted: 07 Dec. 2020 at 2:36am

  Have you tried a google search?  I am pretty sure you can find what you are looking for.

   Jim
47 CJ2A (Ranch Hand) 48 CJ2A, 48 Willys truck, T3C 3782, M274 (Military Mule)
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