Shift plate spring washer specs ?

1941 - 1945, MB, GPW Technical questions and discussions, regarding anything related to the WWII jeep.
arnob38
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Shift plate spring washer specs ?

Post by arnob38 » Fri May 22, 2020 9:51 am

Hello,

While I am rebuilding my T84, I realize that I have 2 totally different Shift plate spring washers

The old one on the left, thinner and much more curved.
And the new one, on the right, thicker and almost flat

Image

Any recommendation on which one to use ?

And where do you put it ?

It was like this on mine when I opened it : above plate and curve down

Image

But I saw this setup on other sites, exact opposite : below plate and curve up

Image

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Re: Shift plate spring washer specs ?

Post by donk_316 » Fri May 22, 2020 11:04 am

Below is correct. Curve up or down.

Let the argument begin!


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Re: Shift plate spring washer specs ?

Post by Chuck Lutz » Fri May 22, 2020 11:13 am

No arguments are necessary:
Early, UNDER that shift plate....
From 4/45 it goes on TOP.
Check note "U":
Wavy Washer EARLY-Under LATE-Over Note U.jpg
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Re: Shift plate spring washer specs ?

Post by dinof » Sat May 23, 2020 6:35 am

As the photo shows, that washer is so close to the top of that pin that holds it. Make sure that the pin height is correct. I believe it was 1/4" high.
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Re: Shift plate spring washer specs ?

Post by dpcd67 » Sat May 23, 2020 8:40 am

Easy; I always put them on the bottom; that way they won't fall off when you are putting the top cover on. Your springs? Use either one, and curve up or down doesn't matter.
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Re: Shift plate spring washer specs ?

Post by Joe Gopan » Sat May 23, 2020 8:52 am

Does anyone have the Willys Drawing 635839 that details the dimensions and the number of waves for the spring washer?
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Re: Shift plate spring washer specs ?

Post by Chuck Lutz » Sat May 23, 2020 11:33 am

Apparently what you are asking for is if there is more than just ONE wave, right?

The ones found in post-war replacement catalogs may very well resemble the famous Lay's potato chip slogan, "R-r-r-Ruffles have r-r-ridges".

No "ruffles" on this one though, that one you are referring to might be from a CJ though or just the only REPLACEMENT available and since Willys would not care if it had one wave or many ridges as long as it did the SAME job, it could have been from any other use.
Wavy Washer.jpg
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Re: Shift plate spring washer specs ?

Post by dinof » Sat May 23, 2020 12:45 pm

This was the 2nd thing I threw away after the rain shields.
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Re: Shift plate spring washer specs ?

Post by Joe Gopan » Sun May 24, 2020 11:41 am

The spec would cut out any guessing.
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Re: Shift plate spring washer specs ?

Post by Chuck Lutz » Sun May 24, 2020 11:50 am

Joel....

Nobody here but you believes that a multi-waved washer is WWII CORRECT for the T84. Why would they bother to spend time on Memorial Day Weekend looking up something that hasn't surfaced in a blue moon (or 70+ blue moons)?

Why not post a top and side view pic of that multi-waved washer in this thread?
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Re: Shift plate spring washer specs ?

Post by Joe Gopan » Sun May 24, 2020 11:53 am

OEM is the only way to answer specific parts details. Guessing or supposing is not in my JEEP vocabulary.
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Re: Shift plate spring washer specs ?

Post by Chuck Lutz » Sun May 24, 2020 11:58 am

OK, I think you will therefore have to stop trying to "guess or suppose" that the multi-waved washer was WWII factory installed, right?
Come up with the drawing that indicates that during WWII that one was used and change everyone's mind, OK?
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Re: Shift plate spring washer specs ?

Post by Joe Gopan » Sun May 24, 2020 1:37 pm

Is it possible that the source who provided the information on the notes that provided the location of the 635839 Guide Plate Washer has the Willys Drawing for WO-635839?
2011 MVPA PIONEER AWARD - MVPA #1064
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LIFE MEMBER AM LEGION-40/8-DAV
7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO

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Re: Shift plate spring washer specs ?

Post by dpcd67 » Sun May 24, 2020 1:43 pm

The answer to your question is NO. It is like beating a dead horse. No one does that any more either. Ok, a dead car.
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Re: Shift plate spring washer specs ?

Post by bazza46 » Sun May 24, 2020 5:29 pm

In answer to the OPs original question;if you must put that spring washer back, it should be as it is in the picture.

If it was the other way round, the curve would be like an arch, spanning over the top of the pin, so the washer could vibrate off its position , as the pin is not in the hole, and end up in the gearbox, where, if lucky, it would miss any spinning ears and end up sitting in the bottom of the box,doing no harm,but no good either.
Personally, I'd leave it out. I've been owning and driving jeeps for 57 years, ditched the washer after the first gearbox repair, and never had anything to do with it again.
Oh yes, the original washers were thin and highly bowed.
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