trouble removing synchro

1941 - 1945, MB, GPW Technical questions and discussions, regarding anything related to the WWII jeep.
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Littlewood
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trouble removing synchro

Post by Littlewood » Thu Nov 07, 2019 5:52 am

I'm having the same issue that is show in this video, anyone have a solution to removing the synchro without damaging the shaft? Thanks

https://www.youtube.com/watch?v=GlVMPpPYmuE
1945 MB Willy's
1944 M29C Weasel
1945 GMC CCKW353
1945 Gemco 1/4 Trailer
1944 WLA
Radios : BC1306, BC-1000, BC-611F's, BC-620, SCR 528 PE-120, PE-237, GRC-9, DY88
Generators: PE 210-B & PE-75

Wolfman
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Re: trouble removing synchro

Post by Wolfman » Thu Nov 07, 2019 7:23 am

Most likely, the snap ring, that holds the synchronizer hub in place on the shaft, has rolled up a slight burr on the spline at the front of snap ring groove.
A Drimmel tool with a small stone, to dress the burr off, will solve the problem.
Not much room to work with the file.
Mike Wolford
CJ-2A
VEP GPW
Comm./Inst. SEL
AOPA ( 45 yrs)
EAA ( 45 yrs)
4th Inf. Div. - 5th Inf. Div. - 2nd Armor Div. - CIB

donk_316
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Re: trouble removing synchro

Post by donk_316 » Thu Nov 07, 2019 8:21 am

OR

piece of wood and rubber mallet. The synchro is getting replaced anyways right?
1943 GPW 112092 DoD April 30 Louisville
1942 WLA type 7 (gone but not forgotten)
MVPA 35963

Chuck Lutz
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Re: trouble removing synchro

Post by Chuck Lutz » Thu Nov 07, 2019 11:00 am

If you have a length of emery paper to wrap around the shaft, you can rotate the shaft and possible remove the burr on the snap ring edge.
I would not always assume that replacing the HUB is a foregone conclusion.
Chuck Lutz

GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
Bantam T3-C 1947

Littlewood
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Re: trouble removing synchro

Post by Littlewood » Tue Nov 12, 2019 7:43 am

thank for the information will inspect mine and see which method will work best, I has planning on salvaging the whole assemble except the synchro as this and the rails are the only parts that seem damaged. I was in an accident in the Jeep, transmission worked perfect prior, i now want to transplant all the guts in to a new case, I haven done this before but looking forward to the challenge.

any opinion on these case offered... they advertise as WOF, but are they?

https://www.ebay.co.uk/itm/Jeep-MB-GPW- ... xyhlJRcEUF
1945 MB Willy's
1944 M29C Weasel
1945 GMC CCKW353
1945 Gemco 1/4 Trailer
1944 WLA
Radios : BC1306, BC-1000, BC-611F's, BC-620, SCR 528 PE-120, PE-237, GRC-9, DY88
Generators: PE 210-B & PE-75


donk_316
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Re: trouble removing synchro

Post by donk_316 » Tue Nov 12, 2019 10:43 am

They are. That seller is solid. Bought from him before.
1943 GPW 112092 DoD April 30 Louisville
1942 WLA type 7 (gone but not forgotten)
MVPA 35963

Littlewood
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Re: trouble removing synchro

Post by Littlewood » Tue Nov 12, 2019 12:45 pm

Thanks for that it’s good to know
1945 MB Willy's
1944 M29C Weasel
1945 GMC CCKW353
1945 Gemco 1/4 Trailer
1944 WLA
Radios : BC1306, BC-1000, BC-611F's, BC-620, SCR 528 PE-120, PE-237, GRC-9, DY88
Generators: PE 210-B & PE-75

dinof
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Re: trouble removing synchro

Post by dinof » Tue Nov 12, 2019 12:49 pm

But does the case have WOF stamped on it? If not beware. Oh and while your at it, put a .040 spacer on the 2nd-3rd shift rail between the fork & case of the transmission to limit the travel of your shift.
Dino Falabrino
On the "G" since 1998.
1943 GPW 102310 DOD 3-3-43

Littlewood
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Re: trouble removing synchro

Post by Littlewood » Wed Nov 13, 2019 8:37 am

See attached pictures of the case, WOF?
Attachments
IMG_4318.jpg
IMG_4318.jpg (183.29 KiB) Viewed 129 times
IMG_4317.jpg
IMG_4317.jpg (160.96 KiB) Viewed 129 times
IMG_4316.JPG
IMG_4316.JPG (160.08 KiB) Viewed 129 times
1945 MB Willy's
1944 M29C Weasel
1945 GMC CCKW353
1945 Gemco 1/4 Trailer
1944 WLA
Radios : BC1306, BC-1000, BC-611F's, BC-620, SCR 528 PE-120, PE-237, GRC-9, DY88
Generators: PE 210-B & PE-75

dinof
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Location: Arcadia Ca.

Re: trouble removing synchro

Post by dinof » Thu Nov 14, 2019 12:11 pm

Yep, that's mine that I bought. That logo that is a circle/star pattern is what I have. Like I said, just make sure you do not allow the 3 shift plates to expose themselves to the point you can see the "dimple" that is in the middle of them. Ignoring this and you take a chance of them popping up and jamming the shift. MIne was good in the 2nd gear mode, but not in the 3rd gear mode. Let me know, there is an easy fix.

A well schooled member here acknowledged the problem and his fix was what I was doing. His take was that these are repos sold in France. Photos of French Hotchkiss cases I saw had "WOF" stamped on them. This is all I know. The member that knew this or offer his take on this, lived in Germany. He was banned or he removed himself because he was harassed by a few here. If he was here, he would of cleared this up more than I can.
Dino Falabrino
On the "G" since 1998.
1943 GPW 102310 DOD 3-3-43

Littlewood
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Re: trouble removing synchro

Post by Littlewood » Fri Nov 15, 2019 7:41 am

Thanks dino, its disappointing that its not WOF as thats what was advertised. Im going to look for a period correct one and shelf this one unless nothing comes up, the Transmission case on my damaged one was marked G 11 44 D.

cheers James
1945 MB Willy's
1944 M29C Weasel
1945 GMC CCKW353
1945 Gemco 1/4 Trailer
1944 WLA
Radios : BC1306, BC-1000, BC-611F's, BC-620, SCR 528 PE-120, PE-237, GRC-9, DY88
Generators: PE 210-B & PE-75

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