1942 Ford GPW #20385883 rebuild
- crazychevelleman
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Re: 1942 Ford GPW #20385883 rebuild
Here is my new Ford F-150 to pull my Ford Jeep.
Last edited by crazychevelleman on Fri Aug 30, 2019 9:34 am, edited 4 times in total.
- crazychevelleman
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Re: 1942 Ford GPW #20385883 rebuild
Got the NOS ring & pinion gears in today, some are "F" stamped. I cant wait to install them.
Last edited by crazychevelleman on Fri Aug 30, 2019 7:33 am, edited 1 time in total.
- crazychevelleman
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Re: 1942 Ford GPW #20385883 rebuild
I got the Pinion tool and will soon be ready to start the rebuild. I also picked up an NOS Scherr Tumico Depth Micrometer for the job.
Last edited by crazychevelleman on Fri Aug 30, 2019 7:34 am, edited 1 time in total.
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Re: 1942 Ford GPW #20385883 rebuild
Nice truck! A real step up from your little one....
- zepher11
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Re: 1942 Ford GPW #20385883 rebuild
Yes, nice truck you have now. With your forum handle I was expecting another brand, but those little Ford Jeeps have a way of growing on you.
I saw that you were going to build a rotisserie out of three engine stands for your tub. Were you able to get that completed? I made one for my tub with three stands I scored for about $75 to $80. I just posted an ad on Craigslist and I had people selling them to me for $20 to $25 each. I posted pictures on my thread when I build it. If you haven't got to it maybe they may be of some help. By the way, your project is looking great! Keep up the great work.
I saw that you were going to build a rotisserie out of three engine stands for your tub. Were you able to get that completed? I made one for my tub with three stands I scored for about $75 to $80. I just posted an ad on Craigslist and I had people selling them to me for $20 to $25 each. I posted pictures on my thread when I build it. If you haven't got to it maybe they may be of some help. By the way, your project is looking great! Keep up the great work.
- crazychevelleman
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Re: 1942 Ford GPW #20385883 rebuild
Today I finally got started on the front differential reassembly. I replaced all bearings, the ring and pinion and new shims. Here are a few pics of my calculations. The pinion is engraved with “+5” which indicates that its ideal checking distance is Five thousandths of an inch greater than nominal, or 2.250” + 0.005” = 2.255”. We prayed because it was hard for me to figure out seeing I have never did this before and there was no one to ask. The Lord helped us, giving us wisdom to solve the problem. The allowed tolerances are +2 or -2 of 2.255. we are 2.254. I would call that a dead on pinion alignment. Considering, that the Ordnance department had a .033 total of shims and that would have made the set up go clickety clack . It should purr like a kitten going down the road.
Last edited by crazychevelleman on Fri Aug 30, 2019 9:40 am, edited 1 time in total.
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Re: 1942 Ford GPW #20385883 rebuild
Looks good keep going
812obryan@gmail.com (812)-455-9056
1944 GPW 224803 winner of the G503 award
1944 GPW 229997
1943 Huffman H 123021
1943 Columbia MG137313
1943 Columbia MG156811
1944 Cushman Airborne 53 34129 dod 11/15/44
1944 Cushman airborne 53 34334 dod 11/18/44
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1944 John Wood M3A4 27561
1944 GMC CCKW 353 382025
1944 GPW 224803 winner of the G503 award
1944 GPW 229997
1943 Huffman H 123021
1943 Columbia MG137313
1943 Columbia MG156811
1944 Cushman Airborne 53 34129 dod 11/15/44
1944 Cushman airborne 53 34334 dod 11/18/44
1944 Cushman Airborne 53 34430
1944 Cushman Airborne 53 34707
1945 Cushman Airborne 53 36560
1944 John Wood M3A4 27561
1944 GMC CCKW 353 382025
- crazychevelleman
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Re: 1942 Ford GPW #20385883 rebuild
NOS Ford GPW connecting rods that I purchased for my rebuild. Rods 1 and 3 cyl. I also have 2 and 4 cyl.
Last edited by crazychevelleman on Fri Aug 30, 2019 7:35 am, edited 1 time in total.
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- wo2jeeper
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Re: 1942 Ford GPW #20385883 rebuild
please do check them before installing. They mostly are correct but I had one that wasn't. And make sure the are in balance of their weight. If you checked that you should have a very nice set of rods.
- crazychevelleman
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Re: 1942 Ford GPW #20385883 rebuild
- wo2jeeper
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Re: 1942 Ford GPW #20385883 rebuild
I used plastigauges, they come in very handy. Just google and you will find the answer. One of mine was just to tight, after 2 sets of bearings I found out that one new rod was out of specs. So messure to know, don't install blind thinking it will be correct right out of the box. Perhaps I just only had bad luck, but you never know.
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Re: 1942 Ford GPW #20385883 rebuild
Ask a machine shop to do a dimension check if you are not sure. Torque the caps and check the big ends for size/roundness.
They can check for twist too.
I have had a few NOS engine parts that were not quite in spec.
Ed
They can check for twist too.
I have had a few NOS engine parts that were not quite in spec.
Ed
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56 DJ-3A for sale
45 GPW 271022, USMC 46 CJ-2A 2WD"gasser"
50 CJ-V35
58 CJ-3B
57 DJ-3A chassis for sale
- crazychevelleman
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Re: 1942 Ford GPW #20385883 rebuild
Update: Engine build is progressing, the rods were checked all NOS 1 & 3 and 2 & 4. I am doing a little upgrade and having the engine fully balanced, 3 angle valve job, hardened seats and stainless steel valves. The block is being sleeved back to original with Std. pistons and rings. I tried to find a standard crankshaft but could not. Hope to give you fellers new updates and pics soon. Be encouraged and finish your build! GOD Bless America, GOD shed his Grace on U.S. !
- Old Pal
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Re: 1942 Ford GPW #20385883 rebuild
What did you coat the inside of your transfer case with? It doesn't look like standard red oxide?
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