GTB Build

Military Trucks 1/2 ton thru 2 ton, Wanted, For Sale (NO AUCTION or EBAY), and Knowledge Base
Post Reply
User avatar
1943Willysgpw
G-Major General
G-Major General
Posts: 2740
Joined: Wed Sep 11, 2013 9:02 am
Location: Edmond, OK

Re: GTB Build

Post by 1943Willysgpw » Thu Jan 25, 2018 7:18 am

Did some work on the exhaust and intake manifolds. Here is the before pictures. I will post the after pics when I am completely finished. When welding cast iron just remember to heat the cast and weld it with nickel. drill a small hole at the beginning and end of all cracks. cut a V grove in the cracks and weld. Do a very small bead and stop. Use a pick hammer to tap the molten nickel into the V groove as it cools. When it cools do another small bead and repeat.
Attachments
IMG_0514.JPG
IMG_0514.JPG (111.64 KiB) Viewed 1533 times
IMG_0513.JPG
IMG_0513.JPG (79.65 KiB) Viewed 1533 times
IMG_0515.JPG
IMG_0515.JPG (103.14 KiB) Viewed 1533 times
IMG_0518.JPG
IMG_0518.JPG (84.49 KiB) Viewed 1533 times
"None of us are as smart as all of us"

1942 GPW 1871 DoD 2-27-42 Dallas Plant
1945 GPW 247890 DoD 1-26-45 Louisville Plant
1942 GTB 136166 DoD 9-18-42
1942 GTB 135938 DoD
1952 M100


gentrysgarage
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 300
Joined: Tue Nov 24, 2015 6:25 pm
Location: Lost Angels California

Re: GTB Build

Post by gentrysgarage » Thu Jan 25, 2018 1:45 pm

Don't for get post heat and/or packing it in warm sand to help minimize the chance of it cracking next to the weld!

Love following your project..keep the pictures coming!!!
Proud caretaker of U.S.A. truck 3219442-S 1943 Chevrolet Cab Over Engine 1 1/2 4x4

kelley
G-Colonel
G-Colonel
Posts: 1582
Joined: Tue Aug 28, 2012 4:17 pm
Location: Massachusetts (The Pay state)

Re: GTB Build

Post by kelley » Thu Jan 25, 2018 3:10 pm

I've never had tremendous success welding cast iron, particularly exhaust manifolds, but I will offer up a couple of tips i have learned...
I think I read this one on the Power Wagon forum, It said to use a die grinder with a carbide burr to V out the cracks instead of a grinder. The reason given was a grinding wheel will impregnate the cast iron with abrasive particles contaminating the weld joint, a carbide cutter will not. I have not tried it but it made sense.
Another is to put it in the over for a while to warm it up, pull it out to weld it and then put it back in. Repeat until finished and slowly turn down the heat over 8 hours or so until cool.
Lastly, wood ash is a tremendous insulation, heat it up with a torch, weld a bit and the bury it in a wheel barrow full of wood stove ash.
Best of luck with it.
Kelley

User avatar
1943Willysgpw
G-Major General
G-Major General
Posts: 2740
Joined: Wed Sep 11, 2013 9:02 am
Location: Edmond, OK

Re: GTB Build

Post by 1943Willysgpw » Fri Jan 26, 2018 5:24 am

Great point. I forgot to mention that I used carbide tip on a die grinder. I used a bucket of sand for the final cooling. I do have a bucket of ash. Which would be better? Thanks again for filling in details.
"None of us are as smart as all of us"

1942 GPW 1871 DoD 2-27-42 Dallas Plant
1945 GPW 247890 DoD 1-26-45 Louisville Plant
1942 GTB 136166 DoD 9-18-42
1942 GTB 135938 DoD
1952 M100

Peterdodge6volt
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 362
Joined: Tue Apr 19, 2016 9:19 pm
Location: Australia

Re: GTB Build

Post by Peterdodge6volt » Tue Apr 17, 2018 9:58 pm

Wwwoooww that's really nice project you got their.
I enjoy reading this thread.

User avatar
1943Willysgpw
G-Major General
G-Major General
Posts: 2740
Joined: Wed Sep 11, 2013 9:02 am
Location: Edmond, OK

Re: GTB Build

Post by 1943Willysgpw » Mon Apr 23, 2018 8:19 am

Two wheels done.
Attachments
IMG_0801.JPG
IMG_0801.JPG (41.57 KiB) Viewed 1353 times
Last edited by 1943Willysgpw on Mon Apr 23, 2018 8:22 am, edited 1 time in total.
"None of us are as smart as all of us"

1942 GPW 1871 DoD 2-27-42 Dallas Plant
1945 GPW 247890 DoD 1-26-45 Louisville Plant
1942 GTB 136166 DoD 9-18-42
1942 GTB 135938 DoD
1952 M100

User avatar
1943Willysgpw
G-Major General
G-Major General
Posts: 2740
Joined: Wed Sep 11, 2013 9:02 am
Location: Edmond, OK

Re: GTB Build

Post by 1943Willysgpw » Mon Apr 23, 2018 8:20 am

Started on the front axle this weekend. BTW, this crap is heavy, HEAVY
Attachments
IMG_0816.JPG
IMG_0816.JPG (48.82 KiB) Viewed 1353 times
IMG_0823.JPG
IMG_0823.JPG (34.52 KiB) Viewed 1353 times
IMG_0821.JPG
IMG_0821.JPG (44.84 KiB) Viewed 1353 times
IMG_0822.JPG
IMG_0822.JPG (33.1 KiB) Viewed 1353 times
"None of us are as smart as all of us"

1942 GPW 1871 DoD 2-27-42 Dallas Plant
1945 GPW 247890 DoD 1-26-45 Louisville Plant
1942 GTB 136166 DoD 9-18-42
1942 GTB 135938 DoD
1952 M100

User avatar
1943Willysgpw
G-Major General
G-Major General
Posts: 2740
Joined: Wed Sep 11, 2013 9:02 am
Location: Edmond, OK

Re: GTB Build

Post by 1943Willysgpw » Mon Apr 23, 2018 8:22 am

If you notice the first picture on my last post. I have to replace the bearing and seat for the differential. That was the only piece (other than the seals) that needed replaced. Got lucky. Plus it helps that I have extra differentials from the donor truck.
Last edited by 1943Willysgpw on Mon Apr 23, 2018 11:39 am, edited 1 time in total.
"None of us are as smart as all of us"

1942 GPW 1871 DoD 2-27-42 Dallas Plant
1945 GPW 247890 DoD 1-26-45 Louisville Plant
1942 GTB 136166 DoD 9-18-42
1942 GTB 135938 DoD
1952 M100

User avatar
1943Willysgpw
G-Major General
G-Major General
Posts: 2740
Joined: Wed Sep 11, 2013 9:02 am
Location: Edmond, OK

Re: GTB Build

Post by 1943Willysgpw » Mon Apr 23, 2018 8:24 am

Peterdodge6volt wrote:
Tue Apr 17, 2018 9:58 pm
Wwwoooww that's really nice project you got their.
I enjoy reading this thread.
Thank you.
"None of us are as smart as all of us"

1942 GPW 1871 DoD 2-27-42 Dallas Plant
1945 GPW 247890 DoD 1-26-45 Louisville Plant
1942 GTB 136166 DoD 9-18-42
1942 GTB 135938 DoD
1952 M100

User avatar
1943Willysgpw
G-Major General
G-Major General
Posts: 2740
Joined: Wed Sep 11, 2013 9:02 am
Location: Edmond, OK

Re: GTB Build

Post by 1943Willysgpw » Tue Apr 24, 2018 7:42 am

Sand blasting the backing plates for the front axle today.
Attachments
IMG_0829.JPG
IMG_0829.JPG (90.71 KiB) Viewed 1323 times
IMG_0830.JPG
IMG_0830.JPG (99.1 KiB) Viewed 1323 times
"None of us are as smart as all of us"

1942 GPW 1871 DoD 2-27-42 Dallas Plant
1945 GPW 247890 DoD 1-26-45 Louisville Plant
1942 GTB 136166 DoD 9-18-42
1942 GTB 135938 DoD
1952 M100

Dbaumanjr
G-Master Sergeant
G-Master Sergeant
Posts: 113
Joined: Sun Jan 11, 2015 9:05 am
Location:

Re: GTB Build

Post by Dbaumanjr » Fri May 04, 2018 12:48 pm

It was good to meet you here in Toledo, Dwayne.
I hope you enjoyed our shop too.
Please keep the pictures coming!
Darryl
Real Jeeps are Olive Drab
'67 M715 w/winch
'66 M718 Frontline Ambulance
'64 M274a1 Finished!
'58 M274 Finished!

User avatar
1943Willysgpw
G-Major General
G-Major General
Posts: 2740
Joined: Wed Sep 11, 2013 9:02 am
Location: Edmond, OK

Re: GTB Build

Post by 1943Willysgpw » Fri May 04, 2018 1:59 pm

Same here. The shop is awesome. Soooo much History there. Thank you and Bud for sharing it with me.
"None of us are as smart as all of us"

1942 GPW 1871 DoD 2-27-42 Dallas Plant
1945 GPW 247890 DoD 1-26-45 Louisville Plant
1942 GTB 136166 DoD 9-18-42
1942 GTB 135938 DoD
1952 M100

User avatar
1943Willysgpw
G-Major General
G-Major General
Posts: 2740
Joined: Wed Sep 11, 2013 9:02 am
Location: Edmond, OK

Re: GTB Build

Post by 1943Willysgpw » Wed May 09, 2018 1:23 pm

Pulled it to the front of the shop.
Attachments
IMG_0869.JPG
IMG_0869.JPG (161.4 KiB) Viewed 1260 times
"None of us are as smart as all of us"

1942 GPW 1871 DoD 2-27-42 Dallas Plant
1945 GPW 247890 DoD 1-26-45 Louisville Plant
1942 GTB 136166 DoD 9-18-42
1942 GTB 135938 DoD
1952 M100

User avatar
1943Willysgpw
G-Major General
G-Major General
Posts: 2740
Joined: Wed Sep 11, 2013 9:02 am
Location: Edmond, OK

Re: GTB Build

Post by 1943Willysgpw » Wed May 09, 2018 1:24 pm

Differential inner seals.
Attachments
IMG_0885 (1).JPG
IMG_0885 (1).JPG (123.96 KiB) Viewed 1259 times
IMG_0884.JPG
IMG_0884.JPG (130.52 KiB) Viewed 1259 times
IMG_0883.JPG
IMG_0883.JPG (129.13 KiB) Viewed 1259 times
IMG_0882.JPG
IMG_0882.JPG (89.12 KiB) Viewed 1259 times
IMG_0880.JPG
IMG_0880.JPG (113.24 KiB) Viewed 1259 times
"None of us are as smart as all of us"

1942 GPW 1871 DoD 2-27-42 Dallas Plant
1945 GPW 247890 DoD 1-26-45 Louisville Plant
1942 GTB 136166 DoD 9-18-42
1942 GTB 135938 DoD
1952 M100

User avatar
1943Willysgpw
G-Major General
G-Major General
Posts: 2740
Joined: Wed Sep 11, 2013 9:02 am
Location: Edmond, OK

Re: GTB Build

Post by 1943Willysgpw » Fri May 11, 2018 1:31 pm

Pinion races are replaced.
Attachments
IMG_0890.JPG
IMG_0890.JPG (130.23 KiB) Viewed 1238 times
IMG_0889.JPG
IMG_0889.JPG (140.97 KiB) Viewed 1238 times
IMG_0888.JPG
IMG_0888.JPG (149.41 KiB) Viewed 1238 times
"None of us are as smart as all of us"

1942 GPW 1871 DoD 2-27-42 Dallas Plant
1945 GPW 247890 DoD 1-26-45 Louisville Plant
1942 GTB 136166 DoD 9-18-42
1942 GTB 135938 DoD
1952 M100


Post Reply

Return to “Trucks 1/2 ton thru 2 ton”

Who is online

Users browsing this forum: No registered users and 58 guests