Found another Chevy

Military Trucks 1/2 ton thru 2 ton, Wanted, For Sale (NO AUCTION or EBAY), and Knowledge Base
kelley
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Re: Found another Chevy

Post by kelley » Sat Jun 24, 2017 2:32 pm

I stayed after work a couple nights and managed to cobble enough things together to take the old '45 out for a short ride today. One of the hurdles I had to jump thru was getting the T case cleaned out and getting the shifter rods freed up and functioning. The gear oil that came out of the drain plug was really old and thick so I thought it would be a good idea to rinse the whole thing out.
I did this by installing the jack shaft and filling the T case with diesel fuel and then running the engine for a few minutes in different gears. I repeated this 3 times and called it good enough. I also put floor jacks under the left side to improve drainage.
T case rinse.jpg
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For whatever reason the diesel fuel didn't really leak by the oil seals but the gear oil sure does, this thing leaks like a screen door on a submarine.
T case leaks.jpg
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Along with the first drive came the first accident, having only a parking brake wasn't enough to stop me from crashing into the firewood rack.
Wood rack.jpg
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The damage was minimal, only bent the bumper.
Bent bumper.jpg
Bent bumper.jpg (129.45 KiB) Viewed 569 times
Cruiser.jpg
Cruiser.jpg (85.31 KiB) Viewed 569 times
Kelley

forestry4evr
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Re: Found another Chevy

Post by forestry4evr » Sat Jun 24, 2017 2:52 pm

That's just too cool Jon! First drives are the most fun even with a little crash...you are the right man to fix that kind of metal issue.

I was told that that crashing into soft targets was they way they stopped my 42 truck before she was finally put out to pasture.

kelley
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Re: Found another Chevy

Post by kelley » Sat Jun 24, 2017 5:14 pm

Thanks Paul,
Taking the first ride became an obsession as soon as I got the sheet metal on, there's lots of things to revisit (like the bumper and leaky transfer case) but well worth it.
Hi Kirk,
The cowl seems like it should have had some kind of doubler under it, kind of like the windshield hinges. Best to do somethings before paint.
I guess smashing into the wood rack sorta proves I'm a bit of a "Leadfoot" Huh Dave? Coming out the back door of the shop is a little tight, i guess i was going a little too fast :oops:. BTW those tires are "Mile Mark" 8.25x20's. I bought them used on Craigslist, they are in great shape except for some cracking on the side walls, i wish i had a couple more.
Milemark.jpg
Milemark.jpg (75.8 KiB) Viewed 558 times
Another issue that I had to deal with was not being able to get enough adjustment out of the clutch. I ended up shimming out the pivot ball on the inside of the bell housing and it made a world of difference. Has anyone else had problems with this? I removed the 7/16'' internal tooth washer and replaced it with a 7/16'' flat and lock washer.
Clutch fork shim.jpg
Clutch fork shim.jpg (73.61 KiB) Viewed 558 times
Kelley

kelley
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Re: Found another Chevy

Post by kelley » Sat Jun 24, 2017 5:42 pm

Last but not least I had a hell of a time getting the drivers door to open from the inside of the cab. I took the inside panel off and found little critters had made a home.
drivers door.jpg
drivers door.jpg (131.92 KiB) Viewed 557 times
Does anyone have a source for a new door handle and related hardware?
drivers door handle.jpg
drivers door handle.jpg (136.57 KiB) Viewed 557 times
Kelley

cooler king
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Re: Found another Chevy

Post by cooler king » Sun Jun 25, 2017 5:50 pm

Your fork maybe worn out. I think I recall on mine it was worn thin where it slides into the throw out bearing. Throwing the geometry off at the pivot ball. Your washer pitched the fork back . Gave you some more adjustment. Just a guess. It was years ago I was into mine. The ball could be worn screwing things up.


kelley
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Re: Found another Chevy

Post by kelley » Mon Jun 26, 2017 2:13 am

Thanks Cooler King,
I think all the moving parts are worn creating an accumulation of tolerances. Non of them looked excessively worn, I guess it all adds up.
Kelley

phillip.w.givens
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Re: Found another Chevy

Post by phillip.w.givens » Mon Jun 26, 2017 3:22 pm

Jon
I have seen all the parts on ebay and in all the resto parts suppliers books. Just have to shop around for the best price

Phillip
1942 chevy G506
1942 G7113 Tractor

D.R.H.
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Re: Found another Chevy

Post by D.R.H. » Mon Jun 26, 2017 5:08 pm

Jon, click this link. It will take you right to the section Phil was talking about. I have found some really great parts in this section. Dave.

https://www.ebay.com/sch/i.html?_from=R ... s&_sacat=0
In Loving Memoriam: George R. Hancock. 20 Mar. 1938 - 11 Jan. 2017. U.S.A.F. 1956 - 1962. R.I.P. Dad.

forestry4evr
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Re: Found another Chevy

Post by forestry4evr » Mon Jun 26, 2017 6:19 pm

Jon,

You are on the mark with the accumulation of wear. The most pronounced items are flywheels and pressure plates that are surfaced too many times. A few thousands here and a few thousands there are greatly magnified at the fork adjuster. The washer is a good method to accommodate for the "shorter" stack of clutch related parts. Easier to remedy items are the fork and adjuster hook, look for obvious wear and you can build them back by adding metal. If the socket part of the fork is worn out, junk it and find an NOS one, they show up.

Paul

kelley
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Re: Found another Chevy

Post by kelley » Tue Jun 27, 2017 5:35 pm

Thank you all for the information and links, it's super helpful to have so many Chevy experts to lean on for guidance. :D
Kelley

kelley
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Re: Found another Chevy

Post by kelley » Mon Jul 24, 2017 4:52 pm

Hi Guys,
Put the doors aside for a while, they are more of a mess than i originally thought.
I have read the transfer case section of several TM's to the point where I almost have them memorized. Here's a stand I made to support the case during the process. The case that's in the pic came out of my '42 and has a damaged case, most of the internals are in really good shape. As a practice run I dis assembled and re assembled this case to see how it went, the books really do a great job of guiding you thru the process.
T Case stand-1.jpg
T Case stand-1.jpg (99.81 KiB) Viewed 322 times
Here it is all stripped out...
T case take down 1.jpg
T case take down 1.jpg (91.99 KiB) Viewed 322 times
The good book references a Kent Moore puller, I didn't even bother looking, I made my own.
Kent moore puller.jpg
Kent moore puller.jpg (94.28 KiB) Viewed 322 times
Knock off puller.jpg
Knock off puller.jpg (93.74 KiB) Viewed 322 times
Found a bad bearing inside...
bad bearing.jpg
bad bearing.jpg (69.14 KiB) Viewed 322 times
The "Good" transfer case i took apart has a couple of badly chipped gears, I think I'm going to end up with a salad transfer case.
Here's the axle flange nuts from the "Good" case..., Is it really that hard to find a 1-1/2'' socket?
Axle flange nuts.jpg
Axle flange nuts.jpg (103.85 KiB) Viewed 322 times
More to come...
Kelley

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Re: Found another Chevy

Post by 42cargo » Mon Jul 24, 2017 5:03 pm

I like the frame and puller you built. Very impressive.

John
G503 GPW Parts Wanted
Original F-marked bracket to hold battery in place and one J-bolt
Original F-marked front bumper

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retro-roco
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Re: Found another Chevy

Post by retro-roco » Mon Jul 24, 2017 7:07 pm

I continue to be amazed by your shop-craft. You are truly a metal working artist!
Pvt. Kirk Gustafson
23rd Regt. 2nd Infantry Div. WWII HRS

1942 Chevy G506 1-1/2 ton 4x4 Cargo w/ winch
194? Ben Hur water trailer

kelley
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Re: Found another Chevy

Post by kelley » Sun Aug 13, 2017 6:30 am

Thanks Guys,
The stand and puller really helped me out, I've managed to go thru and re install 2 cases. I replaced a few bearings and combined the best parts of 3 cases to make 2, it seemed to go well.
nice slide gear.jpg
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underside of covers.jpg
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speedy sleeve.jpg
speedy sleeve.jpg (70.95 KiB) Viewed 211 times
The case that came out of my '45 had these locking plates over the bolts that i have not seen before.
Bolt keepers.jpg
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removal.jpg
removal.jpg (99.98 KiB) Viewed 211 times
The bolts were all super tight, 3 or 4 of them broke. The bolts have been in there for a long time, the shanks were wearing out from supporting the weight of the case.
Worn T case bolt.jpg
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Bolt.jpg
Bolt.jpg (80.1 KiB) Viewed 211 times
Broken bolts.jpg
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Here it is getting ready to go back under the truck. I used a 1'' ratchet strap to secure the case to the floor jack.
overhaul stand.jpg
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I added a street elbow to the filler hole to increase the oil capacity a little.
Street elbow.jpg
Street elbow.jpg (99.73 KiB) Viewed 211 times
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forestry4evr
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Re: Found another Chevy

Post by forestry4evr » Sun Aug 13, 2017 6:53 am

Jon,

What year truck did the top plate on the right side come from? Looks like the diagonal relief sections helped with oil distribution in some way, none of the 1941-42 cases I have removed had that design.

The t-case bolt lock plates were originally on all of the trucks. Where did you source the replacement bolts with the holes?

Looks like you are in the T-case rebuilding business, and making good progress.

Paul

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