The Submarine Jeep

feel the need to change or modify your mutt? This is the place to discuss it.

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The Submarine Jeep

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The Submarine Jeep

Postby Nick_ » February 16th, 2017, 10:57 pm

Does it count if the mods around my Mutt are the body and frame?

This is a cross-post between my thread here: http://www.thecj2apage.com/forums/the-s ... 38325.html
I enjoy the technical information on G838, you guys have provided valuable information regarding this restomod I haven't found anywhere else.

Pictures at my buddy's.
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The "Submarine Jeep" started out life as a 1946 CJ2A, and the original family installed an M151A2 powerpack in during the 1970's. I purchased this from a good buddy who I've sold Jeeps to as well. We're both restoring each other's projects, which is neat. I've spent significant time deciding on a route for this project. Initially I was going to slap some paint on and wheel it. It has quickly turned into a total refurbish which I'm going to finish by the end of summer - to go wheeling with my college buddies. I do plan on submerging the Jeep! Why else own a Mutt drivetrain?

Specs:
1946 CJ2A chassis - frame to be replaced
M151A2 powerpack w/ waterfording valve
Homemade body
5.38 gears

Future specs:
7.00x16 tractor tires
Full cage, seat belts
WWII SAS/LRDG theme
Front disc brakes
Dual reservoir master cylinder
Welded rear axle
Intake/exhaust snorkels
Electric puller fan

3d render - this is constantly evolving.
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Current progress: Have drive the Jeep around the block, but the transmission most likely needs rebuilt (as it doesn't shift into 1st or 2nd). Somehow I picked up a powerpack for $200 with the 24V generator. My plan is to swamp transmissions and install the coveted generator. The current Jeep frame is bent from years of plowing in Colorado. I'm picking up a sandblasted and primed frame shortly. There's been some major body repairs, also turning it into a fake MB. Most my progress has been accumulating information and parts so I can work quickly during the summer.

16'' flex front
18'' flex rear
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Body repairs
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Hydraulic clutch?
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2nd powerpack
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Questions:
1. Where should I send this generator to be refurbished?
2. I'm considering buying a factory Mutt exhaust snorkel. I like the size and the cage around it. My plan is to cutt it down to fit the roll bar. Since it would be my only muffler, how quiet are they?
3. Are there smaller batteries I can use to run the engine? My engine bay is limited.
Nick_
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Re: The Submarine Jeep

Postby rickf » February 17th, 2017, 8:00 am

There is no muffler in the snorkel, it is just a straight piece of pipe. The stock muffler is just a straight through setup as it is so the stock setup with the snorkel is not all that quiet. If you are not running any muffler at all it will be loud and raspy. Also kind of expensive considering it is designed to fit a mutt and will have to be heavily modified to fit your application. Might as well have a shop build one from scratch.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
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Re: The Submarine Jeep

Postby Nick_ » June 14th, 2017, 10:15 pm

If you'd like to see detailed updates of this build go here: https://www.thecj2apage.com/forums/the-submarine-jeep_topic38325_page1.html

Thought you guys would enjoy the incorporation of an original M151 tranny cover.

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Of course the seats needed to be modified to fit.

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Re: The Submarine Jeep

Postby rickf » June 15th, 2017, 7:47 am

Is the transmission going to tuck up in there with room for the e-brake drum? Floor looks good and clean but if you are planning on submerging this a lot I would think it would have a a lot more drainage.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
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Re: The Submarine Jeep

Postby Nick_ » June 15th, 2017, 8:15 am

rickf wrote:Is the transmission going to tuck up in there with room for the e-brake drum? Floor looks good and clean but if you are planning on submerging this a lot I would think it would have a a lot more drainage.


I was smart enough to mock up the main dimensions of the cover before removing the tub.

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As for the drainage: The front section of the floor was patched. At the area where the floor steps up, there's a few 10" long slots where I didn't weld them together.
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Re: The Submarine Jeep

Postby m3a1 » September 15th, 2017, 8:38 am

Wow, that's interesting.

I'd love to see a picture or two from below.

Several questions for you -

Where does the go-pedal go? Things look kinda crowded in the driver's footwell. :shock:

Out of curiosity, was this swap solely for the purpose of doing submersible stuff or because this was just an extra power pack you had laying around?

Are you going to reseal your power pack and driveline before going in the water? This is something you should give very serious consideration to. Older seals may still do a good job of holding oil and grease in but those things aren't under the kind of pressure that water presents. Take it from an old SCUBA diver...water under pressure is chiefly the problem that submergence presents. There is a very good chance that water will be migrating into your truck's working parts past older seals.

Cheers,
TJ
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Re: The Submarine Jeep

Postby rickf » September 15th, 2017, 6:53 pm

Fording kit, It pressurizes the innards so no water gets in. The engine anyway. You could make a system from a small compressor to do the trans and diffs under the same principal. You only need a 1/2 il. of pressure at the most injected through the vent fitting. Valved to atmosphere normally.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
rickf
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Joined: November 26th, 2007, 12:28 pm
Location: Pemberton, NJ.


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