First MUTT restoration-M151A1

A place to post pics and descriptions of ongoing restoration projects

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csmith
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Re: First MUTT restoration-M151A1

Post by csmith » February 13th, 2020, 6:27 pm

Ditto, very nice!
1976 M151A2 4 Color Cammo Mutt, aquired August 09
1976 or 7? M151A2 "Miss Sandy" Driver, aquired May 2010
Former owner M151A2 "Miss Saigon" Vietnam Rescue Sold Sept 09
Fond appreciation for the M151 Breed!!

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attackpilot
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Re: First MUTT restoration-M151A1

Post by attackpilot » February 28th, 2020, 11:45 pm

Wow. Just wow.

I read this whole thread and checked the dates of the postings, and I officially don’t even know what I’m doing with my (MUTT) life anymore.

Very nice work!
1966 Ford M151A1
1997 Jeep Cherokee XJ
2014 Jeep Wrangler Unlimited Polar

RIP: 1996 Jeep Cherokee XJ (Sold), 1993 Jeep Wrangler YJ (Rolled), 1987 Suzuki Samurai x3 (Sold, Rolled, Junked).

rickf
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Re: First MUTT restoration-M151A1

Post by rickf » February 29th, 2020, 12:16 pm

Yea, I don't think he slept much that year! Did you notice that before he moved he had a barn to work in and after he moved it was a little garage. That has to be a shock!
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

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attackpilot
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Re: First MUTT restoration-M151A1

Post by attackpilot » March 1st, 2020, 6:19 pm

I have a 1200 sq ft shop, 3 kids, and a lot of excuses.

Time to get some work in for sure!
1966 Ford M151A1
1997 Jeep Cherokee XJ
2014 Jeep Wrangler Unlimited Polar

RIP: 1996 Jeep Cherokee XJ (Sold), 1993 Jeep Wrangler YJ (Rolled), 1987 Suzuki Samurai x3 (Sold, Rolled, Junked).

rwhimes
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Re: First MUTT restoration-M151A1

Post by rwhimes » March 26th, 2020, 10:01 pm

Grinding my gears
Alright guys, it was time to start her up for the first time the other day and the dang starter made an awful grinding noise. I pulled the starter motor back off and there were a few chips on the teeth of the Bendix. I tired lubricating the Bendix, but had the same gear grinding noise. So I hit the forum and found out that I should check the status of the bushing that the starter armature rests in, up in the flywheel housing. What bushing...there was nothing there! Indeed, what was probably once a perfectly circular hole had been worn oblong by the starter motor wobbling around in it over the years. Anyone who has been in this situation knows that at this point, the only thing to do is scream because this bushing sits in a hole which is just smaller than most human hands and just deeper than most fingers can conceivably reach.

I didn't find these bushings at the usual suppliers, but found several at McMaster Carr which appeared to be the correct dimension; I ended up going with #6381K141. Since the seat for the bushing had been worn over many years, the bushing didn't seat very firmly. I ended up using some JB Weld to epoxy it into place. Now a tip for installation...it turns out that the bushing fits perfectly on the end of a Craftsman 1/2" socket driver extension. It was a simple matter to seat the bushing that way. Below is the finished product.
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1966 Ford M151A1
1954 Dodge M37

rwhimes
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Re: First MUTT restoration-M151A1

Post by rwhimes » March 26th, 2020, 10:39 pm

Some Final Details

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Needed to get a piece of glass cut for the windshield. Went to my local mom & pop auto glass shop confident that they'd be able to help. When I saw a 19 yr old kid behind the counter, I knew I was in for trouble..."I'm sorry sir, is it a Ford or a Jeep??...because it can't be both...I'm not showing anything like that in my book...Sally, can we do glass for an M151A1??...let me go get another book" Me: "It's not going to be in your book, any of them....please find the proprietor...this is the simplest piece of glass you'll do all week". Finally got to a guy with some grey hair who was happy to help.

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The wiper motor on the jeep actually worked, so just a little cosmetic work to pretty it up. I was missing the stud for the wiper linkage on the driver's side, but found a very close replacement. Mine didn't appear to have had a gasket between it and the windshield when I removed it, but one is shown in the parts book. Back to Amazon for some bulk rubber sheeting from which I cut this one.

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Thanks to muttguru for providing the info to stamp the dataplate.
1966 Ford M151A1
1954 Dodge M37

acudanut
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Re: First MUTT restoration-M151A1

Post by acudanut » March 26th, 2020, 11:58 pm

Wow that jeep looks like rolled off the assembly line. Cheers !!
I would be afraid to drive it. Very, Very NICE

rwhimes
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Re: First MUTT restoration-M151A1

Post by rwhimes » May 3rd, 2020, 10:46 pm

Having gotten most of the MUTT back together, it was of course time to start finding things which need to be done and (1) would have been much easier if I did them at some earlier stage of the project (2) invariably involve taking apart things that I'd hoped I'd never have to get into again. This time it was the puddle of gear oil accumulating under the transfer case. Turns out that the front and rear output shaft seals looked suspect. In my rush to get the power pack installed ahead of the move, I hadn't paid much attention to the transfer and transmission.
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As many on this site have pointed out, the rear is very easy to replace. The most difficult part was removing the prior wear sleeve from the shaft-it had a very subtle valley worn in it and I figured that I'd come too far to not replace everything. I wound up cutting the sleeve off with a Dremel tool and then pressing the new one on.
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Now, the front output shaft seal was an entirely different story and I'll presume that a picture (below) is worth a thousand (mostly profane) words.
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Finished product below. I used a large socket to drive the new seal into the transfer case and coated the seating surface in Hylomar Blue beforehand.
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Filled up the transfer case with gear oil this afternoon and so far, dry as a bone underneath it!
1966 Ford M151A1
1954 Dodge M37

rickf
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Re: First MUTT restoration-M151A1

Post by rickf » May 4th, 2020, 9:21 am

Wait till you have to replace that little tiny seal in the transfer shifter rod! Mine has been leaking for many years but it has gotten to the point where it is like there is no seal.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

rwhimes
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Re: First MUTT restoration-M151A1

Post by rwhimes » September 8th, 2020, 10:34 pm

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Well had the MUTT back together and enjoyed a few trips around town before I started having trouble starting it. Specifically, sometimes the starter Bendix wasn't fully engaging the teeth of the ring gear. I tried replacing the Bendix (had some tooth wear)-didn't fix the problem. I'd already addressed the starter bushing in the flywheel housing, which I learned late in the game was actually missing. The only thing I can figure is that teeth on the ring gear are chipped/worn. In retrospect the hole in the flywheel housing had been worn into an eccentric shape due to the missing bushing. I imaging this led to incomplete engagement of the starter Bendinx on the ring gear and thus wear and chipping of its teeth. So my Labor Day weekend project was building this stand to hold the power pack when I remove it to replace the both the ring gear. On the bright side, maybe now that I have a nice M151 engine stand, I need to get another MUTT so I can get more use out of it!

While I have the power pack back out, planning on replacing the 4WD shifter seal, as Rick mentioned. While I was able to finagle the front and rear output shaft seals in situ, it sounds like the 4WD seal is best done on the bench.
1966 Ford M151A1
1954 Dodge M37

rwhimes
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Re: First MUTT restoration-M151A1

Post by rwhimes » September 8th, 2020, 10:44 pm

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Got the registration details painted on the other day...back before I knew I'd be taking the power pack back out!!!
Left the paint mask stencils on too long and probably went too heavy on the paint, thus had to do a fair bit of touch up by hand, but hardly noticeable.
1966 Ford M151A1
1954 Dodge M37

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