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303M HydraMatic rebuild

rustystud

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back when i was a highway super we had a very-nice 1967 Cat 12F grader with a turbocharged big & deep 4-cylinder .. The machine was a powerhouse compared to the I6 non-turbo sitting in their previous grader .. After i left they sold it to a junkyard (for maintaining a mile of driveway and the yard roads) where i saw it one day .. Made conversation with the owner about how great a machine it is and how those old Cats don't like being wound out cold right out of the gate, but he already knew that. A week later i stopped by and learned his kid had not listened to him and thusly blew the engine within 5 minutes of firing it up
That's how I was able to buy one of my 1954 REO trucks.
The Oregon forest Service had a Deuce REO for sell. The engine was bad. That was all it said. I bought it sight unseen and went down there with my good buddy to tow it home. When we arrived, I was able to talk with the shop foreman about the trucks history.
I asked how the engine was destroyed since they had already removed it. He said this new hire kid was told to start-up the Deuce and when it was warmed up bring it down to the staging area. This kid got into the Deuce, started it up and without any warm-up drove it at max RPM down the hill. It got about 500 feet before throwing a rod through the block. They were unable to find a new engine, so the truck went up for sell.
I guess the moral of these stories is we should keep stupid young kids from our equipment until they get a few years under their belts.
 

rustystud

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Went to the machinist today to pick up some new parts he made for me.
We talked about the throttle shaft and now he believes he can make one out of 303 stainless steel.
We also talked about making new pump vanes. He has some tool steel that might work, but they still need to be hardened to 60 Rockwell.
At this time I don't how many he will need to make for a run. I mentioned 70 which would give me the ability to repair 10 pumps. He mentioned maybe 700. He said he would come up with a price for me soon.

On a different note. Do you want to see what $1200.00 will get you ?
002.JPG I had six oil cooler nuts and 10 washers made up from 303 stainless steel. Believe me, I didn't know it was going to cost that much ! Next time I will get the quote first before saying "go ahead and make them up".
 

rustystud

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then you won't want to know about an untouched complete M215 (and a few others of the type) plus loads of parts sitting just 20 minutes south of me :( .. owner/collector died, his son can't decide what to do with it all, overwhelmed

If i were 30 or 40yrs younger they would be in my yard
You guys back East get all the good deals !
 

rustystud

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Woodinville, Washington
Well we've come to the end of the 303M rebuild.
These last two items are all that is needed to finish the rebuild. I know the "fluid coupling is not installed, but since this transmission is going into storage you do not want the coupling and the insides of the transmission open to dust and dirt. Plus there is really nothing to installing the coupling. Just a snap ring and the large nut.

First off is the side cover. I know, what can you say about a side cover right ? Well you do need to know that the bolt holes go through the housing on almost all the holes. This means you must seal the threads of the 1/4" X 1/2" bolts. I know there are a few that are "encapsulated" , but since the machining sometimes pushed through the housing in these holes they still allow fluid to escape through the threads. So I just put "Silicone RTV" on all the threads of the bolts.

005.JPG

Second item is the "Front Band Adjusting Rod" . This item just needs to be eliminated.
It serves no useful purpose and usually just ends up in the bottom of the oil pan. No civilian HydraMatic transmission ever used this "device" and for good reason.


003.JPG img041.jpg

I'm putting this transmission away for now. Later when I have time I'll find a good Chevy 350 engine and install this transmission on it and put them in my 1954 REO Deuce. That should be fun to drive !
Putting the transmission into it's "cradle" for the last time.
002.JPG

Here I'm installing the factory "front shipping and storage cone" . It screws into the front shaft threads.

006.JPG007.JPG008.JPG
001.JPG002.JPG003.JPG
Ready for storage.
 
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msgjd

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upstate ny
You guys back East get all the good deals !
It may seem that way, but not a good deal for the sellers .. There's two reasons

1: Few people spend $ on MV's, old-school truck projects, and other hobbies during times of uncertainty
2: Decline of interest in pre-1985 MV's .. I had a fair construction/quarry/hobby client list until 2015

I noticed the heavy equip/truck/farm tractor market start its decline in late-2009 and continue to sink deeper into the latrine thru the 20-teens. I'm talking about heavy equipment/tractors/parts 1950-70, and trucks/parts 1950-79

The last half of 2019 prior covid i started to see some interest again but covid ended that. I still worked 7-days a week and eventually traded a load of logs for a few amish heifers and a bull to start raising beef etc since the meat plants were going to shut down, "or so the media said" . Around March i unplugged the TV and radio. I had had enough of the constant flip-flopping and contradictions. Aside of an M813 going to a very good home (thank you Wreckclues) , sales of parts, tractors, and heavy equipment have been zero the last 5 years amid a smaller-than-usual amount of tire kickers

I predict scrap price is going to rise during the next few years for a number of global and domestic reasons.. I hope the reason won't be the value of the dollar sinking lower than it's current lowest value in all of history. It takes time to destroy that value, and takes time to restore that value. When there is fear, a layman's money is spent on only the essentials

I came to a realization a couple years ago.. I remember when surplus WW2 trucks/heavy equipment were still a big thing amongst contractors, businesses, and people.. But by the mid-70's , interest in it had waned severely. I'm sure the seniors at Southeastern, Memphis, Sam Winer, Allegheny, etc can attest to that. The items were only 30+ years old at the time and my generation looked at WW2 surplus as being "ancient." The 1951 truck I drove to high school was only 25 years old but certainly it wasn't "cool" amongst my classmates

Most of our collections today are primarily made up of trucks and equipment 50+ years old .. As good as the stuff still is, I have realized there's a parallel between the fall of the surplus WW2 MV market and the current fall of the Cold-War MV market. As my father once said, "Took ya long enuf" :rolleyes: .. I've probably realized it all along but am (finally) openly accepting that times have changed and so has what's in demand.

In the northeast, the next 6 years will show whether unrestored vintage collections move to new owners or move to the scrap heap. Now we're back full-circle. What is going to be the good deal and for whom? Time will tell (y)
 
Last edited:

Mullaney

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Charlotte NC
It may seem that way, but not a good deal for the sellers .. There's two reasons

1: Few people spend $ on MV's, old-school truck projects, and other hobbies during times of uncertainty
2: Decline of interest in pre-1985 MV's .. I had a fair construction/quarry/hobby client list until 2015

I noticed the heavy equip/truck/farm tractor market start its decline in late-2009 and continue to sink deeper into the latrine thru the 20-teens. I'm talking about heavy equipment/tractors/parts 1950-70, and trucks/parts 1950-79

The last half of 2019 prior covid i started to see some interest again but covid ended that. I still worked 7-days a week and eventually traded a load of logs for a few amish heifers and a bull to start raising beef etc since the meat plants were going to shut down, "or so the media said" . Around March i unplugged the TV and radio. I had had enough of the constant flip-flopping and contradictions. Aside of an M813 going to a very good home (thank you Wreckclues) , sales of parts, tractors, and heavy equipment have been zero the last 5 years amid a smaller-than-usual amount of tire kickers

I predict scrap price is going to rise during the next few years for a number of global and domestic reasons.. I hope the reason won't be the value of the dollar sinking lower than it's current lowest value in all of history. It takes time to destroy that value, and takes time to restore that value. When there is fear, a layman's money is spent on only the essentials

I came to a realization a couple years ago.. I remember when surplus WW2 trucks/heavy equipment were still a big thing amongst contractors, businesses, and people.. But by the mid-70's , interest in it had waned severely. I'm sure the seniors at Southeastern, Memphis, Sam Winer, Allegheny, etc can attest to that. The items were only 30+ years old at the time and my generation looked at them as being "ancient." The 1951 truck I drove to high school was only 25 years old but certainly wasn't "cool" amongst my classmates

Most of our collections today are primarily made up of trucks and equipment 50+ years old .. As good as the stuff still is, I have realized there's a parallel between the fall of the surplus 1940's MV market and the current fall of the 1950's-80's MV market. I too have become an "antique". As my father once said, "Took ya long enuf" :rolleyes:

In the northeast, the next 6 years will show whether unrestored vintage collections move to new owners or move to the scrap heap. Now we're back full-circle. Which is going to be the good deal and for whom? Time will tell (y)
.
Sad state of affairs...
 

rustystud

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Location
Woodinville, Washington
Thought I would share this great find.

001.JPG002.JPG003.JPG004.JPG006.JPG005.JPG

A brand new, still in the "cosmoline" oil cooler. This was the first time I opened it. Just needs cleaning and it's good to go.
It's really fun to find surprises like this still out there. Now if I only could score some NOS large wave springs and maybe some rubber seals for the large reduction piston. I know there out there somewhere !
 

msgjd

Well-known member
1,155
3,566
113
Location
upstate ny
Now if I only could score some NOS large wave springs and maybe some rubber seals for the large reduction piston. I know there out there somewhere !
i will try to reach the estate of a collector i mentioned .. i had his son's email here somewhere , it's been a few years.. Maybe by now he has an idea what's there for parts etc
 
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