Anyone have any experience with or own one of these old girls or an MD? Mainly the injection pump set up. I have recently acquired one a 1948 and don't know much about them I've got a couple letter series already but just gassers. I have run an MD but never had to wrench on one
My understanding is that the pumps are mega-bucks to rebuild/repair and replacements are like finding snow flakes in Puerto Rico. Wish I had more practical experience to offer but all I've got is a couple hundred hours of seat time on an MD.
Kind of the same situation I'm in and the thing that worries me is the fact that the oil filler neck/ plug for the injection pump is missing and it's been an open hole for a llllooonnnggg time. Only benefit is it's inside
I own several letter series farmalls myself but no diesels so I don't have first hand experience. I think that those tractors could have either I Bosch pump or an IH pump. Rebuilt pumps used to run in the neighborhood of a grand. Two sites I use for info on tractors are yesterday's tractors and red power magazine. We used to farm with a mdta but my pap pulled the original motor and replaced it with a 4-53 Detroit it was a runner but the ta couldn't handle the power. Sure wish I had that tractor now in original condition. Hopefully yours being inside keep the pump from being damaged.
I've got a couple letter series myself and that is a pretty neat swap with a Detroit, got to love that sound! I've been doing some reading online poking around and it's an IH pump for sure and I'm thinking the "newer" B series. The thing that worries me is I hand cranked her about half a turn yesterday to see if it was free and could hear what sounded like walnut shells cracking in the pump! Hoping it's just dry with no oil so I'm just preparing myself to pull it and send it out for rebuild first thing
Yeah it sounded good for sure used to pull a 3 bottom plow in 4th gear. That sound in the pump can't be a good thing. Dump some diesel or transmission fluid in it to soak them try again. I think you're probably on the right track figuring that you'll have to pull it.
Unfortunately think your right.... Three bottom in 4th is hoofin' on an ol' M althoughI've freight trained my gas M pulling a 10' JD disk with my 12' drag on the back of that in 4th a time or too
That's getting it done too. Of course hitting one of the limestone ledges in the upper 40 made things interesting.
Brought her home today snapped a pic before we tarped it cause it was starting to snow pretty good. Got to do some shuffling to get her in the shop
Straight is right! And all original the only dent I see is on the top of the one fender almost looks like someone whipped an apple at it otherwise even the slats in the front grill are perfect and on an old IH that's never the case
Most of the old tractor brakes didn't work for long I don't think there hasn't been many I've got on that worked real well
So far I've found.... -starting carb cracked in pieces -a few coffee cans worth of walnuts down the exhaust manifold into the head - diesel in the oil of the injector pump - throttle lever cracked -#3 and #4 starting valves stuck - hole in radiator (not sure if it leaks or not) - intake stack pipe half cut through from the hood -broken seat spring All in all not to bad I don't think. I've got a new carb already and all the gaskets coming to get the head back together. Hopefully with some cleaning I can get the starting valves unstuck and working.
It's been quite a while since I've touched a wrench to it but today, with a little encouragement from yesterday's tractor show I did some work on her mainly to get the head off my bench. Back in the early spring I hunted down a new carb, gasket set and a few other odds and ends. I ended up stripping the valve train, cleaning the head as well as fixing the two stuck starting valves. This tractor has a pretty unique starting system it incorporates both gas and diesel. Starts on gas and switches to diesel after it's warmed up. Cleaned up the top of the block, bottom of the head, new head gasket and set her down. All torqued 125 ft/lb. and hooked up the injector lines. Took the tappet covers off to make sure I got any of the crud out of the tappets before I dropped in the push rods and ran out of time for today.