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jfkunal

TD-9 engine/crankshaft - Need part numbers

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Hello to all,

My dad owns this old TD-9 which no one has much information about. The engine number is TDCB 35847141A and I was given one more number TDCBM 26880. The tractor is not at the same location as me, so not able to confirm any details. Had following questions -

  1. Which year is the tractor from?
  2. What engine would it take? Looks like there might be 2 or 3 different kinds
  3. What crankshaft would it take? - Was told there is a crack or slipped bearing (again not sure)
  4. Head has a hairline crack

I have the options below -

  1. Buy a crankshaft - I might get access to a 50977DAIH and 275606R crankshaft. Would either work?
  2. Buy a complete new engine for a rebuild - Would a WD-9 engine work? I would rather work offline and get it ready before I tearout the old one
  3. Buy just the head - I may get access to a 8101DG cylinder. Would it work?

Thank you very much in advance.

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I have been wondering it there was any demand for those kind of parts. I have two TD9s that are going for scrap and I was wondering what to keep.

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I have been wondering it there was any demand for those kind of parts. I have two TD9s that are going for scrap and I was wondering what to keep.

What does that mean? For the engine parts? Yes, there is demand. Are you the guy parting the WD-9s on Austin, MN CL?

The first number was a part number. You can tell from the R1

1 - Probably around a 47, but it is really tough to guess for a 9 series. There were a lot of gas tractors and stuff that threw off the count. There should be a casting code behind/near the injection pump that will have a date. It will be like 5*23*R

2 - It should take all three engines, maybe more. It WILL take a WD, WDR, or TD engine.

3 - Don't know for sure, but it will be from one of those machines. They did change a few things from early to late tractor and not everything is interchangeable. ie late vs early heads and late vs early rods

4 - Heads can be repaired or good heads can be found.

1 - IDK

2 - Parts engines are out there. I bought a parts engine to complete my project. Who says your parts engine will have a good head?

3 - You can buy a head, but they usually cost more especially when they are pressure checked and confirmed good. What is an 8101DG cyl?

I have a crank and a head. Might be a while before you can have them. I want to get my engine through the machine shop before I start selling extra parts.

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Scott. Thanks for the information. I have a quote to get the head repaired. I will be on the lookout for a part engine which might be better as a complete overhaul could be done rather than the bits and pieces I was planning to do. If it does not work, I would be interested in the crank and head you have.

The 8101DG is casting on one of the heads I got a lead on. Tried to upload the picture but no luck. What is IDK? (a supplier?)

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IDK = I Don't Know. Its texting lingo. :)

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I have not tried to sell any parts off of my machines.

I have two TD9 loaders that I got about 20 years ago thinking that I would have enough pieces to put one together. Both are pretty well used up and both have final drive problems. The '56 model had the splines worn out on a final drive gear that I welded to the shaft and drove it around a little bit. When the drive had failed it was hauled back to the owners shop and then the shop burned down before it was repaired. The engine in the other one (51) sat outside with no cover on the exhaust so water got in and broke the block.

With the price of scrap up to about what this units would bring if running I have decides just to get rid of them. I just have to decide what I may want to keep and what to scrap.

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Obviously heads, pumps and injectors are worth more as parts than scrap. Truthfully the pistons are worth it too but they are a lot more work to get at then the rest of the parts. If they are honest 350 ci/4.5" sleeves they are worth it as well. The no covered exhaust one is probably a lost cause for engine parts.

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Gentlmen,

I picked up this lot of used TD-9 / WD-9 parts from a tractor auction.

I bought 3 cranks and a bunch of other parts like pistons, push rods (8), pulleys, clutch connecting rods and possibly some piston pins

I just need 1 crank (50977 DAIH) and maybe another 50978 DA. The 3rd crankshaft # 275606R is not required. It is the one with the gear in the middle. Hate to throw it in scrap. Anyone need it for free? Would have to pick it up. I am throwing out some other of the above things too. Please email me or PM. I would like someone to use it rather than end up in a melt furnance. Would need to go this week. Its in Cleveland, OH. I can try and skid it up, but cannot promise.

Which model would the 50978 DA crankshaft fit? I have a 1946 TD-9.

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What I need to know is on the WD-9 or TD-p engines does the ring gear fit flush with the front (engine side) of the flywheel or is it back approx 5/8 in. I cannot get the starter to engage and the bendix seems to be throwing or all the way.

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What I need to know is on the WD-9 or TD-p engines does the ring gear fit flush with the front (engine side) of the flywheel or is it back approx 5/8 in. I cannot get the starter to engage and the bendix seems to be throwing or all the way.

Flush.

2012-02-04_16-32-13_992.jpg

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Sorry Scott but when I look at your picture it looks like the ring gear is back about 1/2 in. from the front of the flywheel. The starter seems to work ok on the bench and the bendix throws all the way out when the motor is energized. I wonder if the starter could have a problem that will not allow it to turn the engine even if the bendix is engaged? The starter motors when installed just doesn't seem to engage the ring gear.

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There is a lip there that won't let it go any further to the front.

I'm no starter expert. Are you sure your ring gear and bendix are good? Does it grind or not engage at all?

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Got it fixed!!!!!! Put on a different starter after measuring and determining that the bendix should and did engage the ring gear. There must be something wrong with old starter that slips and will not turn the engine even though the starter motor turns. I don't know how the starter drive looks inside. From the outside without taking them apart the starters look the same.

Thanks for your replys and help!

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Good deal. Now you better send the bad one out to get rebuilt. It is always good to have a spare!

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