another project

Just acquired this tractor and curious of
this engine configuration. was this just an
early modification.
IMG_20160423_103713_zpsxvgoyyin.jpg
 
It has hydraulic valve lifters. In a ZT or JT chassis, looks like to me. Probably a transplant from a power unit or military surplus. The only thing I don't recognize is the air cleaner mount.
 
Early Z had air cleaners on the left side, moved to the right sometime around 1939 give or take, I don't know the exact serial number when they changed, but a very neat find congratulations.
 
The manifold has a crack on the other side but I think
I will try to weld it. I have the engine out of the tractor now
and will know more about the engine when I disassemble it. I don't think this has hydraulic
valve lifters. I believe the covers were just a port to adjust the valves
I will take more pictures later and post.
 
That looks to be the same style of engine that was used in the military units. I believe they used hydraulic ones. This is a replica of a prototype model NT MM agricultural tractor. It has the same style configuration as yours. What ever you have it is unique.
a225620.jpg
 
Could we see some pictures of the front and rear end? You just might have some type of a prototype.
MMDEL
 
This would be the only picture I have. Since I'm in the process of
dismantling the tractor and evaluate where I should proceed. The tractor is stuck
and at this point I don't know how bad.
e3f58575-7348-476a-91c5-f3495701eab8_zps9pwworq1.jpg
 
Del is right.That's an OE engine after the war some were put as stationary. The one I got was a stationary that I put into the NT. Would like to see some pictures of the tag and more of the tractor. If you are overhauling the engine make sure you put pistons in the valve boxes back into the same bore they came out of. They are machined to that specific bore. I have a pictures of that engine in two experimentals. Keep us posted Roger . Thanks Jeff
 
Thank you for posting those pictures. I think I might have talked to you and your dad at the Montevideo MN show a few years back when you had the tractor there. Very nice work.
 
Looks like 1937-39 fenders. Narrow front Im guessing from the steering shaft. Any pictures of the rear end? Neat to say the least.
 
If tractor is pre 1940 it will have brass tags. Should have dual gas tank,double barred steering wheel,breather on left side and hood to match. Part number on valve cover doesn't show up in any books. Still waiting on NTX parts list for OEA.
 
I have one of these engines. It was a sawmill power unit in Michigan. It does not have "OE" on the tag. It's a 1945 2064A model. I always assumed it was leftover "Jeep" parts assembled into a power unit after the war. I also have an MM engineer's journal full of pictures from the development of the OE engine and the low cost R, NT and Jeep.
 
My engine tag does not say OE on it. It is an aluminum tag on the engine and a brass tag on the tractor. The serial number for the tractor is 564609 which makes it a 1938. I was hoping for a 1936 model. I will respond with more pictures when I get further along with the restoration process.
c3c53608-8147-429d-9eaf-e61cc9d15edd_zpssrhebvel.jpg
 
Interesting that it is a 5" stroke. If I remember correctly the regular ZT engines were 4 1/2". They must have been 5" for the military engines. Im guessing the the 206 "AA" must be the first series.
 
I was surprised of that also. I'm anxious to look into the engine to understand more of this
model. I will have to go back into some of my MM Corresponder. There was a special issue wrote
about this engine.
 
All Z motors were 186 ci until 206 came out in 48. Stationary motors with the hydraulic lifter set up were used for improved reliability. The old rocker setup required more maintenance as they were prone to go out of adjustmnet.
 
Engine has been replaced in your 1938 Z. That 2064A is from 1945.The serial number on my 2064A with the hydraulic valves is 210558.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top