Posted by Fixerupper on March 10, 2012 at 17:53:08 from (199.120.105.202):
Helped my friend try to figure out why an old military vehicle won't go into 2-3 and 4-5 gears. It's an old WW2 tracked landing craft that you can drive a jeep into the back of and is powered by a 7 cylinder Continental radial engine. It hasn't been driven for 15 years and the previous owner didn't mention any tranny troubles but????
Granny and reverse are in a separate case behind the transmission case and they do shift and work. 2-3&4-5 are inside the tranny case and we can't get them to shift into gear. The gear shift lever just won't move.In this tranny the top shaft is the input and bottom is output. There are two syncronizers on the bottom shaft, according to the parts book. One for for 2-3 and the other one is for 4-5. The shift lever is on the outside of the tranny and the three shifting rods come out of the end of the tranny about 5" and that is where the shift lever engages them. The rods for those two gear selections move freely just a bit and then they act like they hit something hard. I even tapped on the end of one with a hammer while trying to shift it in with the shift lever and it feels like it hits something rock hard. We have the drive shaft off between the engine and tranny and can turn the tranny with the nut inside the input yoke with a socket. If we try to move the shift lever into a gear the input shaft starts turning hard so evidently the syncros are moving just enough to make a little friction, but they won't engage beyond that. Like I said, when moving the shift lever it feels like the shift fork hits something rock hard. I don't know much about syncros, but can they sieze up and prevent the collar from engaging the gear? I have no idea what the make and model is. It's old, it's military and it's not a common gearbox, that's all I know about it.
The engine is not running but he has a spare engine that will be going in. Jim
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. [ About Us ]
Today's Featured Article - Show Coverage: Central Illinois Strawberry Festival - by Cindy Ladage and Janna Seiz. Every year the coming of summer is highlighted by different events for different people. For some, it is heralded with the end of school, tilling the garden, or completion of the planting season. To us, connoisseurs of find food, antique tractors, farm toys, crafts, and downright fun, the annual Strawberry Festival means summer is here. Every year, in Carlinville, Illinois, the Macoupin County Historical Society and the Macoupin Agricultural Antique Association team up to fill th
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
