Jim, I can't find a parts blow-up online for a W4, but if it's like the same function on the H, the lockout is simply a 3/8" bolt. It should be easy to spot. It's smaller than those around the edge that hold the transmission cover down. On the H, it was just forward and a little to the left of the shifter and passes straight down through the cover.
Its function was very simply to block the forward motion of the shifter rail. To enable 5th, a 3/8" NC bolt 3/4" long was used as a simple plug for the hole. To block fifth, a longer bolt of the same thread was used (the parts listing unfortunately doesn't say how long!), that protruded far enough down to physically block the shifter rail and fork from sliding the fifth gear into mesh. Elegantly simple.
Trick is, if the W4 was the same rig, there's not much to go wrong with it or break. I suppose if it originally had the longer bolt in it and someone backed it out enough to free up the 5th gear but left it in place, just backed out some, that it could over time vibrate back down to where it was blocking things. See if you can find it and pull it all the way out. If it's only 3/4" long, it's not your problem, put it right back, all the way in. If it's an inch long or more replace it with one 3/4" long and see if it will shift. If you still can't shift into fifth, you've got wear or other issues with your shifter.
(N.B. As I said, this if for an H. There may be enough difference in the geometry between an H and a W4 that the correct length for the NON-blocking bolt is other than 3/4". If you've got a parts book, or someone here does and can look it up for you, it'll be listed and illustrated with the transmission and gears.)
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 - Tractor Profile: Farmall M - by Staff. H so that mountable implements were interchaneable. The Farmall M was most popular with large-acreage row-crop farmers. It was powered by either a high-compression gas engine or a distillate version with lower compression. Options included the Lift-All hydraulic system, a belt pulley, PTO, rubber tires, starter, lights and a swinging drawbar. It could be ordered in the high-crop, wide-front or tricycle configurations. The high-crop version was called a Model MV.
... [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.
