|
Tractor Talk Discussion Board |
Re: M Farmall Engine rotates only half way
[ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Gary-Miss on April 27, 2003 at 11:50:30 from (152.163.188.71):
In Reply to: M Farmall Engine rotates only half way posted by Scott Glick on April 27, 2003 at 11:21:18:
Does the crank turn almost a full revolution before it stops. Can you then turn it almost a full revolution backwards before it stops? This is usually an interference between the top of the piston and the head. It could be something as simple as a piston unit turned 180 degrees. If it turns more than one turn, but less than two, it is usually an interference with the valve train. It could be something on the cam gear (The cam rotates at half crank speed) It may be the cam is out of time with the crank. A quick check on this is to pull the valve cover, @ 1 and 4 piston come to the top at the same time. Same for 2 and 3. One piston will be coming up on compression, the other will be coming up on exhaust. At exactly the top, the piston coming up on exhaust will have the exhaust closing and the intake openning. We call this being "on the rock". You can rock the crank back and forth and the valves will begin their movement. Let us know what you find, We all learn something new every day.
Follow Ups:
Home
| Forums
| Order Support
Today's Featured Article -
Tractor Implements and Their Use - by Curtis Von Fange. Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he reached his early sixties
... [Read Article]
Latest Ad:
For sale Farmall super A tractor is complete and has just been setting for awhile,it was running when pulled out of the barn,shouldn’t take to much to get it going asking 1100.00
[More Ads]
Copyright © 1997-2026 Yesterday's Tractor Co.
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. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|
