Posted by pete 23 on December 29, 2013 at 16:15:59 from (74.33.91.156):
In Reply to: 560d high rpm miss posted by tbish on December 29, 2013 at 10:10:49:
I can't hear your tractor run from here but the first thing I would suggest is make sure the load advance is advancing the timing like it is supposed to. You need a timing window on it to check. It should advance two marks on the window at all no load speeds and retard one at half load, and two at full load. I know you can't watch it unless you have it on a dyno but there are other ways of getting a good idea if it is working correct or not. With window on, engine running low idle I adjust for the full two mark movement. Then I open throttle wide open very quickly and watch the cam for movement. It should retard about one mark. This is a simple and very very often overlooked adjustment on those load advance pumps. Many a pump has been taken off for repairs and more often injection nozzles when all that is wrong is the advance need adjustment. Some people even advance the static timing and that makes the engine sound right but that is totally the wrong way to do it as you want it to retard under load on that engine. The adjustment is on the governor spring guide screw. Directly above the head of pump, on rear side of the top part of housing. Has a lock nut on it . You can just turn it in a half turn or so even without a window to see if that makes it hit properly at full throttle. The guide screws is tapered an the metering valve is constantly rotating against it so it wears a flat spot on guide. A slight turn and you are on a new spot.
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 - A Brief History of Tractors in Australia - by Bob Kavanagh. After Captain Cook's exploration of the east coast in 1770 the British Government decided to establish a penal colony in Australia. The first fleet arrived in 1788 and consisted mainly of convicts who were poorly equipped and new little of farming techniques. The colony remained far from self-supporting and it was not until the early 1800's that things started to improve. Free settlers started to arrive, they followed the explorers across the mountains and where land was suitable set up farms. T
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[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.