You are going to have to take the injectors to a diesel repair shop or just exchange them for a rebuilt set.
Those tiny washers are shims to adjust the opening pressure of the nozzle. There is a very good possibility that the nozzle that came unscrewed also broke the two little spiral pins that keep the nozzle tip aligned with the body. It is also critical that the mating surfaces on the nozzle tip, spacers, and injector body be in perfect condition. Any imperfections will allow fuel leakage so that pressure is not maintained between injection strokes. That will result in uneven fuel delivery between injectors.
In the "Well, it's too late now" department, you should always drain the coolant to below the cylinder head whenever removing injectors from a 400 series engine. It is true for the German built engines as well. These engines have brass nozzle sleeves pressed into the heads that have coolant around the outside. When the injectors become stuck in the head it is possible to cause these sleeves to move before getting the nozzle out. When that happens you are likely to have a coolant leak into the combustion chamber.
After replacing the filters, use the hand pump on the back of the injection pump to prime them to get the air out. When you can get a good steam out of the second filter, without any air bubbles, close the bleed screw and give the pump about another hundred strokes. That will ensure fuel in the pump and in the return lines.
To bleed the injectors, connect the lines to all the injectors but leave the nut loose about a turn or so. Open the throttle to at least half way and crank the engine until you see a good spurt from around each line as that injector receives fuel. It will not necessarily spray out but you should see the fuel come up around the line above the nut. Continue to crank until you no longer get any air bubbles out with the fuel and then tighten the fuel line nuts. Do not crank for more than 30 seconds at a time and wait at least two minutes between cranking to allow the starter to cool.
If the high pressure head in the pump is getting worn out you may not be able to generate enough pressure to crack open the injectors while cranking. If you do not get smoke while cranking this is a good possibility. If the head is weak, putting in reconditioned injectors will most likely make starting problems worse. As injectors are used the opening pressure drops off and part of the reconditioning process is to restore them to the correct opening pressure. A weak head will not be able to open the injectors and you will have no fuel flow through them and no smoke at cranking.
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: Godfrey, Illinois Country Days - by Cindy Ladage. Except for last fourth of July's Old Gold show in Springfield, Illinois, I don't remember when it was so hot. Nevertheless, the heat didn't keep vendors and visitors alike from enjoying the third annual Country Day's Event. Jane Elliott said the event was originally a one man show. "Barry Seiler, owner of Country Town Farm Supply store used to invite people up to the Johne Deere store. He would give hats and a free meal for everyone that brings a tractor." Elliott said while this
... [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.
