I drained the fuel tank sump, decent. I drained the fuel filter bowl, water. I pulled the filter out, bottom cork gasket swelled up (water?). Cleaned it up and turned on the tank valve. Minutes later, no diesel at the top bleeder on the filter cap. I disconnected the fuel line at the tank valve and had a minute dribble. I rapped on the valve with a 3/4" wrench a few times and diesel flowed... Not good. Hooked the line back up and glow plugged the engine for about 2 minutes to make SURE it was hot. Fired off quick, but knocked a little. Let it idle about 5-8 minutes and wile knocking I eased the throttle up a little at a time. Lo and behold, after about 1/2 throttle it stopped. I progressed to WOT and no knock? Sharply went to idle and knocking began, back to WOT and smooth (some light missing, but been that way for years).
I got the tractor 3-4 years ago and it had a light miss under load. I used about 3x recommended doseage of (Diesel Kleen?) injector cleaner and cetane booster for several tanks. It ran like a top. I stopped using it about a year ago and have long since ran several tanks of hwy diesel thru it.
Once I got it back to the shop, I could see the exhaust smoke. It was grayish-black when it would miss and a lot of it. So missing only below 1/2 throttle and grayish-black... Could it be an injector not seating or stuck flooding a cylinder at part-throttle and using all the fuel at WOT?
I have been mowing (bush hog) a lot lately at about 1/2-3/4 throttle, not WOT. When I gap down on it after it is warmed up occasionaly I'll see some sparks come out of the exhaust. I have heard these engines like to be loaded and not babied around. I have provided a lot of easy, low RPM work on it. Could it be carbon build up and I need to dump some Diesel Kleen to it and run the Sh*t out of it?
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 - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
... [Read Article]
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.
