Posted by Blue_Tractor_Man on November 05, 2018 at 19:08:07 from (174.236.134.57):
I'm getting an old Kohler generator running after it had set up for 20 plus years. There is no visible wear on the cylinders, no ridge, grooves, scratches or anything. It has cast iron pistons. The intake valves and cast iron seats look to be in extremely good condition. However, the exhaust valves that ride on hardened inserts have a wear ring on them where they contact the seat. The hardened seats look rounded a little, but otherwise good. The exhaust valves have rotators, but the intake valves do not. One exhaust valve looks like it was cut by exhaust gasses. This is a low compression 1800 RPM engine. What might be the explanation for what seems to be a strange wear pattern? I do not think it has been run since unleaded gas became common. I plan on getting new exhaust valves and buying a valve seat cutter to refresh the valve seats. I have never done that before, but I am buying a kit, have been watching Youtube videos, and have a factory service manual. Thanks for any advice.
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
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 - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
... [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.
