Posted by wayne in mn on May 06, 2014 at 11:07:25 from (66.188.174.211):
In Reply to: Starting my 300U posted by Danby on May 05, 2014 at 22:10:45:
First, accurately locate TDC for #1 cylinder on compression stroke, the points should JUST BEGIN to open at that point. If not, follow the procedure below to set spark timing. Use an ohmmeter with a low reading setting and attach one lead to the points wire going into the distributor body and the other meter wire to the metal side of the distributor body. (I prefer to remove the cap, rotor, & protective cover over the points so I can see what is going on) Replace the rotor temporarily for reference purposes. Loosen the distributor hold-down capscrews so you can just rotate the distributor body. Rotate the distributor body CCW (looking from the operator seated position) until the points rubbing block is on the cam lobe highest part. Point gap is .020”. Adjust as needed. Rotate the distributor body clockwise until the ohmmeter shows that the points are closed. If you cannot get a 0 or nearly 0 reading then clean the contacts with a very fine abrasive and spray some contact cleaner or brake cleaner (no carb cleaner, it leaves residue) and snap the movable point arm with your finger verifying a good, clean connection. You may need to remove the points and clean underneath them. The meter should read infinity with the points open. Since you previously found TDC #1 cylinder now slowly rotate the distributor body slowly CCW until the meter just begins to indicate the points are opening. Tighten the hold-down capscrews, replace the points cover & rotor, distributor cap (the rotor should point to #1 tower in the cap), verify the firing order (1-3-2-4 in the CW direction), and you should be good to go. IF the cap is not cracked, IF the rotor is not carbon tracked, IF the wires are in good condition, IF the sparkplugs are good, all should be well. I like to remove the coil-to-cap wire at the cap and use a jump gap tester to make sure there is decent spark. (1/4” bright blue and snappy). Happy “sparking”.
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 - Tractor Profile: Allis-Chalmers Model G - by Staff. The first Allis-Chalmers Model G was produced in 1948 in Gasden, Alabama, and was designed for vegetable gardeners, small farms and landscape businesses. It is a small compact tractor that came with a complete line of implements especially tailored for its unique design. It featured a rear-mounted Continental N62 four-cylinder engine with a 2-3/8 x 3-1/2 inch bore and stroke. The rear-mounted engine provided traction for the rear wheels while at the same time gave the tractor operator a gre
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[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.
