|
PLEASE PATRONIZE OUR SPONSORS!
|
|||||||
|
|
Thread Tools | Display Modes |
|
#1
04-22-2026, 09:37 AM
|
|||
|
|||
K321 Points shooting out sparks
I'm working on a 1979 1450 with the K321 engine.
The engine seems to run fine most of the time but occasionally, It sounds like it's under a load. The engine sounds changes and the governor arm opens the throttle and the engine stumbles, then recovers. I removed the points cover and was adjusting the ignition timing when I noticed each time the engine stumbles, the spark at the points gets very bright and sparks shoot out from the points contacts. The points are fairly new Kohler OEM and I checked the coil and condensor with a multimeter and they test ok. I removed the wire from the coil to the points and checked it for chaffing or short but it was ok. Replaced the coil wire, tried a different condensor and a different spark plug but no change. I also used a points file to clean up the contacts. I also removed the push rod for the points and saw that one end was slighty rounded at the tip. The tip on the other end looked perfect. To rule out anything with the hydraulics, I removed the drive shaft and no change. It does have the original PTO attached to the front of the crank but it is electically disconnected and the belt removed. When its running good, the spark across the points contacts is very small. If you have any idea what would cause this, I'm all ears! 
|
| Tags |
| k321, points, spark |
|
|
Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.
MTD Products, Inc. of Cleveland, Ohio purchased the Cub Cadet brand from International Harvester in 1981. Cub Cadet was held as a wholly owned subsidiary for many years following this acquisition, which allowed them to operate independently. Recently, MTD has taken a more aggressive role and integrated Cub Cadet into its other lines of power equipment.
This website and forum are not affiliated with or sponsored by MTD Products Inc, which owns the CUB CADET trademarks. It is not an official MTD Products Inc, website, and MTD Products Inc, is not responsible for any of its content. The official MTD Products Inc, website can be found at: http://www.mtdproducts.com. The information and opinions expressed on this website are the responsibility of the website's owner and/or it's members, and do not represent the opinions of MTD Products Inc. IH, INTERNATIONAL HARVESTER are registered trademark of CNH America LLC
All material, images, and graphics from this site are the property of www.onlycubcadets.net. Any unauthorized use, reproductions, or duplications are prohibited unless solely expressed in writing.
Cub Cadet, Cub, Cadet, IH, MTD, Parts, Tractors, Tractor, International Harvester, Lawn, Garden, Lawn Mower, Kohler, garden tractor equipment, lawn garden tractors, antique garden tractors, garden tractor, PTO, parts, online, Original, 70, 71, 72, 73, 76, SO76, 80, 81, 86, 100, 102, 104, 105, 106, 107, 108,109, 122, 123, 124, 125, 126, 127, 128, 129, 147, 149, 169, 182, 282, 382, 482, 580, 582, 582 Special, 680, 682, 782, 782D, 784, 800, 805, 882, 982, 984, 986, 1000, 1015, 1100, 1105, 1110, 1200, 1250, 1282, 1450, 1512, 1604, 1605, 1606, 1610, 1615, 1620, 1650, 1710, 1711, 1712, 1806, 1810, 1811, 1812, 1912, 1914.
Threaded Mode