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Rebuilding engine - what is this?
Hi fellow cubbys,
I am fairly new here. Bought a 1641 a few weeks ago that needed an overhaul. On idle, the engine didn't appear to smoke, but full throttle - it smoked bad. Plus, it didn't have enough power to pull the mower deck. So I bit the bullet and started tearing it down. Engine is cleaned up and on the work bench - the valves are carbon up bad from all the oil burning - so I took the heads to a shop to have a valve job done. I opened the crankcase and found this:::: Lying loose in the bottom of the crankcase. Where could it have come from? Actual size - about 1 inch long X 1/8 inch thick. The cylinder walls look new - perfect condition. The only possible damage I can find likely caused by this spring being in the crankcase is one rod end has a score on it where it bolted to the crank. The crank has very minor discoloration from this rod, but can't feel anything rough... It appears to be okay. I ordered a new rod with pistons, rings, and gaskets. Back to the foreign object. Does anyone recognize this spring as being part of a 1641's Briggs Vanguard engine? Is it supposed to be connected to something in the crankcase? I can't find where it would have been... How could it have gotten in there? Thanks for your help. Fred |
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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.
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