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Old 06-17-2016, 12:03 PM
suburban man suburban man is offline
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Join Date: Apr 2010
Location: Ohio
Posts: 14
Default Cub 100 slow crank.....ACR?

I was given a nice Cub 100.....I have several others (wife and kids snicker), Its all original with fenders and what I was told a replacement short block some years ago.....I think a 1964 ....I had it running a couple years ago....real hard cranking and would stall as soon as I loaded it. Well I finally got back to it and cranking is awful even with additional jump battery....I went thru all the normal diagnosis battery...cables....starter...etc.....adjusted valves....timing....finally decided i dont see a bump on exhaust valve as I roll it over.....so I lifted the engine and took cam cover off. I see a hole in exhaust cam lobe...with nothing in it.....and I see a couple weights flopping around on front of cam...a very small wire that may be a spring end on a weight...looks to thin though. Question...How do weights on the front of cam gear actuate the exhaust valve which is behind? Internally thru that hole? and what can be done to correct this? pull motor and replace acr? Cam? does anyone have pictures? I just want this nice old Cub to be able to mow again...
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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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