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Old 02-03-2010, 07:12 PM
metalrain metalrain is offline
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Join Date: Jul 2009
Location: North Dakota
Posts: 149
Default 682 compression

I need to pull motor (kt17 series II) on my 682 to replace the rear seal along with some gaskets and such. It does smoke alittle on startup, but nothing while running. I ran a compression test, both cylinders are at 95psi....The manual states compression under 90 indicates a problem, but doesn't mention what the compression should be on a healthy engine. Is 95 psi borderline? No idea how many hours on this engine, but it does start and run well? Anything else i should be checking?
Thanks

Metalrain
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Old 02-03-2010, 08:22 PM
Matt G.'s Avatar
Matt G. Matt G. is offline
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Default

If they are both at 95 psi, I'd say you're fine. If there was a difference between the two, then you might have reason to worry. A new engine probably has 120 psi of compression. A little smoke on startup is normal on
the boxer twins.
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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.

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