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Old 02-22-2024, 10:47 AM
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joe_db joe_db is offline
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alternator tensioning device

One type sold by our host has a spring, the other type looks like the one my old Toyota uses has a barrel nut that adds tension.
Anyone have either one or insight into which one works better?
Joe Della Barba
C&C 35 MK I
Maryland USA
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Old 02-22-2024, 11:07 AM
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hanleyclifford hanleyclifford is offline
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I have been using the one sold by Moyer Marine for years (also known as the "Dutton Device") with excellent results.
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Old 02-23-2024, 10:27 AM
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After several years of experience with mine, an unexpected benefit was it alerted me to belt wear. I replaced the belt and the squeal stopped instantly. In the pre-tensioner days I could have (would have?) masked the wear with greater belt tension. That strategy is on a path to more wear, the possibility of alternator/accessory drive bearing damage and belt breakage.
1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
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The Following 4 Users Say Thank You to ndutton For This Useful Post:
hanleyclifford (02-23-2024), sastanley (02-26-2024), thatch (02-23-2024), W2ET (02-23-2024)

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