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Old 14 May 2006, 09:48   #1
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Odd tube on 40 mariner

Anyone got any idea if this tube would affect performance at all and what it was originally intended for?

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Old 14 May 2006, 10:02   #2
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Helps keep the boat clean and tidy
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Old 14 May 2006, 10:20   #3
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Thats a weird looking pipe! Exhaust pipe maybe? Did you have a look inside it or smell it (for water/exhuast etc)
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Old 14 May 2006, 10:22   #4
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It's an exhaust pipe-the motor is ex military. What I want to know is why have it and does it affect performance?
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Old 14 May 2006, 12:10   #5
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Doubt it will affect performace. It looks like a fairly big pipe - certainly no smaller than the exhast outlet on the prop. As long as theres decent airflow through it it should be fine.
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Old 14 May 2006, 12:47   #6
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Yeah, but will having the exhaust not exiting near the prop affect holeshot?
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Old 14 May 2006, 12:59   #7
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I woulndt think so. A lot of engines dont have through-prop axhuasts anyway.

And if it didnt work the militery wouldnt have used it like that........
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Old 14 May 2006, 13:04   #8
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It looks very clean is it a bargain?
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Old 14 May 2006, 15:14   #9
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Might be... I'm tempted by it. VERY low hours-less than 50.
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Old 14 May 2006, 16:40   #10
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Does anyone know the purpose?

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