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Discussion Starter · #1 ·
was out today and brought the boat up to 20 knots no issues no worries, slowed to troll for the day and on the way back in was back up to 21 knots, but all of the sudden lost all kinds of power couldnt get it above 12 knots, no matter how much throttle. after about 20 mins. it felt like it "grabbed a gear finally" and started to speed up. this only lasted a couple seconds then it dropped back down to 12 knots. engine sounds and behaved perfect. could this be an out drive issue. i just repowered with a new engine...could the outdrive not be liking its new friend? been out for the last serval weeks with great performance..felt the power thing just a bit when i came into the harbor last week but thought it was an anomally. well i guess not... can anyone help me here?
thanks
tony
 

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If it was a spun prop wouldn't it be over revving and not getting any speed? I spun a prop a few boats back when I had outboard power and the boat would do 5 knots but if I pushed the throttle pas about 1400 it would over-rev and the boat would actually slow. He didn't mention anything about over-revving. I would say outdrive issue if engine sounds right and all gauges read normal.

JMHO and 2 cents,

Ohfishal (Matt)
 

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Discussion Starter · #6 ·
it did over rev. that is a great way to explain yet another thing that happened. i have someone looking at the prop this week (since my boat is so far from me) and i explained what had happened, he thinks it a spun prop too. i just put a new engine (350 chevy) new carb (edelbrock marine), re built the drive line of the outdrive, however i never took the lower unit apart to look at that... i have never looked at or replaecd the prop though. it could be a good 10 years or so old...i was looking at an extra prop i have up here at the house and i can see how the shaft and hub could end up spinning. so i hope that is what it is and it doesnt cost that much.
thanks for the input
tony
 
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