yesterday in my 1987 25' ciera while coming home from put in bay i was having som difficulty getting up on plane so i had my 3 guests move up to the front of the cabin to disperse the weight as soon as we picked up speed all of a sudden the motor reved up and we were going no where. so i throttle back, put here in neutral and check to make sure we arent sinking or burning ( we arent). so i shift her back into forward and gently throttle up, and after it starts to get going it happens again, i can idle forward and go a little above idle but not much above so i decide to not tempt fate and bringher back at about 5 kts. i havent checked anything yet other than to make sure there is no water coming in because we had to get home but has anyone ever had something like this happen before? i did change the prop the prevous week with one i found in the boat and it drove a little slower but the new prop looked to be slightly smaller and looked to be a slightly sharper pitch.
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feels like slipping out of gear-gctid402287
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LakeLiner wrote:
i did change the prop the prevous week with one i found in the boat and it drove a little slower but the new prop looked to be slightly smaller and looked to be a slightly sharper pitch.
Mark the inner and outer prop hubs against one another, and try it again, see if the marks change position........ or, put the original prop back on.
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Rick E. (aka RicardoMarine) Gresham, Oregon
2850 Bounty Sedan Flybridge model
Twin 280 HP 5.7's w/ Closed Cooling
Volvo Penta DuoProp Drives
Kohler 4 CZ Gen Set
Please, no PMs. Ask your questions on forum.
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My vote is a spun hub. You can have it rehubbed if it's not aluminum. The rehub process will often break an aluminum prop. A reputable shop will tell you they are not responsible if it breaks.
Vic
Ft Myers
Vic Stewart SN
Past Commander
Cape Fear Power Squadron
Ft Myers Power Squadron
1998 2859 7.4 L/B2
Raw water cooled
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LakeLiner wrote:
yesterday in my 1987 25' ciera while coming home from put in bay i was having som difficulty getting up on plane so i had my 3 guests move up to the front of the cabin to disperse the weight as soon as we picked up speed all of a sudden the motor reved up and we were going no where. so i throttle back, put here in neutral and check to make sure we arent sinking or burning ( we arent). so i shift her back into forward and gently throttle up, and after it starts to get going it happens again, i can idle forward and go a little above idle but not much above so i decide to not tempt fate and bringher back at about 5 kts. i havent checked anything yet other than to make sure there is no water coming in because we had to get home but has anyone ever had something like this happen before? i did change the prop the prevous week with one i found in the boat and it drove a little slower but the new prop looked to be slightly smaller and looked to be a slightly sharper pitch.
When this happens, simply throwing it in reverse usually clears the crap off.
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definately try the old prop to see if it goes away, that is the cheapest and easiest solution, it could be a spun prop, a coupler or the gears going out in the outdrive, my bet a spun prop, cheapest solution spun prop, easiest thing to change spun prop, get my drift lol, change props even if you have to borrow 1
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gonna pull the prop later this week and see what the damage is, ill also put the old prop back on if i can
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Sounds like a spun prop. Certain props have a do it yourself hub. Real easy to do this style otherwise off to the prop shop.
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