Engine problems

[flamed94xp]

2009 Challenger 230se 510hp
Took the boat out for a 2 hour ride today. Stopped for some lunch in the lake. After down for an hour or so started the engines up. Once we have it some throttle the right engine is like free spooling. RPM jump to 7000 once throttle is hit.
Any ideas.

 

[MacSeaDoo]

First check the position of your reverse bucket. If they are in the intended position, I would lean to flywheel bolts.

If it is your flywheel bolts, I would stop running it as they can do more damage.

 

[flamed94xp]

I should have mentioned, the boat would be normal at 2500rpm doing 8-10MPH, that when the issue occurred of hitting the throttle and it reving high.

 

[flamed94xp]

Just found out that a piece of wood was sucked up into the prop and cracked the wear ring.

 

[Joe Starbuck]

Just found out that a piece of wood was sucked up into the prop and cracked the wear ring.

Does anyone have a theory as to why FOD and a cracked wear ring would cause the engine to rev high?

 

[DooGuy]

Cavitation. It’ll act like a car with a slipping clutch, power up and the Rpms go up quickly with little movement.

 

[Mister Magoo]

Does anyone have a theory as to why FOD and a cracked wear ring would cause the engine to rev high?

The first couple of times this happens to you and you have to remove the pump to get to the object you'll come up with a theory. Seeing is believing.

 

[Joe Starbuck]

Cavitation. It’ll act like a car with a slipping clutch, power up and the Rpms go up quickly with little movement.

Makes sense, thanks!

 

[MDH19]

On the water now with exactly the same problem. Port engine revs hi with no propulsion. Can’t go over 10mph. any suggestions?

 

[ski-d00]

Start a new thread and then remove the debris from your pump

 

[flamed94xp]

On the water now with exactly the same problem. Port engine revs hi with no propulsion. Can’t go over 10mph. any suggestions?

Get the wear rings checked.