No Acceleration

[LOOKIN4ALIFEPLAN]

I took my 1999 Rinker 242 (5.0L w/Alpha I outdrive) out for one last joy ride the other day and all seemed well up to about 2500 RPM. As I was accelerating to get up on plane suddenly it was like the drive disengaged. The engine RPM's raced up but there was no forward motion. I shifted to netural let the engine RPM's drop then shifted back in gear at slow speed 5 - 7 knots all was well.

I repeated the process a second time with the same results. So instead of having to be towed in I proceeded to the dock at slow speed.

Any ideas what might be wrong?

 

[Bondo]

Re: No Acceleration

Ayuh,....

My Guess is,..
You either Blew the Prop,..
Or,..
You Blew the Coupler...

If you're Lucky,.. It's the Prop...

 

[krisnowicki]

Re: No Acceleration

did the engine over heat and or did you smell burnt rubber?

 

[chiefalen]

Re: No Acceleration

You beat me to it Kris.

May i explain: If you blew the coupler than you have no water going to the motor, cause the impeller is not turning, thus the overheating.

If no over heating than the prop spun and the impeller is still turning.

So it is critical that we know about the over heating or not.

I just spun a prop.

Scares the hell outta ya huh?

Now another way to tell if you can see the shaft turn when you turn the prop in gear.

Then it's a coupler went.

If you haul on the prop try to turn it and it won't in gear still won't be definitive.

Cause it may take a hellof alot of haulin to see.

So did it overheat?

 

[LOOKIN4ALIFEPLAN]

Re: No Acceleration

There was no indication of over heating - at least by the gage.

 

[Bondo]

Re: No Acceleration

Ayuh,...

Put a spare Prop on it,+ Try it.....

 

[Don S]

Re: No Acceleration

A coupler can go bad 2 different ways.
1. When the metal splines strip out causing the input shaft of the drive to not turn at anytime. This would cause an overheat.
2. When the rubber breaks free of the coupler. At low speeds the shaft will turn, that's why you can go 5 mph. but under heavier load it spinns due to the load and causes the smell of burned rubber. When this happens, the shaft in the drive is still turning the raw water pump and you will not get an overheat (at slow speeds). This is also what happens with a prop, but being in the water it stays cool and you can't smell it.

 

[LOOKIN4ALIFEPLAN]

Re: No Acceleration

My checking account and I thank you. It was the prop.