muffed motor

[omceed]

I recently went out for a spin with someone that has owned a lot more boats than I have. When it was time to flush the motor(salt water) out he was in the boat and I was putting the muff on the foot. After all clear, to my surprise he raced the motor in neutral, forward and reverse.<br />I have always heard that you should not go over or much over idle with a muff on.<br />Thanks for your feedback.

 

[OBJ]

Re: muffed motor

Really shouldn't go over 2k rpm. Idling up to 1500 and letting the engine run on fresh water for a while would seem a better way to go. Racing the engine in forward and reverse does nothing cept put undo wear on the engine.

 

[walleyehed]

Re: muffed motor

Might be a good reason he's owned "Many" boats......

 

[WillyBWright]

Re: muffed motor

Good one walleyehed. What's with the shifting thing??? Has absolutely nothing to do with flushing. Just taking a chance of snagging the hose and slicing and dicing it. Sounds like a bystander injury just waiting to happen.

 

[Cricket Too]

Re: muffed motor

I have always wondred about this. I have always just assumed that racing and engine in gear with no load on it can hurt something in the lower unit but never really knew for sure. Can it?

 

[rodbolt]

Re: muffed motor

hello <br /> I dont worry so much about the gear case but high speed no load can ruin the needles on the wrist pins and rod bearing surfaces. it will look like a wash board. let him rev his but not yours and all will be well.<br /> good luck and keep posting

 

[45_red]

Re: muffed motor

Isn't there also danger of a runaway on some motors if you rev them in a no-load situation?

 

[Cricket Too]

Re: muffed motor

What is a runaway exactly? I'm assuming it is not good.

 

[rickdb1boat]

Re: muffed motor

Runaway is something no one want to experience. When you rev the motor too high the plugs are hot enough without a load that they keep on firing, even though you kill the ignition. It's call momentum firing. Not good, as it may continue to gain RPM's(runaway) and is nearly impossible to shut down. Choking is usually the only alterative to flood it with fuel. Damage can occur quickly if allow to run on. Never go above 2000K when testing in a tank of muffs or you're asking for disaster..

 

[crazy charlie]

Re: muffed motor

there really is no reason to ever run a motor higher than idle.Nothing is accomplished by the extra rpms,only the possibility of problems.Charlie