L/u grind?

[jacobpourciau]

So I was running my engine on muffs and with the prop spinning in forward hear I accidently attempted to shift it in reverse and heard a loud grind. Could I have cause any internal damage? I killed the engine and shifted it in reverse and forward and everything seemed smooth and fine engine is a 250 Yamaha hpdi

 

[robert graham]

Re: L/u grind?

Probably just the clutch dogs grinding some....it's doubtful there's any damage....if you've got to shift gears out of the water, then let prop stop spinning before shifting...

 

[Boss Hawg]

Re: L/u grind?

Probably just the clutch dogs grinding some....it's doubtful there's any damage....if you've got to shift gears out of the water, then let prop stop spinning before shifting...

Agree- also shift (always) quickly & firmly- OB's don't like to be "eased" into gear---

 

[Home Cookin']

Re: L/u grind?

Although shifting from forward directly to reverse is bad, OB's can take it b/xc it happens all the time. Your one-time won't do anything. Don't make a habit.
People who use reverse as a brake often don't realize that even in neutral, when a boat's moving forward the prop is spinning.

And although you didn't ask, don't rev a motor on the muffs, or in neutral. And if you must get some RPM's it's safe to do it with the throttle and not by putting it in gear.