H260 engine

[Dave O.]

I have a H260 with 2001 honda 9.9. I have tried everything I can think of (noise reduction kit for engine cowl) and I cannot get the noise to a low enough level at high power settings. Has anyone ever tried putting a honda 15 or 20 on the boat and limited the throttle movement (I have engine controls on the binnicle) to limit the HP to 10 to comply with the limitation on the engine bracket. By limiting the engine rpm to 50% I was wondering if it might work to keep the noise down.

Thanks
Dave

 

[Landlocked Todd]

I would be concerned about the additional weight a larger engine puts on the bracket. There have been issues with cracking on the supports for that bracket. I've got an 8 HP Nissan 2-stroke and it is very noisy.

 

[shanker]

I have a Honda 9.9 2009 and its seems very quiet to me. No issues at all with excessive noise. Same set up with the engine controls on the binnacle.

Shanker

 

[shanker]

Mine is a four stroke...is yours a two stroke? That could be he difference.

Shanker

 

[BrianW]

My 2003 4-stroke Honda 9.9 on my H26 is very quiet. Easy to carry on a conversation at 3/4 throttle. BrianW

 

[twodzusfittings]

I think Dave O's engine is a 2 stroke. I have the same issue on a 2004 Evenrude

 

[Dave O.]

I do have a Honda 4 stroke and the noise level is too much if going on a extedned trip (2-4hours) with throttle settings at or above 3/4 throttle.

Thanks
Dave O.

 

[kloudie1]

Dave, ya might try a propeller with more pitch to slow the engine down a little ..
The Hondas and Yamahas are known for their quiet running.. surprised that yours is that noisy..

 

[Crazy Dave Condon]

The transom and motor mount when designed were for a max hp of 10 hp. Anything higher in horsepower will not help the boat as the larger engines are too heavy possibly damaging the transom and bracket, too high of horsepower again which will lead to damage if at full rpm and finally the boat will be plowing going no faster than with a 10 hp.

There is not much of information to advise nor has the engine been seen by a mechanic. Suggest if four stroke to check the oil pump, change to different oil and use of higher octane for starters to see if that helps. If you can find straight gas, that would help too.

 

[Dave O.]

Here are my thoughts on why I might want to swithch to a 20hp honda. I currently love my 9.9hp honda except when I am at 3/4 throttle or above. If I have a power setting of 3/4 throttle or above the engine is too noisy if motoring somewhere that is some distance away (1+hour) in my opinion.

Please point out anything I am missing.

1. The honda 20hp motor is within 10lbl of the 9.9 motor and the 20hp honda is still lighter than other 9.9hp 4 stroke engines in its class
2. I can limit the honda 20hp motor to roughly 1/2 throttle to match my 9.9hp at full throttle (this can be done by limiting the throttle throw on the binacle. Currently my 9.9hp hits the pedistal guard in front of the pedistal at full throttle and I can move the position ot the throttle to hit it at roughly half throttle. I can match the hp of the 20hp motor to a 9.9hp at full throttle by increasing the throttle of the 20hp motor until I reach the boat speed my 9.9 throttle reaches at full throttle and that should be equil power outputs and therefore somewhat equil fuel flows)

Are there any holes in my theory?

Dave O.

 

[Crazy Dave Condon]

Yes. YOu may be capable but others will not and in some cases in extreme emergencies you will do the same. That added horsepower will not do anything for you and it goes against the recommended safe hp rating on the transom and bracket.
I have seen others do this and repaired several Hunter 26 and 260's. By the way, I use to sail quite a bit with both boats in Tidewater particualarly out of Willoboughy Spit so I know the area well.

Please listen to common sense. There is nothing more to say.

Dave Condon

 

[Quoddy]

Less noise

Quiet is relative, but I hear you about motor noise.

We put wooden doors on the port and starboard aft cockpit pass-through’s. They are the same height as the rail. This was done to make the cockpit a little more secure. They cut the motor noise a surprising amount.

Another thing to consider is an auto pilot. Then you can sit where you want. When you move forward in the cockpit the motor noise really drops. Auto pilot has lots of other uses too.