noisy 116 only @1000rpm in fwd

[prusuit 2560]

i just put boat in water and i have about 6 hours on drive and it makes a whine like the old drive had but only in foward at 900 to 1300 rpm . it goes away at dead idle or over 1300rpm and as soon as you shift into neutral.?i am gonna just wait until break in is over! otherwise everything went smooth from 3 day shipping to installing unit!:D

[Tech Support]

Our drives are a little noisy until you complete the break in as we do not lap our gears. We allow the gears to lap themselves as a set during break in.

Tech Support

[prusuit 2560]

i know about the breakin noise its not that its a high pitch noise that goes away when the drive doesent have a load on it like between waves! i put the final 10th hour on drive today it is quiet shifts excelent i cant say anything bad but the noise is driving me crazy could it be a u joint noise ? the only thing i did was change drive and shift cable.it only makes noise around 1000 rpm +-200rpm. i am gonna have it hauled and change lube should i pull drive and check u joints ? ill be back out of the water for winter by mid december.

[Tech Support]

U-joint noise is generally a knocking sound so I don't think that is the problem. If your gimbal bearing is old you can check it to make sure that is not the source of the noise.

Tech Support

[prusuit 2560]

i was a carrer marine mechanic i sepeialized in merc inboards .i just installed drive and the gimbal bearing is fine . i have never heard this type of noise so i assume its from the drive because thats the only thing i changed . i have a month beore i haul out again so i will let you know if i find something then thanks for the input.

[Island]

Just curious -- did you solve this this spring?

[prusuit 2560]

i have same boat and i have over 30 hours on drive noise will go away around 20 hours i found . drive works great just cant seem to get shift cable right .

[prusuit 2560]

island wy u up so early?

[Island]

Paying for parts, and trying to make some time during the day to work on the boat!

[prusuit 2560]

i hear ya island .. the pump was sucking air ? still dont know where from but it works now not gonna gorry any more

[mike456]

noisy 116

I also just purchased a new drive and have about 3 hours on it. I have noticed that when I throttle down quickly and the boat comes out out of plane I hear what sounds like a low pitched whistel sound that last for a second o2 2. It is very noticeable and concerning to me. Is the normal and will it go away once it is broken in?

[admin]

It should quiet down after the break in period. If not give us a call.

Tech Support