OMC turbojet 115 gear *banging*

[CrazyJ]

Hey guys,<br /><br />I just got a whaler rage 15 with an OMC turbojet 115 engine. At higher RPMs it seems to run fairly smooth, but around idle it sounds like it is going to explode!<br /><br />It sounds like the banging is coming from the gearbox. It is even bogging the engine down when it bangs and sometimes even cuts it off. I bought some OMC HPF gear oil today, but couldn't get the drain plug off to install it. I am determined to get it done tomorrow! What suggestions do you guys have for when I change the gear oil? Can I flush with water? Is the banging normal? should I give up now and buy new gearing?<br /><br />Thanks in advance!

 

[seahorse5]

Re: OMC turbojet 115 gear *banging*

If you are running it out of water just using the flusher fitting, yes, those straight cut gears are very noisy. In the water at the 1000-1200 rpm idle, there should be very little noise.

 

[CrazyJ]

Re: OMC turbojet 115 gear *banging*

I meant to flush the actual gear oil chamber with water, just to rinse out any gunk or chips. I am guessing this is not recommended?

 

[kd6nem]

Re: OMC turbojet 115 gear *banging*

Nope! The only thing that unit should ever see is the appropriate lubricant. Certainly never water!