wistle then grind noise at 2K RPM Yam 115

[Ken]

Eric,
Sure sounds like you have one of those drive shaft bushings I was talking about in a previous post. Seems logical that when you sprayed lubricant on the drive shaft it ran down to the suspect bushing.
Drop that lower unit and take a look - if it has been at least three years since last water pump repair, you need to do it anyway. Take a look at the drive shaft to see if there is any wear pattern on it from the water pump housing to the shaft splines. If you find a drive shaft bushing, you are probably gonna need to replace it.
Good luck [img]smile.gif[/img] ,
Ken K

[snuggtopz]

common problem, i have it on my Mercury 2006 115
it is either the rubber seal on the bottom of the drive shaft
or the bush at the top of the driveshaft.

the oil pump is just under the crankshaft cover
does it sound like it is coming from the oil pump ?

take the leg off and grease the shaft at the splines and replace the seal at the
bottom, while at it you may as well put a new impeller in.

it will take you less than an hour.

Rich