Replacing corroded part

[ccm14]

Hello,
I have a 2006 Yamaha F150 that has developed some corrosion in the lower unit area. I have attached a pic of the corrosion since it is somewhat hard for me to describe where it is at.

My intentions were to sand down the corroded areas then prime and paint, but when I got into the job it appears most of the corrosion is located on the ring nut (PN 6G5-45384-00-00) which appears removable. If I can remove this part it will be a lot easier for me to remove the corrosion and I could also see if there is any hidden corrosion behind the washer.

What I want to know is if there is anything special I need to know about the removal and replacement of this part. I'm sure there is a special tool for its removal but I will be going the shade tree route so I would appreciate advise on how best to remove the part.

I would assume I should put some marine grease on the threads when re-installing. Right?

Thanks in advance to anyone who can offer some advice.

Charlie

 

[99yam40]

Re: Replacing corroded part

Buy a new one and drill and cut the ring nut to remove if you can not get it to move

 

[robert graham]

Re: Replacing corroded part

If you're not having any problems with the lower unit, gears, prop shaft,leaking seals, etc., then just leave it alone and run it...you can always deal with the corrosion and ring nut removal later, If and When you develop problems. Mean time, scrub the area with a wire brush to remove most of the corrosion and spray it with white lithium grease to help protect it from the water. Good Luck!