SailNet Community - Reply to Topic

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > how do I remove the impellor housing from a yamaha 9.9? it won't come out...
 Not a Member? 


Thread: how do I remove the impellor housing from a yamaha 9.9? it won't come out... Reply to Thread
Title:
  

By choosing to post the reply below you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Topic Review (Newest First)
01-29-2013 03:24 PM
dabnis
Re: how do I remove the impellor housing from a yamaha 9.9? it won't come out...

Quote:
Originally Posted by peterchech View Post
Yeah I'm concerned about opening up that gear box. The whole lower unit must have been left in the water at some point by the PO so there's corrosion everywhere, and I can't even get the prop shaft out because the seal between the lower unit and the metal retainin part is completely corroded. I might be able to bang it off eventually, but prob not without breaking the aluminum and then having to order new parts, again.

Can o'worms for sure...

I really only need to replace the seal, I wonder if there is some way of cutting it, wrapping it around the shaft then somehow gluing it back together therefore not having to get this stupid thing off in the first place?

Maybe I just need to buy the shop manual, which costs more than all the parts I ordered for this motor together unfortunately...
"Seal" or "gasket"? If the gasket, maybe clean the surfaces as best as you can and use Permatex orange silicone based gasket sealer, put lots of it on
and just barely snug it down. Then after a day or two, re-torque to specs. I would be reluctant to pull the shaft out of the gearbox unless you have nothing to lose.

Paul T
01-29-2013 02:40 PM
peterchech
Re: how do I remove the impellor housing from a yamaha 9.9? it won't come out...

Yeah I'm concerned about opening up that gear box. The whole lower unit must have been left in the water at some point by the PO so there's corrosion everywhere, and I can't even get the prop shaft out because the seal between the lower unit and the metal retainin part is completely corroded. I might be able to bang it off eventually, but prob not without breaking the aluminum and then having to order new parts, again.

Can o'worms for sure...

I really only need to replace the seal, I wonder if there is some way of cutting it, wrapping it around the shaft then somehow gluing it back together therefore not having to get this stupid thing off in the first place?

Maybe I just need to buy the shop manual, which costs more than all the parts I ordered for this motor together unfortunately...
01-28-2013 08:20 PM
tommays
Re: how do I remove the impellor housing from a yamaha 9.9? it won't come out...

Does the manual call it that ?



This is more or less a typical water pump other than some are plastic



On a mercury the black thing is the seal holder and it slips right out as its rubber

Your kind of digging into gearbox now and need to proceed with a bit more guidance from a manual as part #17 is holding some important stuff in place so it is easy to get in trouble about right now

For example on a Gen II lower you pull the shift shaft right out BUT IF you do it on a GEN I (older style) you have to tear down the entire lower-unit to fix that mistake
01-28-2013 08:06 PM
dabnis
Re: how do I remove the impellor housing from a yamaha 9.9? it won't come out...

Looks like maybe there is just enough corrosian on the shaft to not let the housing slip over it? You might try dressing down the shaft? If you pull the shaft out of the gear housing you might have trouble getting it re-aligned? Last resort, maybe?

Paul T
01-28-2013 06:57 PM
peterchech
how do I remove the impellor housing from a yamaha 9.9? it won't come out...

I'm trying to change the gasket between the impellor housing and the lower unit. I also would like to change the seals on the actual drive shaft, where they meet the impellor housing.

As you can see from the pics, I can lift the impellor housing up about 1/4" before it stops and can't go further. It can spin freely on the axis of the drive shaft, however it appears that the drive shaft is what is blocking it from actually coming off. Do I need to remove the driveshaft to get the housing off? If so, how do I remove it, and how do I get the seals off the driveshaft where it meets the housing?

Thx for any help!








 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


All times are GMT -4. The time now is 07:46 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.