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 > Help- can't get the lower drive unit off of my yamaha 9.9 outboard
 Not a Member? 


Thread: Help- can't get the lower drive unit off of my yamaha 9.9 outboard 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)
12-25-2012 12:16 PM
gershel
Re: Help- can't get the lower drive unit off of my yamaha 9.9 outboard

Quote:
Originally Posted by Capt. Gary Randall View Post
Remove anode at front of lower unit, there should be a bolt that connects the lower gear housing to the upper housing. That is the way a lot of them are in my previous experience. CaptG
Not on the Yamaha 9.9 4-stroke.
12-24-2012 08:00 PM
Capt. Gary Randall
Re: Help- can't get the lower drive unit off of my yamaha 9.9 outboard

Remove anode at front of lower unit, there should be a bolt that connects the lower gear housing to the upper housing. That is the way a lot of them are in my previous experience. CaptG
12-24-2012 06:13 PM
gershel
Re: Help- can't get the lower drive unit off of my yamaha 9.9 outboard

This is the best advice.
Marc

PDQ Forum • View topic - T9.9 lower end removal questions
12-23-2012 01:09 PM
peterchech
Re: Help- can't get the lower drive unit off of my yamaha 9.9 outboard

Yeah the shift rod is bent had to be replaced. It is inside the shaft itself on the 9.9.

There doesn't appear to be anything holding the bottom drive unit onto the rest of the motor except for a ton of corrosion at the point of the seal. I thought about hammering a chisel into it all around slowly, but I'm concerned it will come off and be pitted and scratched, so sealing it in the future might be impossible.

Chuckles u were able to use wooden wedges? I don't have more than 1/32 " of space to get anything in that gap on my motor...
12-21-2012 07:15 PM
MarkSF
Re: Help- can't get the lower drive unit off of my yamaha 9.9 outboard

On my Yamaha 8, the shift rod is accessed from the outside of the o/b. If you place the outboard flat on a bench, with the prop downwards (so the throttle arm would be pointing straight up), you will be able to see the shift rod easily.

Note that there is also a small black plastic lever near to the shift attachment point, that is easy to break, this operates the reverse gear / tilt interlock.

On this diagram of the 9.9, it seems to be items 33 and 34 that attach the two halves of the shift rod :

1998 9.9MSHW Yamaha Outboard CONTROL Diagram and Parts

Put it down on the bench and see if you can see them.
12-21-2012 07:01 PM
KBuckley
Re: Help- can't get the lower drive unit off of my yamaha 9.9 outboard

There is a service manual available online (https://docs.google.com/file/d/0B6Bm...it?hl=en&pli=1) that shows the shift rod that needs to be disconnected but I do not see the access to the connection (at least in the few minutes I looked at the manual). Probably it will be obvious to you with the engine in front of you and the pictures in the manual.

Good luck.
12-21-2012 04:40 PM
dabnis
Re: Help- can't get the lower drive unit off of my yamaha 9.9 outboard

Done a number of impeller replacements. The hardest part for me was getting the water tube back into the powerhead. There was an O ring that kept falling out of the block. Finally put some sealer around the outside, let it dry a little then put it in the block. IIRC, on a smaller motor I just tipped it upside down in a corner. Much easier and could actually see what I was doing.

Paul T
12-21-2012 02:46 PM
chucklesR
Re: Help- can't get the lower drive unit off of my yamaha 9.9 outboard

Quote:
Originally Posted by dabnis View Post
There is a shift shaft that goes from the power head inside the lower unit to the gear case. There may be an acess cover to disconnect it somewhere on the lower unit.

Used Cars, Pets, Jobs, & Real Estate | Classifieds on recycler.com

Part # 35

Paul T
Oh yeah, that too. All the bolts and nuts.
12-21-2012 02:44 PM
dabnis
Re: Help- can't get the lower drive unit off of my yamaha 9.9 outboard

There is a shift shaft that goes from the power head inside the lower unit to the gear case. There may be an acess cover to disconnect it somewhere on the lower unit.

Used Cars, Pets, Jobs, & Real Estate | Classifieds on recycler.com

Part # 35

Paul T
12-21-2012 02:35 PM
chucklesR
Re: Help- can't get the lower drive unit off of my yamaha 9.9 outboard

Taking the lower unit of my outboard involved cutting the paint seal (box cutter), and even then I needed wooden wedges and a hammer.
Make sure you have all the bolts/nuts off - then tap around and round.
This thread has more than 10 replies. Click here to review the whole thread.

 
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 03:46 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.