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 > Can't drop gear case to change impeller on Tohatsu 6HP
 Not a Member? 


Thread: Can't drop gear case to change impeller on Tohatsu 6HP 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)
04-23-2013 10:53 AM
dabnis
Re: Can't drop gear case to change impeller on Tohatsu 6HP

I kind of got lost in your description of the linkage. If all you did was to disconnect the coupling, I would think just re-coupling it with the original marks would do it? However, if you took the drive shaft out of the gear casing, that may be another story? Pictures?

Paul T
04-23-2013 08:41 AM
capecodda
Re: Can't drop gear case to change impeller on Tohatsu 6HP

When it comes to fixing stuff like this, trial and error has always worked for me....mostly

Good going!
04-22-2013 08:58 PM
dabnis
Re: Can't drop gear case to change impeller on Tohatsu 6HP

Quote:
Originally Posted by gallilaw View Post
Problem solved (I think). I took the lower rig apart once more to make sure that the cam rod was turned in the correct direction. I pressed it down to seat it in the reverse position.

After wiggling the drive shaft and cam rod into position, I tightened the lower unit to the shaft housing. The gears were still messed up. I used a big handle from a socket wrench to put force on the end of the cam rod that exits the shaft housing at the upper end, near the engine. Plunk. It dropped another inch. That seated the cam shaft one notch lower, to the true reverse position. At that point I tightened the cam rod clamp and all the gears were working again.

I hope it works as well when I turn the power on, some time tomorrow.
I see, I think When you get it on the boat, suggest you put the power to it very easily and slowly. If it stutters or jumps out of gear more adjustment may be necessary.

Paul T
04-22-2013 08:19 PM
gallilaw
Re: Can't drop gear case to change impeller on Tohatsu 6HP

Problem solved (I think). I took the lower rig apart once more to make sure that the cam rod was turned in the correct direction. I pressed it down to seat it in the reverse position.

After wiggling the drive shaft and cam rod into position, I tightened the lower unit to the shaft housing. The gears were still messed up. I used a big handle from a socket wrench to put force on the end of the cam rod that exits the shaft housing at the upper end, near the engine. Plunk. It dropped another inch. That seated the cam shaft one notch lower, to the true reverse position. At that point I tightened the cam rod clamp and all the gears were working again.

I hope it works as well when I turn the power on, some time tomorrow.
04-22-2013 01:10 PM
dabnis
Re: Can't drop gear case to change impeller on Tohatsu 6HP

Quote:
Originally Posted by gallilaw View Post
Finally got it apart. It took an unbelievable amount of force. I actually snapped a pry bar. Used a heavier pry bar, applied more force than I want to remember, and the drive shaft finally released. Put in a whole pump repair kit, not just the impeller.

After all the time and effort getting it apart, I forgot to care about the gear sync when I put it back together. Now all the parts are assembled and I don't know what direction the clutch cam is pointing, what gear it's in currently, or whether the cam rod and the shift rod are properly set up at the shift rod joint.
Oh, dear!!, if you took the drive shaft out of the gear box you may have a problem. My experience was with OMC motors, so have no hands on experience with the Tohatsu. You might try gripping the shift rod and push it as far down as it will go. Then pull the engine over to see which way the prop turns. Then adjust the shift lever accordingly.

Paul T
04-22-2013 07:32 AM
capecodda
Re: Can't drop gear case to change impeller on Tohatsu 6HP

If it's like other small outboards I've worked on, you can mess with the shift rod adjustment till you get it right. Disconnect the spark plugs so you're sure it won't start, then try different shift rod adjustments. When it's in gear forward and reverse, you shouldn't be able to easily turn the prop by hand (cause of engine compression). When in neutral, it should spin freely. You probably are close to the right setting if you get neutral in the middle setting, and the prop doesn't easily turn in forward and reverse. Once you've got it adjusted as above, then put it in the water and fire it up and see if it works in all 3 positions. If you hear it slipping or not fully engaging, try again....

Not sure this is the best way but it's worked for me. Good luck!
04-22-2013 01:23 AM
gallilaw
Re: Can't drop gear case to change impeller on Tohatsu 6HP

Finally got it apart. It took an unbelievable amount of force. I actually snapped a pry bar. Used a heavier pry bar, applied more force than I want to remember, and the drive shaft finally released. Put in a whole pump repair kit, not just the impeller.

After all the time and effort getting it apart, I forgot to care about the gear sync when I put it back together. Now all the parts are assembled and I don't know what direction the clutch cam is pointing, what gear it's in currently, or whether the cam rod and the shift rod are properly set up at the shift rod joint.
04-21-2013 03:55 PM
dabnis
Re: Can't drop gear case to change impeller on Tohatsu 6HP

Quote:
Originally Posted by macwester26 View Post
Is there an anode ? if so removing the bolt may help you Some outboard engines have the anode bolted on the bottom of the shaft...and this also holds the shaft in...
Good point!! Yes, there is one on the housing just above the cavitation plate, I think. I guess the best approach may be to remove anything you can get your hands on. I would, however, leave the driveshaft in the gear box housing. Not sure if things would fall in to themselves if you take it out, but wouldn't want to find out the hard way.

Paul T
04-21-2013 01:16 PM
macwester26
Re: Can't drop gear case to change impeller on Tohatsu 6HP

Quote:
Originally Posted by dabnis View Post
On mine, the only bolts I can see are bolts 53 & 55. There is a member by the name of pvann---? who is a Tohatsu rep. He may be able to help you, or maybe your local dealer could tell you what the trick is?

Paul T
Is there an anode ? if so removing the bolt may help you Some outboard engines have the anode bolted on the bottom of the shaft...and this also holds the shaft in...
04-20-2013 07:11 PM
dabnis
Re: Can't drop gear case to change impeller on Tohatsu 6HP

Quote:
Originally Posted by dabnis View Post
Try this one, I have the same motor, standard shaft, I will see if I can find any "hidden" bolts.

2011 MFS6C Tohatsu Outboard GEAR CASE, DRIVE SHAFT & GEAR CASE, PROPELLER SHAFT Diagram and Parts

Paul T
On mine, the only bolts I can see are bolts 53 & 55. There is a member by the name of pvann---? who is a Tohatsu rep. He may be able to help you, or maybe your local dealer could tell you what the trick is?

Paul T
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 02:00 AM.

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.