Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 09-01-2020, 15:55   #1
Registered User
 
tbodine88's Avatar

Join Date: Mar 2012
Location: Austin TX
Boat: Nimble Artic 26
Posts: 951
Images: 6
Nissan/Tohatsu M3.5A (3 hp) removing Prop problem

I have two friends. Each have motors that look similar. They seem to both be Tohatsu M3.5A outboards. One is branded Mercury and is pretty new, about 2005. The other is a Nissan older perhaps 1998.

They both had leaking gas tanks which I replaced. They both started and ran, but would not drive the boat. They both have plastic props.

I worked on the Mercury first. I pulled the cotter pin holding the prop, and I spun the prop right off. The shear pin was sheared and buried in the plastic internally. I replaced the shear pin, put the prop right back on. The motor started, ran and drove the 14 foot boat along at a good clip.


On the Nissan, I can't seem to get the prop off. I pulled the cotter pin, but when I spin the prop it doesn't seem to unscrew, but just spins on the shaft. Any ideas on how I can get it off with out cutting it off?

Thanks for your help. Regards Captain Tom
__________________
Frimi Captain
Tom Bodine
tbodine88 is offline   Reply With Quote
Old 09-01-2020, 16:36   #2
Registered User

Join Date: Oct 2010
Location: The boat - New Bern, NC, USA; Us - Kingsport, TN, USA
Boat: 1988 Pacific Seacraft 34
Posts: 1,454
Re: Nissan/Tohatsu M3.5A (3 hp) removing Prop problem

The prop on my Tohatsu 3.5B simply slides off the shaft after the cotter pin is removed. There is no threaded attachment; it just pulls off the shaft leaving the shear pin in its hole in the shaft. At least, that is my memory.

Bill
wsmurdoch is offline   Reply With Quote
Old 10-01-2020, 03:38   #3
Registered User
 
tbodine88's Avatar

Join Date: Mar 2012
Location: Austin TX
Boat: Nimble Artic 26
Posts: 951
Images: 6
Re: Nissan/Tohatsu M3.5A (3 hp) removing Prop problem

Else where some one said "Prop puller" Question is how to use one here is the prop:


simply pulling by hand hasn't been effective, but I may be a weakling
__________________
Frimi Captain
Tom Bodine
tbodine88 is offline   Reply With Quote
Old 10-01-2020, 05:00   #4
Registered User
 
dwedeking2's Avatar

Join Date: May 2014
Location: Key West, FL
Boat: Morgan Out Island 415
Posts: 911
Images: 1
Re: Nissan/Tohatsu M3.5A (3 hp) removing Prop problem

On mine I have to use a flat headed screw driver to pry the prop down the shaft to get it started. Once it's down 1/4" it slides right off.
__________________
S/V Pomaika'i Blog
dwedeking2 is offline   Reply With Quote
Old 10-01-2020, 12:56   #5
Registered User

Join Date: Sep 2009
Location: Boca Grande, FL
Boat: Catalina 36
Posts: 66
Re: Nissan/Tohatsu M3.5A (3 hp) removing Prop problem

On my Tohatsu 3.5A the plastic prop slides off the shaft (once the cotter pin is removed )and no threads are involved. New props are for that engine are available from Amazon for <$20.00
Catboat Willy is offline   Reply With Quote
Old 12-01-2020, 06:36   #6
Registered User
 
tbodine88's Avatar

Join Date: Mar 2012
Location: Austin TX
Boat: Nimble Artic 26
Posts: 951
Images: 6
Re: Nissan/Tohatsu M3.5A (3 hp) removing Prop problem [solved]

Fixed it ! Placed the lower unit in a vise. Then Banged on the prop smartly with a hammer. came off as stated by cat boat willy.

It appears part of the prop was jamming it. I'll probably get new prop as well.

__________________
Frimi Captain
Tom Bodine
tbodine88 is offline   Reply With Quote
Reply

Tags
nissan

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Want To Buy: Nissan/tohatsu JusDreaming Classifieds Archive 0 23-08-2010 12:15
Vibration from a 1 cylinder Tohatsu/Nissan/Mercury 6 HP 4-stroke? CSY Man Auxiliary Equipment & Dinghy 5 02-10-2007 17:37
Nissan/Tohatsu 4 stroke Outboard? exposure General Sailing Forum 7 19-07-2005 17:15

Advertise Here


All times are GMT -7. The time now is 00:10.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.