Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 19-09-2014, 01:08   #1
Registered User

Join Date: Apr 2014
Location: California
Boat: Lagoon 500 2013
Posts: 34
Replacing SD 50 Gear Set

It appears that the upper gear set in my SD50 Yanmar Sail drive was not shimmed properly by Yanmar. The drive has 650 hours on it and started making a terrible grinding sound and was quickly disabled and we returned to Georgetown in the Bahamas under one engine.
Upon inspection it appears that the upper gears are not meshing correctly, engaging only at the ends and now slipping and grinding past each other. It appears that they are not shimmed enough to provide full contact between the gears.
Does anyone have experience with this problem? Can the gears be replaced without having to take the boat out of the water? If so how is this done? Does it require dismounting and moving the engine forward to gain access to the drive shaft to remove the worn gear or is ther some other way to accomplish this task.
Any help or guidance will be appreciated.
matauri500 is offline   Reply With Quote
Old 21-09-2014, 13:06   #2
Registered User
NoTies's Avatar

Join Date: Nov 2005
Location: Vanuatu
Boat: Whiting 29' extended "Nightcap"
Posts: 1,336
Images: 2
Re: Replacing SD 50 Gear Set

Yes, it's possible but not adviseable, you are going to have an awful lot of metal in your oil that will need to be flushed out which can only be done properly on the hard.

Positively, socially deviant.
NoTies is offline   Reply With Quote


Thread Tools
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
Captain Tred Barta Fishing gear for Sale...... my personal gear. Capt. Tred Bart Commercial Posts 0 20-03-2012 11:36
Set Adrift Stede The Sailor's Confessional 8 29-11-2007 13:31
Stereo set up Rippy Marine Electronics 5 23-02-2006 05:01
Lightweight Anchor Set - from Brian Sheehan (Fortress Anchors) GordMay General Sailing Forum 2 14-12-2004 16:43

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 11:33.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.