Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 11-06-2017, 08:52   #1
Registered User

Join Date: Nov 2013
Location: Perth, Australia
Boat: Lagoon 450 Flybridge
Posts: 93
Yanmar SD60 Clutch issue

I have a 2015 Lagoon 450 with Yanmar 54 engines on SD60 drives.

Engine hours about 970.

The starboard engine handling is quite erratic. It appears as if the clutch is not properly engaging at first. On adding revs, there is a bit of a clunk, before it engages, then it drives OK. It appears to be worse in astern.

I have checked the cable measurements as per Yanmar manual (35mm) and they are OK. When is neutral there is a small amount of movement (a couple of degrees) on the starboard drive shaft attached to fore/aft gear cable, no play on the port drive.

Any ideas? Is this adjustable? If so, how?

If it requires a replacement of the clutch mechanism, can that be done in the water (there is a far amount of room in the engine compartment)? Any idea of costs?
__________________

__________________
___________________________________
Anthony s/v SPRING - Lagoon 450 for sale
https://springlagoon.wordpress.com/
anthonyp0808 is offline   Reply With Quote
Old 28-11-2017, 13:31   #2
Registered User

Join Date: Jul 2016
Posts: 19
Re: Yanmar SD60 Clutch issue

was hoping someone would reply to this. I too have the same issue and did the same checks, that all checked out ok. I'm guessing to start, change fluid and see how it goes. Anyone else?
__________________

__________________
Houston450 is offline   Reply With Quote
Old 28-11-2017, 14:55   #3
Registered User

Join Date: Nov 2013
Location: Perth, Australia
Boat: Lagoon 450 Flybridge
Posts: 93
Re: Yanmar SD60 Clutch issue

It is a design fault with the early SD60s. Apparently an undersides bearing.

Yanmah provided replacement parts (the complete clutch mechanism) for both drives even though warranty is limited to 500 hours. I paid for the labour to fit these.

Work can be done in the water, and cost in Turkey was €1200 plus vat for labour in Marmaris (I quouted €850 for labour in Bodrum but marina fees there are €240 per night for my cat)
__________________
anthonyp0808 is offline   Reply With Quote
Old 07-12-2017, 07:20   #4
Senior Cruiser
 
Captain Bill's Avatar

Cruisers Forum Supporter

Join Date: Apr 2008
Location: On the boat
Boat: Endeavourcat Sailcat 44
Posts: 2,313
Re: Yanmar SD60 Clutch issue

Yanmar replaced the transmission section of both my SD60s at 1200 hours in the US due to this known defect. My US warranty was 2 years and the failure happened at 2 years 1 month. The second drive had not yet failed but had a serial number in the range of units known to have the defect. They also paid for the haul and blocking. I got to pay yard fees and miscellaneous parts such as new seals which were not cheap.

The transmission sections were "re-manufactured". Apparently the fix is better done in a controlled environment by specialists in doing the repair. This was according to a former ZF employee that had been trained to do it in the field. ZF makes the SD60 drives and according to him it was a known problem in ZF drives 5 years ago. I suppose someone will be getting my old drives after they have been fixed.
__________________
Captain Bill is offline   Reply With Quote
Reply

Tags
clutch, yanmar

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
Volvo s130 Saildrive Issue - Clutch Slippage jglauds Propellers & Drive Systems 4 28-02-2017 14:24
Do not throw the YANMAR SD50 out for a SD60 yet!! Panache5000 Propellers & Drive Systems 8 30-09-2016 06:39
Yanmar 75hp with SD60 4JH - experiences? LouisAndNatasha Our Community 1 22-10-2015 02:07
Yanmar SD60 capbillh Engines and Propulsion Systems 6 21-07-2015 18:34
Yanmar sd60 propeller diagram bateaubonsai1 Propellers & Drive Systems 1 27-02-2015 22:17



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 12:27.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.