Drive Train Squeal - SailNet Community
LinkBack Thread Tools
post #1 of 2 Old 07-15-2013 Thread Starter
Senior Member
Join Date: Sep 2012
Location: Bremerton, Washington
Posts: 250
Thanks: 21
Thanked 1 Time in 1 Post
Rep Power: 8
Drive Train Squeal

I feel like I've been posting too many "what should I do about this?" threads lately, but the feedback has been valuable.

Anyway, when I bought my boat last fall (1981 Spirit 28, Yanmar 2QM15 engine, PSS shaft seal, three blade prop), I noticed that when sailing above about 4 knots, with the transmission in neutral, I could hear a faint squeal (almost sounded like wind whistling over the backstay, but noise went away when transmission was placed into gear, so I knew it was related to shaft rotation). I didn't think much of it, since there was no sound under power, and I could make it stop by putting to the transmission in gear.

But lately, I've noticed that I can hear the same or similar noise under power (in forward gear), as well as under sail (in neutral). The sound is fairly faint -- in fact, it's almost drowned out by the engine noise.

Sound to me like a bearing, but I don't know the exact source. My next plan is to crawl into the engine compartment while underway and have a good listen.

I'm pretty sure it's got the Kanzaki-Hurth transmission. If the noise is coming from there, what are my options?

Any other suggestions?
Rusty123 is offline  
Sponsored Links
post #2 of 2 Old 07-15-2013
Senior Member
Philzy3985's Avatar
Join Date: Oct 2012
Location: Redondo Beach
Posts: 208
Thanks: 1
Thanked 8 Times in 8 Posts
Rep Power: 8
Re: Drive Train Squeal

It could be transmission, it could be engine, it could be just a vibration noise of something rubbing in a rhythm.
I have the same thing in fwd gear only, sounds like crickets chirping but only at certain higher RPMs which makes me think "It's just a weird vibration not the transmission" but I'm probably wrong.

Good luck, please fill us in on what you find.

1985 Catalina 30 Std Rig "A Cenoura"
Philzy3985 is offline  

Quick Reply

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Drive Train Maintenance PorFin Gear & Maintenance 19 05-07-2012 03:16 PM
How many drive train spares? Jim H Cruising & Liveaboard Forum 8 11-02-2008 11:03 AM
Engine/Drive Train Noise dinkum1 Atomic 4 1 11-29-2006 12:52 AM
Engine/Drive Train Noise dinkum1 Bristol 2 11-18-2006 08:11 PM
Drive Train Vibration Tom Wood Gear and Maintenance Articles 0 10-10-2002 08:00 PM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome