Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 15-01-2018, 08:48   #16
Registered User
 
daletournier's Avatar

Join Date: Jan 2012
Location: Seychelles
Boat: Catalina 470
Posts: 2,195
Re: Yanmar 3GM30 27hp

Quote:
Originally Posted by a64pilot View Post
It is better than aluminum and iron, not as good as bronze. Makes one wonder with as many engines that get ruined, why are they not all bronze?
Mine is bronze, but if it weren’t I’d have a hybrid dry stack one made, the upside down U part is dry and uncooled and covered by insulation, then inject the water downstream. No way water can back up into the engine that way and ruin your motor.
Example, the attached pic is the Nexgen 3.5 KW exhaust, old and new, the old was conventional fully cooled SS and ruined motors when it failed, so they made the new one and covered it with insulation and injected the water downstream.Attachment 162304
I have a hi rise setup on my current yanmar. As one that has hydrolocked a previous engine due to siphon valve salting up I much prefer this method.
__________________

__________________
daletournier is offline   Reply With Quote
Old 15-01-2018, 09:11   #17
Registered User

Join Date: Jan 2014
Location: Panama City FL
Boat: Island Packet 32 Cbreeze
Posts: 352
Re: Yanmar 3GM30 27hp

On the 32 Bob Johnson was a little close with the tolerance between the aft berth engine cover and the tip of the mixing elbow. I have even thought about changing the stuffing tube angle up slightly so I could have a little extra clearance. Probably add to the life of the motor mounts to get the engine/transmission down a bit. No room for a new/improved design unless I want a box sticking up in the aft berth .
__________________

__________________
Frankly is offline   Reply With Quote
Old 15-01-2018, 12:14   #18
Registered User

Join Date: Jan 2018
Posts: 4
Re: Yanmar 3GM30 27hp

Thank you all for the replies. A lot of good info here regarding what to watch for. I really appreciate the help.

Mahalo,
Dave
__________________

__________________
davenrino is offline   Reply With Quote
Reply

Tags
3gm, 3gm30, 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
For Sale: Yanmar diesel outboard 27hp zenataos Classifieds Archive 0 01-04-2014 01:50
Want To Buy: yanmar 27hp diesel outboard zenataos Classifieds Archive 6 07-08-2013 07:23
How to Prime Raw Water System on Yanmar 27hp Prashanti Propellers & Drive Systems 6 05-05-2012 15:33
Yanmar 27hp Throttle Sticking - Need Help merrick44 Construction, Maintenance & Refit 0 30-10-2010 13:58
Sole Mini 27hp michaelmrc Engines and Propulsion Systems 5 07-07-2009 13:21



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 20:53.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.