Yanmar Engine blower failed - SailNet Community
 2Likes
Reply
 
LinkBack Thread Tools
post #1 of 19 Old 05-10-2014 Thread Starter
Junior Member
 
Join Date: Mar 2011
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Yanmar Engine blower failed

Hi
My 2009 Beneteau 40 has Yanmar 4JH4AE 54 HP engine. A blower blows air into engine compartment. Blower has broken but VERY difficult to get at and replace.
No temp gauge, to see if overheating but all sounds great.
What is blower there for? Can I leave it be?
Thanks, JohnB40
JohnB40 is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 19 Old 05-10-2014
Junior Member
 
Join Date: Oct 2011
Posts: 18
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: Yanmar Engine blower failed

I had my 2008 B40 4 years and didn't realize the fan wasn't working. Replaced the fuse (located in the aft berth battery area) and now I have the noisy fan. I'm not sure the fan has anything to do with cooling. I was under the impression it was to clear fumes. Maybe others know for sure.

I agree it would be nice to have a real temp and oil pressure gauges. They are on my list. .
MI248 is offline  
Quote Quick Reply Share with Facebook
post #3 of 19 Old 05-10-2014
Junior Member
 
Join Date: Jan 2005
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Yanmar Engine blower failed

I don't think the fan is required by Yanmar on any of their consumer engines. I have that Yanmar on a Catalina 42 with no fan . However I do have temp and oil pressure both of which I consider mandatory on any engine and thankfully they are
not terribly expensive or difficult to install.

Those are great engines just take proper care and change the oil as prescribed
svtwilight is offline  
Quote Quick Reply Share with Facebook
post #4 of 19 Old 05-10-2014
jzk
Senior Member
 
jzk's Avatar
 
Join Date: Feb 2008
Location: Chicago, IL
Posts: 2,324
Thanks: 1
Thanked 11 Times in 11 Posts
Rep Power: 8
 
A blower is not necessary for a diesel engine.
jzk is offline  
Quote Quick Reply Share with Facebook
post #5 of 19 Old 05-10-2014
Senior Member
 
MarkofSeaLife's Avatar
 
Join Date: Nov 2010
Posts: 2,909
Thanks: 42
Thanked 118 Times in 100 Posts
Rep Power: 5
 
Dock
Re: Yanmar Engine blower failed

My blower fuse was with the starting key, instruments bundle. So check there.

Mine never worked for the first two years... And when I got it working I blew many fewer solenoids... So maybe a cooler engine compartment is better.

Sea Life
Notes on a Circumnavigation:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
MarkofSeaLife is offline  
Quote Quick Reply Share with Facebook
post #6 of 19 Old 05-11-2014
Senior Member
 
Join Date: Apr 2007
Location: Three Mile Harbor, East Hampton, NY
Posts: 493
Thanks: 1
Thanked 3 Times in 3 Posts
Rep Power: 9
 
Yanmar Engine blower failed

I think the blowers on the Beneteaus are primarily to cool the engine compartment. But they are noisy.
tweitz is offline  
Quote Quick Reply Share with Facebook
post #7 of 19 Old 05-11-2014
Junior Member
 
Join Date: May 2014
Location: Rhode Island
Posts: 14
Thanks: 7
Thanked 2 Times in 2 Posts
Rep Power: 0
 
Re: Yanmar Engine blower failed

I have a Beneteau 361 and had wondered the same thing so I asked about the purpose at a Diesel engine course a few weeks ago. For what it's worth, I was told the blower is to improve the air quality in the engine compartment. I guess it makes some sense since that is the air the engine uses.
MarkofSeaLife likes this.
Seand50 is offline  
Quote Quick Reply Share with Facebook
post #8 of 19 Old 05-11-2014 Thread Starter
Junior Member
 
Join Date: Mar 2011
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: Yanmar Engine blower failed

Thanks to all
I will replace ... quite a job.
Concensus seems that the engine will get less air (weight) if that air is hot in engine compartment. Also other equipment in engine compartment, even the alternator, is not helped by having hotter air in engine compartment.
JohnB40
JohnB40 is offline  
Quote Quick Reply Share with Facebook
post #9 of 19 Old 05-11-2014
Senior Member
 
MarkofSeaLife's Avatar
 
Join Date: Nov 2010
Posts: 2,909
Thanks: 42
Thanked 118 Times in 100 Posts
Rep Power: 5
 
Dock
Re: Yanmar Engine blower failed

Quote:
Originally Posted by JohnB40 View Post
Thanks to all
I will replace ... quite a job.

JohnB40
Check if its stuffed first.

Mine was just a dirty connection in the fuse holder.

Get in the aft lazarette and disconnect the blower and check theres power to it... If not the that will be the problem.

Sea Life
Notes on a Circumnavigation:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
MarkofSeaLife is offline  
Quote Quick Reply Share with Facebook
post #10 of 19 Old 05-11-2014
jzk
Senior Member
 
jzk's Avatar
 
Join Date: Feb 2008
Location: Chicago, IL
Posts: 2,324
Thanks: 1
Thanked 11 Times in 11 Posts
Rep Power: 8
 
Re: Yanmar Engine blower failed

I think I am going to call BS on this. Without a blower, how is the "air quality" any different? Is there just not enough air getting into the engine compartment? Is it starving for air?

Do you really think an engine compartment blower will affect the temperature of a water cooled engine? It purposefully sets its own temperature. If you try to cool it more, its thermostat will cool it.

Our 47.7 has no blower. The only other boat I have ever heard of having a blower motor on a diesel was a sea ray 460 but I suspect that has more to do with venting the engine compartment when one might be working down there.

Quote:
Originally Posted by Seand50 View Post
I have a Beneteau 361 and had wondered the same thing so I asked about the purpose at a Diesel engine course a few weeks ago. For what it's worth, I was told the blower is to improve the air quality in the engine compartment. I guess it makes some sense since that is the air the engine uses.
jzk is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

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

Password:


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

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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
Engine room blower exhaust brokesailor Gear & Maintenance 1 02-27-2012 07:50 AM
Bahama 30 engine compartment blower kentg Islander 8 12-17-2011 01:13 PM
Engine room / bilge blower refit (Atomic 4) captainVT Gear & Maintenance 4 06-03-2009 03:38 AM
Engine room blower on 97 Beneteau 381 CatalinaFan Gear & Maintenance 0 05-22-2008 10:50 AM
Diesel engine blower? sailor25b Gear & Maintenance 27 04-01-2007 03:08 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

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