Diesel engine blower? - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 28 Old 03-28-2007 Thread Starter
Member
 
Join Date: Jun 2006
Posts: 52
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
 
Diesel engine blower?

I'm thinking of installing one of those small in-line blowers to exhaust the heated air from my diesel engine compartment. I could attach it to a ventilation hose that leads aft. I believe it will help on those hot summer nights, and should keep the air fresh in the aft berth.

Is this a good idea? If so, should I run it continuously when the engine's running, or should I put it on a switch and turn the blower on after running the engine?
sailor25b is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 28 Old 03-28-2007
Larus Marinus
 
Idiens's Avatar
 
Join Date: Jan 2007
Location: Brussels
Posts: 1,756
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
I have two. They are wired to run when the engine is running.
Idiens is offline  
Quote Quick Reply Share with Facebook
post #3 of 28 Old 03-28-2007
.
 
Join Date: Nov 2006
Posts: 10,851
Thanks: 0
Thanked 5 Times in 2 Posts
Rep Power: 13
         
I have it too, in fact, even with a Diesel engine its mandatory by law in the European Union.

I have an inline (had a centrifugal impeller one, but was too heavy and noisy, so I removed it), made by vetus, and its on when the engine is on. It helps recirculate air inside the engine compartment and removes the hot air.

Its good to dry the shoes also.....
Giulietta is offline  
Quote Quick Reply Share with Facebook
post #4 of 28 Old 03-28-2007
Senior Member
 
hellosailor's Avatar
 
Join Date: Apr 2006
Posts: 11,347
Thanks: 5
Thanked 129 Times in 126 Posts
Rep Power: 11
   
When the engine is running, it should be sucking in enough air (which is simply taken from the engine compartment in small boats) to keep up good airflow. The real value with a diesel engine is when the engine is shut down, the forced air from the blower will cool it down faster, which prevents the engine oil from cooking and tarring, and taking the heat out of the boat keeps you cooler as well.
As an exhaust for the afterberth it might be excessive--engine blowers usually are high velocity and noisy. For a berth you are better off with a low velocity high area (i.e. large and slow) fan.
hellosailor is offline  
Quote Quick Reply Share with Facebook
post #5 of 28 Old 03-28-2007
Just another Moderator
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 16,387
Thanks: 101
Thanked 304 Times in 294 Posts
Rep Power: 10
     
I think it's a great idea, as long as you are sure you will still have adequate air intake to the engine box to run the engine. The fan will remove heat more quickly, and also perhaps help to minimize the inevitable odors that manage to sneak out into the cabin space after a long run.

I'd run the fan all the time the engine runs, and perhaps with an off-delay timer so it runs a minute or two to exchange the engine box air a time or two after shutdown.
Faster is online now  
Quote Quick Reply Share with Facebook
post #6 of 28 Old 03-29-2007
Senior Member
 
Join Date: Dec 2005
Posts: 288
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
 
I have read (but don't really know) that some blower motors are not designed to run for long periods of time--ie. anytime the engine is on. Others apparently are designed for continuous, longer term operation. Does anyone know if that's true, and which ones are short/long term use?
Frank
FrankLanger is offline  
Quote Quick Reply Share with Facebook
post #7 of 28 Old 03-29-2007
.
 
Join Date: Nov 2006
Posts: 10,851
Thanks: 0
Thanked 5 Times in 2 Posts
Rep Power: 13
         
I have installed the white one on the bottom left of page 89 of Vetus....

Had the black one but was too noisy and heavy..can you get these in the US?

Pretty good Vetus
Giulietta is offline  
Quote Quick Reply Share with Facebook
post #8 of 28 Old 03-29-2007
Junior Member
 
Join Date: Mar 2007
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Thermostat?

How about an electric thermostat? Would only turn on when it gets hot. Would shut down when it's cooled. You would have to set it high enough that it doesn't pop on during a hot day though.
GrittySchu is offline  
Quote Quick Reply Share with Facebook
post #9 of 28 Old 03-29-2007 Thread Starter
Member
 
Join Date: Jun 2006
Posts: 52
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
 
I just bought this one: Marine In-Line Blower
sailor25b is offline  
Quote Quick Reply Share with Facebook
post #10 of 28 Old 03-29-2007
Senior Member
 
hellosailor's Avatar
 
Join Date: Apr 2006
Posts: 11,347
Thanks: 5
Thanked 129 Times in 126 Posts
Rep Power: 11
   
"How about an electric thermostat?"
More stuff to break?

Actually, if your engine block has a spare thread tapped in it, you can use a standard automotive fan switch--perhaps with a manual blower bypass. They typically come on between 170-200F which is not ideal for a raw-water cooled diesel but might be good enough.
hellosailor 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
Runaway Diesel Engine Ben Hilke Gear and Maintenance Articles 0 07-19-2004 08:00 PM
Surveying a Diesel Engine Tom Wood Buying a Boat Articles 0 01-26-2003 07:00 PM
Surveying a Diesel Engine Tom Wood Gear and Maintenance Articles 0 01-26-2003 07:00 PM
Diesel Maintenance Mark Matthews Gear and Maintenance Articles 0 06-10-2002 08:00 PM
Replacing the Diesel Engine Sue & Larry Gear and Maintenance Articles 0 06-12-2000 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