Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 05-10-2021, 18:26   #16
Registered User
 
Sailor_Al's Avatar

Join Date: Oct 2016
Location: Sebastian FL. Treasure Coast
Boat: Hunter 45 CC
Posts: 67
Re: Use of Bilge Blowers

Thanks everyone for the information. I may start using it; turn it when enabling the engine starter battery. Turning it off after shunting rhe engine down. Their really isnít a down side. And after pulling into the slip, while on shore power, it would be nice if the blower could help the Air conditioning cool the cabin down.

I may try to measure the engine compartment temp.
Sailor_Al is offline   Reply With Quote
Old 05-10-2021, 18:31   #17
Registered User

Join Date: Oct 2014
Location: Panama City Beach, FL
Boat: Beneteau 343
Posts: 472
Re: Use of Bilge Blowers

I installed a $30 Shurflo blower to pull air out of the engine compartment. I have no concerns re diesel fumes. It is a little loud and draws about 3.5 amps but it is mostly used while running the engine so not a big deal. It makes a huge difference in keeping the boat from getting miserably hot in the FL heat. The ss clamshell that covers the exit on the stern gets quite hot to the touch which tells me it is working.
EmeraldCoastSailor is offline   Reply With Quote
Old 06-10-2021, 04:36   #18
Senior Cruiser
 
GordMay's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 43,814
Images: 241
Re: Use of Bilge Blowers

Engineers refer to the difference between the ambient air (outside the boat), and the air in the engine compartment, as the delta T.
This difference should not exceed about 30 degrees Fahrenheit.

While considering airflow to the engine, you can use a basic test to check the sufficiency of the air inlets. At a fast cruise or at wide-open throttle, note the engine rpm, and then open an engine hatch and a cabin door.

If the rpm increases, along with the new additional flow of air, then you are not providing the engine with enough combustion air.

A common rule of thumb holds that decreasing air intake temperature by 10 degrees F will increase horsepower and torque by 1%.

More ➥ https://www.proboat.com/2015/06/venting-the-engineroom/

And ➥ https://www.marineairflow.com/blogs/...om-Temperature
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 06-10-2021, 05:20   #19
Registered User

Join Date: Apr 2013
Posts: 9,717
Re: Use of Bilge Blowers

Unless it's a very tight engine compartment, I wouldn't expect it to do much of anything while the engine is running. The engine is itself a high powered air pump pulling air from the engine room and sending it out with the exhaust. It's doing it in quantities far greater than the bilge blower is capable of.

If you are at dock or have excess battery capacity, running it for a bit after shutting down might help a little in terms of keeping the cabin from heating up due to the engine heat.

Propane should be properly bottom vented and diesel fuel doesn't create fumes like gasonline.
valhalla360 is offline   Reply With Quote
Reply

Tags
bilge

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Bilge blowers set up for Petrol Engines tronic72 Construction, Maintenance & Refit 8 07-05-2017 23:36
Blowers Tony B Electrical: Batteries, Generators & Solar 1 28-04-2015 21:45
Leopard 38: Thru Hull/Seacocks/Engine room blowers hikersailor Leopard Catamarans, Robertson & Caine 2 18-07-2014 13:06
For Sale: Jabsco Parts-Blowers-Yanmar-Interlux-Ground Tackle-Sails...More Conchfritterz Classifieds Archive 7 26-04-2012 10:37
Quiet engine room blowers ? SvenG Construction, Maintenance & Refit 0 05-05-2010 07:50

Advertise Here


All times are GMT -7. The time now is 14:38.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.