Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 23-07-2011, 18:13   #16
Registered User

Join Date: May 2007
Location: New Zealand
Boat: Trismus 37
Posts: 760
Re: Electric Fuel Pumps Before Racors on Trawler

I have installed a squeeze bulb hand pump that is generic to outboard motors to prime the filter after changing / cleaning. works well.
__________________

__________________
Steve Pope is offline   Reply With Quote
Old 23-07-2011, 20:10   #17
ATC
Marine Service Provider

Join Date: Feb 2011
Location: St Petersburg, FL
Boat: Thompson Trawler, SUITE 44
Posts: 73
Re: Electric Fuel Pumps Before Racors on Trawler

Racors have a max on pressure - therefore the pumps are usally after the filters.
__________________

__________________
Absolute,

"Suckin Sludge & Havin a Gas"
ATC is offline   Reply With Quote
Old 23-07-2011, 22:45   #18
Senior Cruiser
 
Lancerbye's Avatar

Cruisers Forum Supporter

Join Date: Mar 2007
Location: Ladysmith,BC, Vancouver Island , Canada
Boat: Lancer 44 Motorsailer
Posts: 1,758
Images: 32
Re: Electric Fuel Pumps Before Racors on Trawler

When I purchased my boat it took me a while to find all the add on systems. This was one of them. I wondered for a while what the two switches were for. They were mounted right by the filters and when the switches were energized I could hear diaphram pumps running on the other side of the bulkhead. After tracing the lines and doing some investigation I found the very high quality diaphram pumps. They weren't needed to run the engines and were off normally so I figured they were for either filling the filters or bleeding the system. I have two Racor 500s and it is an absolute dream to change filters. They are there to fill and flush the filters. Don't be in too big of a hurry in taking them out if they are of good quality and properly installed. The quality of workmanship on the rest of the vessel should be a hint.
__________________
The basis of accomplishment is in never quitting
Mengzi Meng-tse
Lancerbye is online now   Reply With Quote
Old 23-07-2011, 23:20   #19
Registered User

Join Date: Jul 2011
Location: Berkeley
Boat: CT Trawler 40'
Posts: 11
Re: Electric Fuel Pumps Before Racors on Trawler

Okay, so it sounds like I need to investigate further how these pumps are actually activated and that if there is a way to use them without the engine running to fill the RACORS and prime the system they may be worth keeping, but that I probably don't really need them. I am presuming they work off the ignition switch but need to follow the circuit as I just purchased this Boat and some of the "add on" elements like this don't seem to be fully functioning. I'm replumbing everything from the diesel tanks to the engines so trying to evaluate each element and simplify systems where it makes sense. Previous owner had one engine running off the main tanks and the second engine running off a day tank so I'm checking, cleaning and replacing to make sure the entire system is tight and clean. Thanks for all the information.
__________________
kazenza is offline   Reply With Quote
Old 24-07-2011, 00:21   #20
Registered User
 
Simes's Avatar

Join Date: Jul 2008
Location: River Medina, Cowes Isle of Wight, UK
Boat: Gaff Schooner 45' - Talisman of Fambridge
Posts: 142
Images: 1
Re: Electric Fuel Pumps Before Racors on Trawler

If you have the option then fit the Racor so that it is level with the fuel tank.
On board Talisman there are two Racor 500s (one at 20 Microns and one at 10 microns) both are fitted in such a position that when the tank is full Racors fill them self.

The Racor 500s run just fine with a little air in the tip (filter), better with all fuel but ok with a little air, portion on the unit.

When changing the filter as you remove one filter the new one should just about replace the same volume of diesel so the level should not change by very much. Again when fitting the 500s to Talisman I also fitted a Fuel rated stop cock to either side of the 500. I can now also stop fuel from escaping the filter whilst changing.

Simes
__________________
Simes
Talisman of Fambridge
Simes is offline   Reply With Quote
Old 24-07-2011, 02:38   #21
Registered User
 
Simes's Avatar

Join Date: Jul 2008
Location: River Medina, Cowes Isle of Wight, UK
Boat: Gaff Schooner 45' - Talisman of Fambridge
Posts: 142
Images: 1
Re: Electric Fuel Pumps Before Racors on Trawler

I have done a quick drawing of my installation should it be of help.
You can find it in my Gallery "Talisman of Fambridge and Friends". Only 2 pix in there so should be to hard to find.

Simes
__________________

__________________
Simes
Talisman of Fambridge
Simes is offline   Reply With Quote
Reply

Tags
electric, fuel, trawler

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
Electric Propulsion KEALOHA Electrical: Batteries, Generators & Solar 333 04-05-2017 16:56
Fuel Polishing System Cap Engines and Propulsion Systems 62 03-04-2012 06:15
Do Not Use Biocide Journeyman Engines and Propulsion Systems 37 24-07-2011 19:47
Electric Fuel Pump for Generator Refill US1Fountain Electrical: Batteries, Generators & Solar 7 20-07-2011 13:32



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 03:46.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.