Go Back   Trawler Forum > Trawler Builders Forums > Marlow - Mainship

Reply
 
Thread Tools Display Modes
 
Old 10-15-2016, 08:29 AM   #1
Member
 
City: Punta Gorda FL
Country: USA
Join Date: Jul 2016
Posts: 6
Racor Filter Micron Size Yanmar 440

What Racor Filter (900 Series) micron size are folks using for Yamar engines? 2u 10u 30u?
__________________
Advertisement

IndigoStar is offline   Reply With Quote
Old 10-15-2016, 12:04 PM   #2
Guru
 
djmarchand's Avatar
 
City: Essex, Ct
Country: USA
Vessel Name: Bella
Vessel Model: Mainship Pilot 34
Join Date: Aug 2012
Posts: 2,088
Use a 2 micron for the on-engine Yanmar filter and a 10 for the Racor.


Why not use a 2 on the Racor? Well you could but then it will plug more quickly and you have a 2 on the engine to catch the really fine stuff.


Why not use a 30 on the Racor- puts too much load on the on-engine filter so it will plug more quickly. Also it is more expensive and difficult to change.


10 and 2 is a compromise.


David
__________________

djmarchand is offline   Reply With Quote
Old 10-15-2016, 12:07 PM   #3
Guru
 
Ski in NC's Avatar
 
City: Wilmington, NC
Country: USA
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 2,769
Yup, 10 or 30. Have not seen much difference in clog rate on those, but 2's seem to choke up real quick.
Ski in NC is offline   Reply With Quote
Old 10-15-2016, 02:51 PM   #4
Guru
 
HiDHo's Avatar
 
City: Heartland
Country: USA
Vessel Name: Hi-D-Ho
Vessel Model: 1987 Krogen Manatee
Join Date: Feb 2012
Posts: 592
I've read that two 2 micron filters are tough on fuel pumps. I use 10/2 ratio.
HiDHo is offline   Reply With Quote
Old 10-17-2016, 03:42 PM   #5
Senior Member
 
City: hawaii
Country: usa
Vessel Name: #31
Vessel Model: ex-Navy MUB 50 fish/cruise
Join Date: Aug 2013
Posts: 127
Quote:
Originally Posted by HiDHo View Post
I've read that two 2 micron filters are tough on fuel pumps. I use 10/2 ratio.
I'm not a Yanmar guy, but diesel fuel delivery is pretty generic, so I can offer this:
Fuel pumps are generally pretty tough items, and should never see any strain if your filtration system is up to snuff and regularly monitored/maintained.
I would get another racor to mount inline, so that your filtration is 30-10-2, and install a vacuum gauge with a drag indicator between the filters and the pump.
__________________
You can lead a horse to water,
But you can't make him ski...
kapnd is offline   Reply With Quote
Old 10-17-2016, 03:53 PM   #6
Guru
 
City: Fort Myers
Country: USA
Join Date: Jul 2013
Posts: 771
Step filtering is what you want like others have stated.
__________________

Marlinmike is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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





All times are GMT -5. The time now is 04:34 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012