Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 28-11-2007, 17:30   #1
Registered User

Join Date: Nov 2007
Location: Florida
Boat: Pacific Trawler 37
Posts: 17
Question Racor Filtration

I have 34' sailboat with a Volvo 29hp MD2030 engine. The difficulty of changing the primary filter along with bleeding the system has me looking into replacing it with a Racor 500 series or possibly a spin-on 460. Along with this I was going to add a vacuum gauge and water sensor. Also to polish fuel and assist in the bleeding the plan is to put a Walbro fuel pump on a parallel line. This all seems good in theory but matching up the existing fuel lines with the new equipment has me concerned. Racor spin on has 3/8" NPT, Racor 500 is 1/4"-16 UNF, Walbro is 1/4"-18 NPSF in 7psi or 10psi and the size fuel line I have now I only think is 3/8". Will all the necessary fittings be easily available? Any suggestions on which Racor or Walbro? Will this work? Anything I'm missing?

jjorg
__________________

__________________
jjorg is offline   Reply With Quote
Old 28-11-2007, 17:35   #2
Registered User

Join Date: May 2007
Location: New Zealand
Boat: Trismus 37
Posts: 760
just a thought, I have fitted a squeeze bulb (of any outboard tank) into the fuel line prior to the 1st filter, it is great for bleeding as it also has a non return valve. Wondered how I managed before fitting it. No electricity just a squeeze or 10.
__________________

__________________
Steve Pope is offline   Reply With Quote
Old 28-11-2007, 17:47   #3
Senior Cruiser
 
rebel heart's Avatar

Cruisers Forum Supporter

Join Date: Oct 2005
Posts: 6,190
Images: 3
I've got twin racors with a gauge; they work like a champ. Ditto on the bulb for pumping the fuel. The first time you change the racor filter and don't have any spare diesel fuel to fill the filter bowl, you're going to laugh pretty hard as you operate that tiny little bleed pump on the engine for 30 minutes.

The racors I have are 2 500's, with a valve to switch between them. I've had to use the valve once before underway, and I was pretty happy that I had. But if you keep your fuel tank clean (the way I'm trying to now), the duel setup seems overkill.
__________________
rebel heart is offline   Reply With Quote
Old 28-11-2007, 17:51   #4
Registered User

Join Date: Nov 2007
Location: Florida
Boat: Pacific Trawler 37
Posts: 17
Racor Filtration

Thanks. The bulb sounds like a good inexpensive way to bleed the air but I think I'll try to work a fuel pump in also for a polishing system. Wish I had room for the dual filters.

jjorg
__________________
jjorg is offline   Reply With Quote
Old 28-11-2007, 17:56   #5
Registered User

Join Date: Jun 2005
Posts: 1,901
ok.
If this is an ocean boat there is no excuse in my opinion for any Racor smaller than the 500. This includes all the spin-on's that are rated for the flow, but are a PIA to change.
Get the 500.
I detest squezez bulbs. I've yet to run across one that didn't leak.
The engine supply fuel pump is plenty strong enough to prime the system after all it runs the system at full load
It does however take some getting used to AND a system that is sealed. A system with even minor air leaks won't bleed down.
__________________
never monday is offline   Reply With Quote
Old 28-11-2007, 22:10   #6
Moderator Emeritus
 
David M's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: San Francisco Bay
Boat: research vessel
Posts: 10,150
Ditto about the dual Racors. If you can find any space at all for them then do it. I have had to switch over a few times because of fouling caused by bacteria that feeds on diesel. What a hassle free way of changing to a fresh filter. No bleeding and it can be done in a few seconds. I have a vacuum sensor and a water sensor on them as well.

About the tubing and hose adapters, any good hardware store stocks them.
__________________
David

Life begins where land ends.
David M is offline   Reply With Quote
Old 28-11-2007, 23:08   #7
Moderator
 
Boracay's Avatar

Cruisers Forum Supporter

Join Date: Feb 2004
Location: Pelican Bay, Great Sandy National Park
Boat: Steel Roberts Offshore 44
Posts: 5,175
Images: 18
Keeping on trucking...

I installed a Racor 500FG.

I got all the parts (adapters, tubing, valve etc.) from my friendly local truck spare parts shop.
__________________
Rust never sleeps
Boracay Blog.
Boracay is offline   Reply With Quote
Old 29-11-2007, 00:38   #8
Registered User

Join Date: May 2007
Location: New Zealand
Boat: Trismus 37
Posts: 760
I have a Racor 200 filter and an Automotive one with a pump built in that came with the boat and am using 2 micron filter on the Racor and whatever is the micron size that comes with the auto one, I dont have a lift pump on the engine (Kubota 22hp) but rely on a Facet 12v one fitted close to the remote filters I find by filling the tank when I return to base I havn't suffered from any diesel fouling
(bugs etc.) I havn't had any leakage problems with the bulb, I would assume you have had one that leaks then it wasn't installed correctly. I carry a spare bulb and spare Facit pump. I inspect my tank every few months and suck out any water and accumulated dirt. Touch wood I havn't had any problems so far.
__________________
Steve Pope is offline   Reply With Quote
Old 29-11-2007, 06:46   #9
Registered User

Join Date: Mar 2007
Location: Brisbane
Boat: s/v Sildene
Posts: 91
Noticing the high regard in which the Racor 500 diesel filter is held, I have been considering an upgrade to it from my current CAV 269 diesel filter.

However, the Racor is substantially larger (takes up about twice the space), so I wondered whether anyone can level good criticism at the CAV, to give me some excuse to move away from the compact CAV.

(The CAV 269 is a combined water separator and coarse filter, with a glass bowl and drain screw. The same body was also made by Lucas and is now made by Delphi).

So, has anyone had negative experiences with the CAV, or found reason to move from a CAV to the Racor, in the context of a two or three cylinder diesel (under 40HP)?

Martin
__________________
sildene is offline   Reply With Quote
Old 29-11-2007, 06:50   #10
Registered User

Join Date: Jun 2005
Posts: 1,901
Martin,
Any filtration before the engine is great.
The 500 is held in high regard because of it's design and cost for replacement elements.
The design of the 500 allows changing of the filter without rebleeding of the system if done carefully. The replacement elements are about $10.00 and have no metal parts so they wont rust while waiting in the spares box.
__________________
never monday is offline   Reply With Quote
Old 29-11-2007, 07:44   #11
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,579
Images: 240
Pat:
I donít recall where I got the following, but wonder if youíd care to comment on the authorís opinions, regarding Filtre Element size:

< quote >
The 2 micron filters are a secondary filter, made to be an engine filter on engines that don't have one of there own. If you use a 2 micron as a primary filter (the first one the fuel goes to from the tank) you won't get any of the centrifugal action the housing was designed to do for spinning out things that are heavier than fuel, such as water. The last letter in the 2 micron filter part number is "S" for secondary.

The 10 micron filter is a transitional filter, made to be used in extreme duty locations as an intermediate filter between the primary and secondary. Again, not much happening in the centrifugal action. The last letter in the 10 micron filter part number is "T".

The 30 micron filter is what was designed to be a primary filter, does the job best as the first filter the fuel goes through.
< end quote >
__________________
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 29-11-2007, 08:00   #12
Registered User

Join Date: Jun 2005
Posts: 1,901
Gord,
I agree with the author.
Most of the engine mounted filters on mechanical diesel engines are 5-7 mcn. Particulate small than that size will pass thru and be exhausted.
2 mcn filters upstream also have a tendency to clog sooner and reduce fuel flow. This can cause a reduction in power and a lean condition. The lean condition is the more severe problem. This causes higher combustion cylinder temperatures and to the extreme can melt pistons.
__________________
never monday is offline   Reply With Quote
Old 29-11-2007, 08:06   #13
CF Adviser
 
Pelagic's Avatar

Cruisers Forum Supporter

Join Date: Oct 2007
Boat: Van Helleman Schooner 65ft StarGazer
Posts: 6,890
Gord!
I am so impressed! There is a rarely seen data sheet that Racor puts out to their dealers that has that info on it.

Wonder if it can be found on the Racor web site?
Nick
__________________
Pelagic is offline   Reply With Quote
Old 29-11-2007, 08:10   #14
Registered User

Join Date: Jun 2005
Posts: 1,901
All Racor diesel filters are color coded also.
Brown = 2mcn
Blue = 10 mcn
Red = 30 mcn.
This will either be molded into the end caps on an older cartridge element. and the printing on newer ones. On the metal can elements the color is the color of the printing on a tan background.
__________________
never monday is offline   Reply With Quote
Old 29-11-2007, 12:15   #15
Registered User

Join Date: Jun 2006
Posts: 237
FWIW, I just replaced the element on my 500. For anyone that bought the 500 more than a couple years ago, you need a rubber donut adapter so the element seals properly. Recor sends them out for free and I got mine in 2 days. You could fabricate a spacer with stiff fuel hose but I'd be worried about getting a good seal.

When you buy a new 500, I was told by Racor that it comes with the 2micron element. I replaced mine with a 30 but it seems strange that they ship the new unit with an element not designed for its primary/common purpose?
__________________

__________________
drh1965 is offline   Reply With Quote
Reply

Tags
racor

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
Racor Turbine Fuel Filter/Water Seperator drh1965 Engines and Propulsion Systems 11 30-08-2007 08:48
Cheap Racor Filters Wildrice Engines and Propulsion Systems 5 30-06-2007 16:30
SOMEONE Help!! Racor R12 PUL Doghouse Engines and Propulsion Systems 4 30-05-2007 08:39
Racor 500 Element Warning Pete the Cat Engines and Propulsion Systems 33 10-11-2006 03:55



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 22:26.


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.