Fuel filters: what's going on here?!? - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Diesel
 Not a Member? 

Diesel This is a forum dedicated to diesel engines and their applicable accessories.


Like Tree1Likes
Reply
 
LinkBack Thread Tools
  #1  
Old 2 Weeks Ago
Classic30's Avatar
Once known as Hartley18
 
Join Date: Aug 2007
Location: Melbourne, Australia
Posts: 4,526
Thanks: 28
Thanked 42 Times in 42 Posts
Rep Power: 9
Classic30 will become famous soon enough Classic30 will become famous soon enough
Fuel filters: what's going on here?!?

Went to change out the filter (Racor glass-bowl type) today 3 weeks after dosing the tank with BC-250 Biocide against a light infestation of diesel bug and here's what the filter looked like:

Normal enough on top:


Cor blimey!




Sorry I didn't get any pics of the filter sitting on the bowl, but I wanted to clean up the mess in a hurry and didn't think to stop and take a photo.

Only the paint actually inside the bowl is affected. It looks for all the world to me like the paint on the outside of the filter cartridge isn't compatible with diesel fuel. Is this even possible? Could it be part of a faulty batch maybe?!?

I'm glad I checked it because a few flakes of paint were already sitting in the bowl ready to be sucked into the secondary filter... and it's only been three weeks since the last filter change.
__________________
-
"Honestly, I don't know why seamen persist in getting wrecked in some of the outlandish places they do, when they can do it in a nice place like Fiji." -- John Caldwell, "Desperate Voyage"

Last edited by Classic30; 2 Weeks Ago at 01:55 AM.
Reply With Quote Share with Facebook
  #2  
Old 2 Weeks Ago
pdqaltair's Avatar
Senior Member
 
Join Date: Nov 2008
Location: Deale, MD
Posts: 2,198
Thanks: 1
Thanked 32 Times in 32 Posts
Rep Power: 6
pdqaltair is on a distinguished road
Re: Fuel filters: what's going on here?!?

The paint pealing is probably a result of the major ingredient (common in paint removers):

Diethylene glycol monomethyl ether >60%

Not a US brand, so I have noted tested it and don't know anything about it. Certainly the glycol ether will help with cleaning (also common in carb cleaners), but I'm not certain how all of the system materials will react.
__________________
(when asked how he reached the starting holds on a difficult rock climbing problem that clearly favored taller climbers - he was perhaps 5'5")

"Well, I just climb up to them."

by Joe Brown, English rock climber




To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #3  
Old 2 Weeks Ago
Faster's Avatar
Just another Moderator
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 14,700
Thanks: 69
Thanked 197 Times in 189 Posts
Rep Power: 10
Faster has a spectacular aura about Faster has a spectacular aura about Faster has a spectacular aura about
Re: Fuel filters: what's going on here?!?

Must have been the biocide itself that attacked the paint.. an overdose perhaps?

Glad you caught it when you did.
__________________
Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Reply With Quote Share with Facebook
  #4  
Old 2 Weeks Ago
RichH's Avatar
Senior Member
 
Join Date: Jul 2000
Location: Pennsylvania
Posts: 2,842
Thanks: 9
Thanked 75 Times in 68 Posts
Rep Power: 15
RichH will become famous soon enough
Re: Fuel filters: what's going on here?!?

Could also possibly be the result of the fuel oil containing amounts of reclaimed 'biofuel' made from used cooking oils. The chemical responsible would be the contaminant - oleic acid, a well know 'problem' in fuel oils made from and blended with reclaimed 'cooking oil'.
If such is the case, then you will also find that the 'gaskets' and O-rings made from BUNA or Neoprene would be 'softened'.

On most filters with this type of physical configuration, the 'sump' is on the upstream side of the pleat pack; therefore, such flakes and debris would be captured on the pleats, but not the 'dissolved' nor particulated debris that is much smaller than the ĶM rating of the filter media, but surely would help to 'choke' the flow of oil if and when they did break loose.

Last edited by RichH; 2 Weeks Ago at 10:32 AM.
Reply With Quote Share with Facebook
  #5  
Old 2 Weeks Ago
Senior Member
 
Join Date: Feb 2011
Location: San Francisco Bay area
Posts: 2,227
Thanks: 2
Thanked 37 Times in 37 Posts
Rep Power: 4
MarkSF is on a distinguished road
Re: Fuel filters: what's going on here?!?

Seems like a strange design, to have paint on a wetted area. Why would you do that? The cartridges for my Fram filter are bare metal.
__________________
1984 Bristol 31.1
Alameda, California, USA
Reply With Quote Share with Facebook
  #6  
Old 2 Weeks Ago
RichH's Avatar
Senior Member
 
Join Date: Jul 2000
Location: Pennsylvania
Posts: 2,842
Thanks: 9
Thanked 75 Times in 68 Posts
Rep Power: 15
RichH will become famous soon enough
Re: Fuel filters: what's going on here?!?

These are probably made in China by Xingtai Shengkaiyuan Material Co a 'new' manufacturing (a private label / re-branding) firm attempting to penetrate the lucrative worldwide automotive filtration market.

Fleetguard Oil Filter (LF670/LF677) China (Mainland) Auto Filter
Reply With Quote Share with Facebook
  #7  
Old 2 Weeks Ago
Senior Member
 
Join Date: Feb 2011
Location: San Francisco Bay area
Posts: 2,227
Thanks: 2
Thanked 37 Times in 37 Posts
Rep Power: 4
MarkSF is on a distinguished road
Re: Fuel filters: what's going on here?!?

Maybe look for a Wix substitute.
RichH likes this.
__________________
1984 Bristol 31.1
Alameda, California, USA
Reply With Quote Share with Facebook
  #8  
Old 2 Weeks Ago
JimsCAL's Avatar
Senior Member
 
Join Date: May 2007
Location: Glen Cove, NY
Posts: 2,430
Thanks: 2
Thanked 35 Times in 34 Posts
Rep Power: 8
JimsCAL is on a distinguished road
Re: Fuel filters: what's going on here?!?

Quote:
Originally Posted by RichH View Post
These are probably made in China by Xingtai Shengkaiyuan Material Co a 'new' manufacturing (a private label / re-branding) firm attempting to penetrate the lucrative worldwide automotive filtration market.

Fleetguard Oil Filter (LF670/LF677) China (Mainland) Auto Filter
That's the chances you take when using an off-brand replacement. You decide if it's worth saving a few $.
Reply With Quote Share with Facebook
  #9  
Old 2 Weeks Ago
Classic30's Avatar
Once known as Hartley18
 
Join Date: Aug 2007
Location: Melbourne, Australia
Posts: 4,526
Thanks: 28
Thanked 42 Times in 42 Posts
Rep Power: 9
Classic30 will become famous soon enough Classic30 will become famous soon enough
Re: Fuel filters: what's going on here?!?

Quote:
Originally Posted by Faster View Post
Must have been the biocide itself that attacked the paint.. an overdose perhaps?

Glad you caught it when you did.
That's possible.. since the only thing I did differently this time around is to add extra biocide to kill the diesel bug that's clogging the filters in the first place. How well it actually mixed in I'm not sure.

I've never heard of biocide attacking paint before.

Despite the instructions, in future I think I'll start adding biocide to the fuel in the jerry-can rather than directly into the tank - and consider filtering it into the tank rather than adding directly (regardless of how clean the fuel appears to be).
__________________
-
"Honestly, I don't know why seamen persist in getting wrecked in some of the outlandish places they do, when they can do it in a nice place like Fiji." -- John Caldwell, "Desperate Voyage"

Last edited by Classic30; 2 Weeks Ago at 07:41 PM.
Reply With Quote Share with Facebook
  #10  
Old 2 Weeks Ago
Classic30's Avatar
Once known as Hartley18
 
Join Date: Aug 2007
Location: Melbourne, Australia
Posts: 4,526
Thanks: 28
Thanked 42 Times in 42 Posts
Rep Power: 9
Classic30 will become famous soon enough Classic30 will become famous soon enough
Re: Fuel filters: what's going on here?!?

Quote:
Originally Posted by RichH View Post
These are probably made in China by Xingtai Shengkaiyuan Material Co a 'new' manufacturing (a private label / re-branding) firm attempting to penetrate the lucrative worldwide automotive filtration market.

Fleetguard Oil Filter (LF670/LF677) China (Mainland) Auto Filter
That's a bit frightening, since there's nothing on the can to indicate where they're made (and I've never questioned why they're so cheap).

I notice they also make 'Volvo-brand' filters! Shiite.. I've been lucky so far but will need to be a lot more vigilant in future.
__________________
-
"Honestly, I don't know why seamen persist in getting wrecked in some of the outlandish places they do, when they can do it in a nice place like Fiji." -- John Caldwell, "Desperate Voyage"
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
How much water in the fuel filters is Ok? MarkSF Diesel 13 10-15-2013 08:32 AM
2 micron fuel filters billyruffn Gear & Maintenance 12 12-14-2011 05:34 PM
fuel filters bog69 C36 0 10-24-2009 08:24 PM
Diesel Fuel Filters roline Gear & Maintenance 2 09-27-2009 01:33 PM
Diesel fuel filters ahoyjim General Discussion (sailing related) 0 01-06-2006 06:47 PM


All times are GMT -4. The time now is 07:19 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.