Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-05-2018, 06:53 PM   #1
KDA
Veteran Member
 
City: Vancouver
Join Date: Jan 2017
Posts: 46
diesel fuel lines

are there any preferences for the type of material that diesel fuel lines should be made of? I presently have copper tubing but it looks very dirty - accumulations of crud on the bottom. If I replace the fuel lines, should I replace with copper tubing or the appropriate fuel hose?
KDA is offline   Reply With Quote
Old 02-05-2018, 07:12 PM   #2
Guru
 
Airstream345's Avatar
 
City: Friday Harbor, WA USA
Vessel Name: FORTITUDE
Vessel Model: Kadey Krogen 54-8
Join Date: Jul 2017
Posts: 1,015
following
Airstream345 is offline   Reply With Quote
Old 02-05-2018, 07:13 PM   #3
Guru
 
psneeld's Avatar
 
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,147
either are satisfactory.

where and how they are installed makes a world of difference.
psneeld is offline   Reply With Quote
Old 02-05-2018, 07:38 PM   #4
Guru
 
O C Diver's Avatar
 
City: Fort Myers, FL... Summers in the Great Lakes
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 12,834
I chose USCG approved rubber fuel line approved for diesel fuel during my refit (replace all as it was 14 years old). In the event that I own the boat 15 years from now, I'll replace it again. Once you switch to rubber hose, if you ever have to replace it again, cost and time involved will be very minimal. I have seen copper lines for steering fail, presumably from vibration. No way to know the condition until they fail. With hose you can visually check for cracks and flex it to see how brittle it's getting.

Ted
__________________
Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
O C Diver is online now   Reply With Quote
Old 02-05-2018, 09:14 PM   #5
Senior Member
 
BIG CAT's Avatar
 
City: Kiln,MS
Join Date: May 2016
Posts: 457
Are you wanting to go back with hard line or flexible hose.?
BIG CAT is offline   Reply With Quote
Old 02-05-2018, 11:51 PM   #6
KDA
Veteran Member
 
City: Vancouver
Join Date: Jan 2017
Posts: 46
If I can use either tubing or hose, I think I will go with hose. The installation will be easier and I think the costs are a push. Thanks for your advice.
KDA is offline   Reply With Quote
Old 02-06-2018, 02:04 AM   #7
Moderator Emeritus
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,185
Use the proper approved rubber hose.
Comodave is offline   Reply With Quote
Old 02-06-2018, 05:08 AM   #8
Guru
 
boomerang's Avatar
 
City: Kilmarnock VA
Vessel Name: Wandering Star
Vessel Model: PSN40
Join Date: Apr 2016
Posts: 1,395
Clean,bright-colored rubber hose looks pretty but takes up more space & has much less of a bend radius than copper. Done in a neat fashion ,copper looks nice in the engine room,too. I would have to imagine copper has less fuel flow restriction verses rubber-walled hose. That said, I'll make due with the 5/16" supply & return lines in our boat and if ,in the future,we need/decide to repower & the engine manufacturer calls for larger diameter lines, I'm sure it will be hose with which the lines get replaced.
__________________
-Shawn-
boomerang is offline   Reply With Quote
Old 02-06-2018, 05:57 AM   #9
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 22,553
Have used both , rubber is easier and quicker.

Purchase the screw on fittings , rather than the store sweged on and you can make repairs easily.

That said on building a new boat I would use either steel tubing or small diameter steel pipe , mount it , paint it and forget it.
FF is offline   Reply With Quote
Old 02-06-2018, 08:51 AM   #10
Guru
 
angus99's Avatar
 
City: Signal Mtn., TN
Vessel Name: Stella Maris
Vessel Model: Defever 44
Join Date: Feb 2012
Posts: 2,742
Quote:
Originally Posted by O C Diver View Post
I chose USCG approved rubber fuel line approved for diesel fuel during my refit (replace all as it was 14 years old). In the event that I own the boat 15 years from now, I'll replace it again. Once you switch to rubber hose, if you ever have to replace it again, cost and time involved will be very minimal. I have seen copper lines for steering fail, presumably from vibration. No way to know the condition until they fail. With hose you can visually check for cracks and flex it to see how brittle it's getting.

Ted
Ted, do you happen to have any pix of your fuel lines you could post? I’m especially interested in how hoses look coming off a fuel distribution manifold.

Like many here, I suspect, I have 30-year-old copper lines. Lots of tight bends particularly off the manifold. I need to replace one from the polisher that is badly crimped and I have my doubts about a few others.

Quote:
Originally Posted by FF View Post
Have used both , rubber is easier and quicker.

Purchase the screw on fittings , rather than the store sweged on and you can make repairs easily.

That said on building a new boat I would use either steel tubing or small diameter steel pipe , mount it , paint it and forget it.
Fred, do you have a link or photo of the screw-ons you’re suggesting?
angus99 is offline   Reply With Quote
Old 02-06-2018, 11:18 AM   #11
TF Site Team
 
Pack Mule's Avatar
 
City: Paris,TN
Vessel Name: Slo-Poke
Vessel Model: Jorgensen custom 44
Join Date: Jan 2013
Posts: 3,749
Quote:
Originally Posted by angus99 View Post
Ted, do you happen to have any pix of your fuel lines you could post? I’m especially interested in how hoses look coming off a fuel distribution manifold.

Like many here, I suspect, I have 30-year-old copper lines. Lots of tight bends particularly off the manifold. I need to replace one from the polisher that is badly crimped and I have my doubts about a few others.



Fred, do you have a link or photo of the screw-ons you’re suggesting?
Fred may be talking about screw on reusable fittings and hose for fuel line, like the kind for hydraulic.
__________________
Marty
Pack Mule is offline   Reply With Quote
Old 02-06-2018, 11:43 AM   #12
Guru
 
angus99's Avatar
 
City: Signal Mtn., TN
Vessel Name: Stella Maris
Vessel Model: Defever 44
Join Date: Feb 2012
Posts: 2,742
Quote:
Originally Posted by Pack Mule View Post
Fred may be talking about screw on reusable fittings and hose for fuel line, like the kind for hydraulic.
Thanks, Marty. I’ll look them up. Just not clear on how they connect to the hose without swaging.
angus99 is offline   Reply With Quote
Old 02-06-2018, 11:49 AM   #13
Guru
 
psneeld's Avatar
 
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,147
Quote:
Originally Posted by angus99 View Post
Thanks, Marty. I’ll look them up. Just not clear on how they connect to the hose without swaging.
they screw on ...there is a fitting that goes inside the hose, and the outer fitting scews on and compresses everything. no swagong necessary and they are reusable.

an alternative is the press to fit> Parker blue hose and use a hose clamp yo met ABYC.
psneeld is offline   Reply With Quote
Old 02-06-2018, 12:16 PM   #14
Guru
 
O C Diver's Avatar
 
City: Fort Myers, FL... Summers in the Great Lakes
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 12,834
Quote:
Originally Posted by angus99 View Post
Ted, do you happen to have any pix of your fuel lines you could post? I’m especially interested in how hoses look coming off a fuel distribution manifold.

Like many here, I suspect, I have 30-year-old copper lines. Lots of tight bends particularly off the manifold. I need to replace one from the polisher that is badly crimped and I have my doubts about a few others.
All hose clamps are stepless (lined) so the worm and slots don't come in contact with the hose. All hangers are lined or plastic. PVC electrical conduit hangers come in many sizes, are inexpensive, and work great for hose and electrical wiring.

Click image for larger version

Name:	DSCN1751.jpg
Views:	229
Size:	114.1 KB
ID:	72743

Click image for larger version

Name:	DSCN1757.jpg
Views:	229
Size:	81.0 KB
ID:	72744

Ted
__________________
Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
O C Diver is online now   Reply With Quote
Old 02-06-2018, 03:54 PM   #15
Guru
 
angus99's Avatar
 
City: Signal Mtn., TN
Vessel Name: Stella Maris
Vessel Model: Defever 44
Join Date: Feb 2012
Posts: 2,742
Thank you both!
angus99 is offline   Reply With Quote
Old 02-06-2018, 04:24 PM   #16
Guru
 
Maerin's Avatar
 
City: East Coast
Vessel Name: M/V Maerin (Sold)
Vessel Model: Solo 4303
Join Date: Jun 2013
Posts: 886
Parker 221FR hose is the blue hose typically used in marine fuel applications. It is expensive. It has the USCG A1 embossed on the outer jacket. Any hose you use for fuel must carry that A1 USCG rating, a surveyor can ding you if it's not A1.


The fittings other posts have described are series 20. They are field attachable, two piece. If you read the fine print, 221FR hose is supposed to use series 26 fittings (require a hydraulic crimp) to fully meet the A1 spec, but I've never heard of a surveyor calling that out. The series 20 fittings are commonly used, they are easy to make up with a vise and wrenches. The hose can be cut with a cutoff wheel, hacksaw works but makes a messy cut.

Keep in mind that anything supported over an engine must be a metallic support, in a fire it won't let go. So the best way to fasten the hose is the rubber lined stainless pipe band.
__________________
Steve Sipe

https://maerin.net
Maerin is offline   Reply With Quote
Old 02-06-2018, 04:58 PM   #17
Guru
 
LarryM's Avatar
 
City: League City, TX
Vessel Name: Pelago
Vessel Model: Wellcraft 3300 Coastal
Join Date: Aug 2011
Posts: 1,069
Another option, similar to the Parker 221FR hose is Aeroquip FC234.

__________________
Larry
M/V Pelago
LarryM is offline   Reply With Quote
Old 02-06-2018, 09:43 PM   #18
Guru
 
Martin J's Avatar
 
City: Mt Crested Butte
Vessel Name: Artemis
Vessel Model: Cheoy Lee 67
Join Date: Feb 2013
Posts: 551
One important no no is galvinized, the diesel melts the galv and clogs the injection pump, injectors....
Martin J is offline   Reply With Quote
Old 02-07-2018, 02:22 AM   #19
Senior Member
 
Mr. Blu's Avatar
 
City: WAALRE
Vessel Name: Mr. Blu
Vessel Model: Beneteau Swift Trawler 52
Join Date: Jun 2017
Posts: 147
In Europe diesel fuel lines must be double clamped (AND OPPOSITE) on each side. Does this obligation not apply in the US?
__________________
Paul
Cruising the Netherlands
Mr. Blu is offline   Reply With Quote
Old 02-07-2018, 06:09 AM   #20
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 22,553
Fred may be talking about screw on reusable fittings and hose for fuel line, like the kind for hydraulic.

When you visit the store to buy the hose , they will happily provide either crimp on or screw on fittings.
FF is offline   Reply With Quote
Reply

Tags
diesel fuel lines?

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 10:18 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012