Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 29-11-2011, 16:17   #1
Registered User

Join Date: Jul 2011
Location: Stuart Fl
Boat: Cabo Rico 38
Posts: 692
Fuel Supply Shutting Down

I,have a friend with a ford diesel in his trawler,his engin runs for about a hour and shuts down.He beleives the fuel return line to the tank is clogged .He tells me the line runs thru the injector pump thru the block and exits at the rear of the engin,he thinks the clogged line is putting back pressure on the fuel supply and shutting it down.After the engin has sat for a couple of hours it restarts and repeats the process over.Any one know how to un clog this line.sounds to tough for me .
Thanks for the input
__________________

__________________
casual is offline   Reply With Quote
Old 29-11-2011, 16:21   #2
Senior Cruiser
 
DeepFrz's Avatar

Cruisers Forum Supporter

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 7,930
Re: fuel supply shutting down

What is the reason he believes it is his fuel return line?

It is more likely his fuel supply line that is partially clogged. Probably in the tank. Possibly a screen on his fuel pickup line. Could also be a clogged vent line on his fuel tank.
__________________

__________________
DeepFrz is offline   Reply With Quote
Old 29-11-2011, 17:45   #3
Registered User

Join Date: Jul 2011
Location: Stuart Fl
Boat: Cabo Rico 38
Posts: 692
Re: Fuel Supply Shutting Down

Hi and thanks,he claims all lines to the injector pump are clear .H e hooked up an electric pump and fuel came thru to the injector pump.He also said before this blockage occured he could hear fuel returning to the tank now he hears none.
__________________
casual is offline   Reply With Quote
Old 29-11-2011, 18:02   #4
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Re: Fuel Supply Shutting Down

Quote:
Originally Posted by casual View Post
Hi and thanks,he claims all lines to the injector pump are clear .H e hooked up an electric pump and fuel came thru to the injector pump.He also said before this blockage occured he could hear fuel returning to the tank now he hears none.
No fuel will return if none is going in. This is one of those here-say situations. Have him bypass the fuel filters (with very clean fuel) with a hose in a jerry can. Take it out for a spin for an hour or more. Then see what happens.
__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote
Old 29-11-2011, 18:06   #5
Senior Cruiser
 
DeepFrz's Avatar

Cruisers Forum Supporter

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 7,930
Re: Fuel Supply Shutting Down

Yes, in my explanation above I "assumed" that he had checked that his filters were clean and are maintained at proper intervals, ie: replaced at least once a year. Hopefully he has a vacuum gauge on the filter that will alert the owner when the filter/fuel line is clogged.
__________________
DeepFrz is offline   Reply With Quote
Old 29-11-2011, 18:29   #6
Registered User

Join Date: Feb 2009
Posts: 1,848
Re: Fuel Supply Shutting Down

I had a racor that was clean would run for 5hrs and then shut off clean Turns the filter had an air leak
__________________
motion30 is offline   Reply With Quote
Old 29-11-2011, 18:30   #7
Registered User

Join Date: Oct 2011
Location: Canada
Boat: CT 56
Posts: 418
Images: 3
Send a message via Skype™ to undercutter
Re: Fuel Supply Shutting Down

Easy to check return flow from engine by disconnecting tube from rubber hose going back to tank and placing in a jerry can. Run as usual, making sure that jerry can doesn't overflow. If engine does not quit then you have found the problem but this is not likely.

Usually, minor air leak in supply side or plugged supply hose but this would normally result in dropping fuel level in glass prefilter (racor), (There is one installed?) and would be readily apparent. Does he have to prime the engine after stall?

Also could be lift pump, especially if tank is very low to engine.

My guess is dirt in tank blocking pickup and then when suction falls off after engine dies, particles clear allowing fuel to be picked up. This is especially true in rougher waters. Biggest problem with fuel tanks!!!

Clean frequently so that your engine runs when you need it.
__________________

__________________
undercutter is offline   Reply With Quote
Reply

Tags
fuel

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
Marine Fuel Line Hose mobetah Engines and Propulsion Systems 25 22-09-2013 03:48
Challenge: How Much Extra Fuel and Water Do You Carry on Deck, or Below Decks ? Ocean Roads Challenges 8 10-11-2011 19:24
Engine and Generator Fuel Supply avazquez Engines and Propulsion Systems 6 06-08-2011 13:04
Converting Water to Fuel Don1500 Liveaboard's Forum 12 05-08-2011 19:55
Carb J tube issues drip fuel when engine running fast sdowney717 Engines and Propulsion Systems 0 11-07-2011 11:35



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 23:21.


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.