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#1
12-02-2005, 11:40 PM
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Do I have to bleed fuel sys after return hose replacement?
I will be changing my badly weeping injector return lines soom. Will I have to then bleed the fuel sys?
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#2
12-02-2005, 11:43 PM
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No.
.
__________________
[http://languageandgrammar.com/2008/01/14/youve-got-problems-not-issues/ ] "A liberal is someone who feels they owe a great debt to their fellow man, which debt he proposes to pay off with your money."
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#3
12-02-2005, 11:46 PM
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Just R&R the hoses and be done with it?....
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#4
12-02-2005, 11:54 PM
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Quote:
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#5
12-03-2005, 09:52 AM
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bleed fuel system
I believe dkverou is correct. And you were wise to replace those return lines, I assume they are of the type with the "cloth weave" outer skin, which fail and leak with age, plus, since fuel seeps out under pressure, air seeps in when the engine is shut down and fuel pressure drops to zero.
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#6
12-03-2005, 02:35 PM
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Quote:
The injectors spill diesel, not injected into the engine, into the return ports...this part of the fuel system is not pressurised and no air can get back in to the pressure or supply side of injection system. The filter assembly is pressured by the injection pump's own lift pump and will push any air out the top of the filter too. The return banjo bolt on filter top will allow some air to enter the main fuel filter but due to a supply/return restrictor in the filter housing, fuel will still go to the IP under pressure.............of course, you'll run out of fuel real quick like this ! .
__________________
[http://languageandgrammar.com/2008/01/14/youve-got-problems-not-issues/ ] "A liberal is someone who feels they owe a great debt to their fellow man, which debt he proposes to pay off with your money." Last edited by dkveuro; 12-03-2005 at 02:45 PM.
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#7
12-19-2005, 05:17 PM
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bad info
Quote:
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#8
12-19-2005, 07:46 PM
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Quote:
__________________
1984 Mercedes 300D 2003 F350 dully crewcab, 4 WD, 7.3 stroke, 81,000 1992 Dodge dully club cab, Cummalong 2nd gen , auto185,000 1990 F350 dully 7.3 stroke 239,000 motor , 5 speed, motor & tranny never opened 1986 Freightshaker FLD , Cummings L10/300hp., 10 speed, 848,000
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#9
12-19-2005, 08:29 PM
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Just throw on the new crack free lines and enjoy.
__________________
I'm not a doctor, but I'll have a look.  '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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