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#1 |
~Craig~
Join Date: Mar 2009
Location: Kearns Utah
Posts: 169
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Today was the day they let us go at work, now it feels like my truck is jumping in ..
.... my **** list. As many of you have seen I've been having carb issues. After a few attempts to tune it I realized that I have been leaking at the fuel pump outlet. Not piss leaking just dripping consistently. Today was the day my work laid of 70 people, figuring fixing this problem would make me happy because I could drive my truck I went at it. I removed the original fuel line *Steel* to inspect it, the pump outlet looked to be fine, so I finally ripped the line out, and that allowed me to finally change my filter as the line was locked I could only remove the filter housing. I got my old line out, freed the line from the filter assembly *Qjet inline* and as much as I hated to do it, bought adapters, rubber fuel hose, and a new fuel filter. FUEL FILTER WAS CLOGGED. So I got it back together and started her up. I could tell the top end sputter was gone and that I'd need to re tune the idle, as it would idle for a couple minutes and die. Come to find out it wouldn't idle because now it's PISSING out of the outlet, can watch it come around the threads of the adapter. The pump is only a year old. I think originally I may have overtightened the connector???? Is this possible? It's not leaking from the line, just the threads on the outlet of the pump. I have not used any gasket sealer as I know I shouldnt need to. How tight should I tighten the line into a new fuel pump. I know this is bad but even 20 dollars is not doable for me if that's not what it is. So before I break down and spend it have you ever had this problem? Maybe I broke the housing if I tightened it down to tight?
Chevy 350 Stock Pump Stock Q jet. Any feedback helps Thanks so much |
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#2 |
Registered User
![]() Join Date: Sep 2010
Location: Richmond, Va
Posts: 573
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
sounds like a shi*** day...
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#3 |
~Craig~
Join Date: Mar 2009
Location: Kearns Utah
Posts: 169
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
I did not mean to write the actual word up there I know it's a family friendly site I was going to Symbol It Out, Sorry
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#4 |
~Craig~
Join Date: Mar 2009
Location: Kearns Utah
Posts: 169
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
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#5 | ||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,940
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
Sounds like you either stripped the threads... or just needs to be about an 1/8 of a turn tighter.
Gary
__________________
'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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#6 |
Senior Member
Join Date: Aug 2005
Location: tulsa OK
Posts: 3,070
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
you are using a inverted flare fitting, rather then just a streight fitting, correct?
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#7 |
Junior Member
Join Date: Mar 2007
Location: Hideaway, TX
Posts: 4,950
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
try some teflon tape
__________________
71 Suburban 350/700R4 Project Trixie 72 CHEVY,Highlander,SWB,396,T400 |
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#8 |
~Craig~
Join Date: Mar 2009
Location: Kearns Utah
Posts: 169
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
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#9 | |
~Craig~
Join Date: Mar 2009
Location: Kearns Utah
Posts: 169
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
Quote:
So yes I am using the correct connector, and I used the same connector at the carb, and am not leaking there |
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#10 |
I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
Make sure to "back up" the fitting on the fuel pump when tightening it.Just put a wrench on it and hold it so it doesn't twist.You should be able to tighten it enough.
__________________
The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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#11 |
~Craig~
Join Date: Mar 2009
Location: Kearns Utah
Posts: 169
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
Thanks for the boost on the back it up comment. I'm 5'8" and weigh 120 So I guess even when I feel i'm getting on it, it's probably not enough, went out with a pair of vice grips, some teflon, got on it hard. Leak stopped. My day is somewhat better, and will be after I tune the idle and go for a long deserved drive, thanks so much!
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#12 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
Remove the line and look for dirt or rust on the flair. Tighten and loosen it a few times. No need to go all hulk hogan on it, just tighten it up. Do NOT put thread tape or anything else on there except maybe some light oil like PB Blaster or WD40.
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#13 | |||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,940
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
Quote:
Gary
__________________
'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
Quote:
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#14 |
Senior Member
![]() Join Date: Jul 2001
Location: Wellington, Ks
Posts: 10,184
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
Anytime I take the line loose from the carb I always use a 1" open end to hold the carb fitting tight to the carb and then use ONLY a flare or line wrench to tighten or loosen the fuel supply line fitting. Using a common box end is a good way to "round off" the flat ends of the nut fitting. If by chance the carb fitting is cross threaded or such most auto parts stores used to carry a repair fitting. Not usre if they still do, haven't had a problem for a long time since I starte doing as above when taking fuel lines loose. Good luck with your fix.
__________________
1971 Chevy 1/2T 4x4 LWB 350 V-8 Was sm465-now 350TH/np205 Tilt, Tach, Towhooks Original Truck AM/FM Wellington, Ks |
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#15 |
Registered User
Join Date: Feb 2003
Location: Santa Ana, CA
Posts: 2,191
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
If you are only running a fuel filter between the fuel pump and carb, you definitely need to add one between the tank and fuel pump. All that crap that clogged your filter had to scrape and grind its way through your poor fuel pump. Add another filter before your pump (and get rid of the one between the pump and carb) and your fuel pumps will last longer.
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#16 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
you could have bought a premade lenth of tubing probally for less than half of what you spent on those fittings hoses and clamps // and bent up yourself a nice safe fuel line rather than setteling for the firetrap fix
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#17 | |
Registered User
Join Date: Jul 2010
Location: Leesburg, VA
Posts: 420
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
Quote:
I need to mock up a new hardline between the fuel pump and carb on my 230 but have been afraid to because the guy at NAPA said that the fuel fittings I need aren't available any more, so I've been worried about screwing up the ones on the truck now and so haven't done anything. If you guys can help me find the correct fittings for a 3/16" fuel line, I'll be a happy camper. Thanks!
__________________
Curt 1970 C/10, 250 L6 with Rochester BV carb, SM465 4 speed, 3.73 open rear |
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#18 |
Registered User
Join Date: May 2011
Location: Northern Calif.
Posts: 3,689
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
I'm thinking Classic Parts has your hardline, carb to pump, for around $20.00. Hope you get it all worked out.
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#19 |
Registered User
Join Date: Mar 2011
Location: Texarkana, AR
Posts: 123
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
Can someone please help this non-mechanic (me!) out and explain the difference between an inverted flare fitting and a straight fitting?
It has been a few years since I piped mine but best I remember the lines are flared with a standard plumbing flaring tool. The difference is the nut has exposed male threads with a recess for the flare that screws into the female fitting of the fuel pump while plumbing flare nuts and fittings are female threads inside the nut. Also, the fittings for steel pipe are different than the fittings for copper pipe, I could be wrong but I am pretty sure that the fittings for brake lines are also the same fittings for fuel lines since both are steel lines.
__________________
No one ever fell to the top of a mountain. When asked why I work on old trucks, I tell them: Been married 27 years, sons are pretty much gone, don't like the wife anymore and don't have a girlfriend, so, gotta do something, the old trucks are cheaper and less drama than a girlfriend - ![]() |
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#20 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Today was the day they let us go at work, now it feels like my truck is jumping i
I'll have to argue with the fuel filter location comment posted above.
Placing one between the tank and pump lowers the pressure in the fuel line, which in turn lowers the boiling point and can cause or worsen vapor lock (boiling fuel). |
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