Need help Edelbrock carb - The 1947 - Present Chevrolet & GMC Truck Message Board Network

nu2-72 · 11-09-2002, 06:15 PM

Just went to the neighbors. He put on a 1406 and every time the engine cranks, it pushes large amounts of fuel into the intake. Each time the fuel pump cycles, it moves an ounce or more. After 3-5 seconds the cylinders hydro lock. Any ideas as to why the float is not stopping the fuel ? Any suggestions ? It is brand new out of the box.

crazy longhorn · 11-09-2002, 06:44 PM

I would pull the top of the carb, & check float levels & also check for any machining trash & or stuck float needle . I had to reset the float levels on my 1407, as it ran rich enough that it would foul plugs(1 float was too high). You may also check fuel pressure if running a bigger pump. My guess is that it has a stuck needle tho.... good luck.....

bigjimzlll · 11-09-2002, 07:08 PM

yup..longhorns right...edelbrock says no more than 5.5 fuel pressure..i have 7 right now on mine..little rich at idle but not too bad
jim

11-09-2002, 06:15 PM	#1
nu2-72 Senior Member Join Date: Apr 2001 Location: Amazonia, Mo. USA Posts: 2,821	Need help Edelbrock carb Just went to the neighbors. He put on a 1406 and every time the engine cranks, it pushes large amounts of fuel into the intake. Each time the fuel pump cycles, it moves an ounce or more. After 3-5 seconds the cylinders hydro lock. Any ideas as to why the float is not stopping the fuel ? Any suggestions ? It is brand new out of the box. __________________ 72 3/4 4x4 350 4spd 72 3/4 4x4 350 auto 2004 Duramax Silverado 4x4 2006 Duramax Crew cab 4x4 2010 Harley Ultra Limited 2011 Harley Street Glide

11-09-2002, 06:44 PM	#2
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	I would pull the top of the carb, & check float levels & also check for any machining trash & or stuck float needle . I had to reset the float levels on my 1407, as it ran rich enough that it would foul plugs(1 float was too high). You may also check fuel pressure if running a bigger pump. My guess is that it has a stuck needle tho.... good luck..... __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

11-09-2002, 07:08 PM	#3
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	yup..longhorns right...edelbrock says no more than 5.5 fuel pressure..i have 7 right now on mine..little rich at idle but not too bad jim __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA



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