Edelbrock Carb 1406 Binding - The 1947 - Present Chevrolet & GMC Truck Message Board Network

77ChevySharkBite · 10-23-2013, 09:32 PM

Hey guys,

Upon setting up the carb I noticed at full throttle the secondary valves were not opening. You have to manually actuate the secondary values by either pushing down on the choke linkage on the right side of the carb, or pulling up on the inner most bracket to free the secondary valve tab.

Has anyone dealt with or had experience with this issue?

The part circled in blue is the choke linkage. Part circled in red is the tab we were pressing to actuate the secondary valves, which is reacted on when the choke valve is completely opened.

y5mgisi · 10-23-2013, 09:39 PM

I could be wrong, but i believe, they are set to where when the choke is on, the secondary are locked out. And aren't the 1406 a vacuum secondary unit?

77ChevySharkBite · 10-23-2013, 09:51 PM

How would I be able to tell if its secondary vacuum?

77ChevySharkBite · 10-23-2013, 10:06 PM

I just figured out what was going on with it.

With it being an electric choke I wasn't thinking until you had suggested it, that I won't be able to have WOT until my carb or truck has warmed up and so my friend called his dad and we confirmed that's how it works indeed.

10-23-2013, 09:32 PM	#1
77ChevySharkBite Registered User Join Date: Aug 2012 Location: Houston, Texas Posts: 2,475	Edelbrock Carb 1406 Binding Hey guys, Upon setting up the carb I noticed at full throttle the secondary valves were not opening. You have to manually actuate the secondary values by either pushing down on the choke linkage on the right side of the carb, or pulling up on the inner most bracket to free the secondary valve tab. Has anyone dealt with or had experience with this issue? The part circled in blue is the choke linkage. Part circled in red is the tab we were pressing to actuate the secondary valves, which is reacted on when the choke valve is completely opened. __________________ Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal

10-23-2013, 09:39 PM	#2
y5mgisi Second Chance Program Join Date: Jun 2006 Location: Portland, OR Posts: 2,642	Re: Edelbrock Carb 1406 Binding I could be wrong, but i believe, they are set to where when the choke is on, the secondary are locked out. And aren't the 1406 a vacuum secondary unit? __________________ 90 Chevy Suburban 2500 5.3 swap/th400/np241/14bltSF/10blt. 77 C20 crew cab Silverado. 396/th400. In work.

10-23-2013, 09:51 PM	#3
77ChevySharkBite Registered User Join Date: Aug 2012 Location: Houston, Texas Posts: 2,475	Re: Edelbrock Carb 1406 Binding How would I be able to tell if its secondary vacuum? __________________ Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal

10-23-2013, 10:06 PM	#4
77ChevySharkBite Registered User Join Date: Aug 2012 Location: Houston, Texas Posts: 2,475	Re: Edelbrock Carb 1406 Binding I just figured out what was going on with it. With it being an electric choke I wasn't thinking until you had suggested it, that I won't be able to have WOT until my carb or truck has warmed up and so my friend called his dad and we confirmed that's how it works indeed. __________________ Korwin 77 C10 Silverado Sharkbite LWB Build 67 Chevy C10 Frame Off 06 Dodge Magnum 2.7v6 aka swag wag! 2010 Honda Accord 2.4I4 DD aka Liquid Metal



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