4bbl won't close

[chargd72]

I have the opposite problem than Yvesp does.  I can't get my Secondaries to close.   I have an Eddy 1405 sitting on my 400.  It a 600cfm manual choke and I believe it has mechanical secondaries.  I can easily open and close them by hand so there doesn't seem to be any obstruction.  They just kind of hang open.  Any ideas?

[firefighter3931]

Maybe the return spring is too weak ? Throttle cable not adjusted properly ? 

Make sure the linkage isn't binding up. Also check the base gasket because those have been known to cause binding issues. 


Ron

[chargd72]

Thanks Ron.

Just put on a new return spring on the throttle.  How would the cable not be adjusted properley?  I'll check the linkage and gasket. 

So if I take the carb off (no throttle cable or return spring), should it theoretically close?

[Ghoste]

Theoretically.

[firefighter3931]

How would the cable not be adjusted properley?  I'll check the linkage and gasket. 

Aftermarket carbs are universal but there is specific linkage adapters that must be installed to maintain the proper pedal ratio. Without the adapter you will never get the throttle blades to fully open or fully close....at the same time. 

Edelbrock makes an adapter for the Mopar throttle cable assembly....does your carb have this part installed ? 

http://www.summitracing.com/parts/EDL-1481/?rtype=10

Yes, the throttle blades should be fully closed with the carb off the engine....and on the engine with no linkage installed as well as properly adjusted linkage.


Ron

[chargd72]

Thanks, I'll give that a look.