Edelbrock carb question

[gbarber]

I have been fighting a vacuum leak for a while now, and I can only find two sources for the leak.

This is the passenger side of my Edelbrock 1405 carb. If I spray carb cleaner through a straw onto these two linkages, I get a definite change in my engine idle. When sprayed onto the rear linkage, the idle increased. When I sprayed it onto the front one, the engine nearly died.
Is this normal? I dismantled the rear one a little. I didn't see any type of seal or O-ring to replace. Should there be one? A checked the exploded view of the carb from Edelbrock, but I couldn't find a view showing this side.
Any help is appreciated.

 

[tos]

If your engine nearly dies while spraying cleaner around the linkage then you have a substantial vacuum leak and no it is not normal. I'm not real experienced in edelbrock bits and pieces but there should be something there to seal like a fiber compression type washer or a plastic bushing. Probably not an o-ring. They typically arent used in a rotational type application. Someone here can give you more info though i'm sure

 

[gbarber]

Thanks for the info

 

[68torinogt]

id say pitch the edelbrock and get a demon or a holly since i havent had anything good happen with an edelbrock

 

[gbarber]

I think I agree with your opinion. I just wish I had more cash.

 

[68torinogt]

i have only bought demons after i worked on about 10 edelbrocks



i still havent even tuned the demon 3 years later. it is just how it came out of the box

 

[jikelly]

I've had the edelbrock/carter style carbs on my stang for over 10 years and I've never experienced that problem.

There is no oring, gasket, or seal that goes in there on that linkage to my knowledge.

How long you had your carb?

 

[5.0ina66]

id say pitch the edelbrock and get a demon or a holly since i havent had anything good happen with an edelbrock

Keep in mind summit no longer carries demons due to the return rate. I wouldn't buy a new or newer demon for the life of me. The older ones were phenomonal though. If you don't go edelbrock, go holley IMO.

 

[68torinogt]

mine was bought a few years back and barry grant himself helped me with some minor tuning on the power tour

 

[GoinBroke]

I just installed a BG 750 speed demon on a new engine and upon filling it for the first turnover gas ran out of the bottom of the carb faster than it was pored in the top. Upon inspection both the bowls were not torqued from the factory. I torqued them and since it's doing OK so far but that did leave a terrible first impression.

 

[gbarber]

I have owned this car for 3 years. The Edelbrock was on it when I bought the car. I rebuilt the carburetor, using the Edelbrock 1477 rebuild kit, after I rebuilt the motor shortly after I bought the car. I don't recall the rebuild kit addressing the area where I have a vacuum leak. I'm not sure when the previous owner originally purchased the carb.

 

[jikelly]

That kit doesn't have any parts that go into those shafts. Heck I only ever removed one once to switch over to an electric choke. I'm sure you could pull the shaft out and install an o-ring or use some kinda something to seal that leak off.

It might be a good idea to contact edelbrock and ask about the problem you're having.