Re: [T3] Carb Problems

[Steven Ayres <comwest@att.net>]

<x-flowed>StevenC=> I think I've fixed the flooding problems she was having by 
installing
=> slightly thicker gaskets under the fuel pump to drop the pressure a 
bit. 

It's possible that this did something that seems positive, but it 
amounts to creating a second problem to mask the first. Check your float 
needle valves: the fiber washer under the valve should be unusually 
thick. These gaskets set the proper position for the valve, and they are 
frequently missing from the carb kits. If the gasket is too thin, the 
carb will overflow.

Stock fuel pressure for a dual-carb Type 3 is 5psi against the stock 
Type 1 3psi. You won't notice the difference until you're running hard 
up a long hill.

=> the left idle mixture screw makes no difference to idle speed or 
engine running.

You may have an air leak on the left side. Check for a loose jet cap, a 
crack in the crossover joint rubber, like that. The needle valve or 
another part of the idle circuit may also be clogged with crud. 
Whatever's causing this is probably also causing your acceleration 
problem, putting your carbs out of balance. Are you using a carb sync 
measurement tool of some sort? Which procedure are you following?

Steven Ayres, Prescott AZ
'66 KG1600

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