Jump to content

DB carburetor adjustment.

Steve Suttle

Recommended Posts

If you are using an aftermarket electric fuel pump, you will have to regulate the pressure down to approximately 1 pound.

If you are using the original vacuum tank, make sure that the vacuum inlet valve to the vacuum tank is not leaking fuel directly into the intake manifold.

If neither of the above solves the problem, remove the bowl cover, remove the float, and test for leaks. The float may be heavy with fuel; or if the carburetor has no fuel, the float may be tested by submerging in hot water. The hot water will pressurize the air inside, and any leak will blow a stream of bubbles.


Link to comment
Share on other sites

For the record, the car is equipped with a S-W vacuum tank.

And also for the record a 360 degree twist of that knurled knob did the trick.

I also set the idle down a bit and the car actually runs smoothly for the first time since I bought it a year ago.

Thanks as always for the help.

Now, on to the running boards (I've never worked with linoleum before!)

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...