• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Tips
Tips

Dual Weber Carbs

Share this page

KVH

KVH

Obi Wan
Silver
Country flag
Offline
A friend is having trouble adjusting his Weber Carbs. He says that turning the air/fuel mixture screw on one side does absolutely nothing, whereas the other side responds.

After he gets the air/mixture correct, he'll syncronize them, but can't seem to get that far.

I know SUs pretty well. But nothing about Webers.

Can anyone help on this? Thanks
 
sound to me like maybe one of the seal in the air mixture screw is bad. i dont want to here this becuase i have a set of 38 dcoe i Picked up a Carlisle that going on the Midget this weekend. and i have had VW with duals and hated them.
 
I never had any problems with my dgv's once I re-jetted them.

try this: https://www.carburetion.com/Weber/adjust.htm


/bcforum/images/%%GRAEMLIN_URL%%/troll.gif
tr18.jpg
 
If we're talking DCOE's that sounds like the ~classic~ bent spindle symptom. With a UniSyn or similar device, check/balance air draw between the two, and between the two throats of the individual units. If one side of one carb draws more than its twin, you've found a shaft that has likely been tweaked too hard. The other cause can be a bad shaft bearing seal. Hope for the seal problem. /bcforum/images/%%GRAEMLIN_URL%%/wink.gif
 
Back
Top