Quote:
Originally Posted by wbnapier
On a freshly restored tri-power I had a a similar problem after opening the outboard carburetors.
I had to add a heavier duty torsion spring (from a 4bbl) on the rear carb so that the outboard carburetor butterflies would close completely. You need sufficient spring pressure to return all the butterflies to idle.
Mike told me I can tweak the lighter duty spring to get some more strength out of it too.
|
I did the hand test to feel for any suction on the secondaries and did not feel anything, I did re-seal them with DAG about a year ago. I might have heavier duty springs to be extra sure though.
Idle vac is also about 17in/hg, which seems too good for a major vac leak. Maybe not?