Joined: 10/24 8:30:09 From Soquel California Posts: 2 Rebuilt Stromberg AAV-26 model 40-10D 1940 356 engine. Thanks for the info on spacer block, found one and replaced. Completely cleaned and rebuilt carburetor with kit from Kanter. Runs much better know with the exception of major hesitation on acceleration from stop. Accelerator pump working well lots of gas, idle speed up so must be a problem with rebuild. Hard to tell which parts are correct as kit has pieces for many models, the one I have is a Stromberg AAV-26 40-10D. As carburetor worked poorly when I purchased recently may not have been properly rebuilt by previous owner. The problem appears to been in the accelerator pump or power pump section. Does anyone have know the correct rebuild parts for these?
Just to let everyone know, problem solved. Diaphragm in fuel pump was weak and was also sucking in air which was was keeping fuel level in the carburetor low. This resulted in low fuel volumn being pumped by accelerator pump.