After countless hours tuning, timing and fabricating makeshift superchargers, I finally have ascertained that my second barrel is not opening in any way shape or form. This is extremely exciting in that it explains a lot of my horsepower woes, but frustrating because I can't make the second barrel work without me being under the hood like the little dinosaur in the Flinstones' radio, making it work manually. Oh but when I did twist open that second barrel she let out a mighty roar that I haven't heard in 5 years owning the rig!
My first question is, what is supposed to open the second flap? I gotta think it's the red stickered diaphragm but that brings up two new problems:
1. The secondary diaphragm doesn't actuate under any RPM.
2. Even if the diaphragm was working, I can't see it hooking up with the shaft in any way that would cause it to turn. The two little tabs seem to be oriented so that when I manually contract the diaphragm, the tab and spring just rotate around the shaft, never reaching the stationary tab that would rotate the shaft. I found a pretty detailed picture of another carb and mine appears to be oriented the same way. On a side note, I forced them into an orientation I thought made sense and it caused the engine to refuse to work at all.
So is my secondary diaphragm faulty? And if so, how would it actuate the second barrel even if it was working?
Then again, maybe this is my chance to convince wifey that we need a Weber
My first question is, what is supposed to open the second flap? I gotta think it's the red stickered diaphragm but that brings up two new problems:
1. The secondary diaphragm doesn't actuate under any RPM.
2. Even if the diaphragm was working, I can't see it hooking up with the shaft in any way that would cause it to turn. The two little tabs seem to be oriented so that when I manually contract the diaphragm, the tab and spring just rotate around the shaft, never reaching the stationary tab that would rotate the shaft. I found a pretty detailed picture of another carb and mine appears to be oriented the same way. On a side note, I forced them into an orientation I thought made sense and it caused the engine to refuse to work at all.
So is my secondary diaphragm faulty? And if so, how would it actuate the second barrel even if it was working?
Then again, maybe this is my chance to convince wifey that we need a Weber