Oh I thought you were starting the challenge . lmao I never have problems with any carbs, but I know how to work on them. Q jet just happens to be my favorite. I also think way to many people blame the carburetor before finding out what the real problem was. My car ran like crap with the old carburetor so I put on brand x carburetor it still has no compression in 2 cylinders and this new carbureator doesn't work right either.?????......a challenge? If so, accepted, but I do need to know what game you want to play!! Chess, Checkers, Backgammon? I merely was stating my opinion, admittedly somewhat sarcastically, of the world renowned piece of **** commonly referred to as the Q-Jet. I am not a Self Proclaimed "Professional" as many on here are, just merely a guy with a big ass square with a big ass motor sporting a Holley Carb which hasn't given me a hiccup in over 11 years! Seems those with Q-Jets spend more time trying to fix problems than driving their vehicle. I enjoy driving mine instead of constantly fixing carb problems!!! Always brings a grin when I see a new thread involving a Q-Jet and all the wah, wah, wah. So when the next thread pops up, which it will, I will have another smart ass remark to make concerning the Q-Jet. Such is Life!!!!
Are you seeing a pattern? Fuel pump,another fuel pump,another fuel pump,another fuel pump. Now test pressure and volume if they are incorrect I bet your pump lobe is going flat. Meaning you can put 500 more fuel pumps on it and you are still going to have a problem.Proper fix,new camshaft,bandaid fix,electric fuel pump,a good one not a cheap one ,installed correctly.Then move the vacuum advance to manifold vacuum and time it correctly. There is no written timing for your combination, but that's a battle for another day. Check fuel pump pressure and volume.I have been “messing” with it for years.
I rebuilt the carburetor, installed a new distributor, installed a new starter, and replaced the fuel pump, pretty much at the same time.
when I wasn’t getting fuel, I took it to a shop. They replace the brand new fuel pump with another new one. I drove it home. A couple days later, it wouldn’t start no matter what I did. I took it back to the mechanics and they replaced the fuel pump again saying the new fuel pump was bad.
I drove it home. I drove it several times (over 20 miles).
It sat for a few days and then wouldn’t start. I primed the air cleaner and it started. When I tried to drive to the store, it would only let me use up to 1/4 throttle or it would die. I got it home babying the throttle.
…and here we are.
What do you suggest as a “good”electric fuel pump?
I still don’t see how that is going to fix the problem of it dying, as soon as it shifts into Second gear.
but before I do that, I have to figure out how I am supposed to measure the fuel pressure.