Why are the idle tubes on a QJET called Idle?
The Qjet is called names, because the factory had to calibrate for hundreds of applications, and most were not performance. So they do not work for performance without drilling a couple holes.
What causes a gas leak in a carburetor?
This can be caused by carburetor vacuum at the venturi drawing fuel from the main discharge. The main discharge has a check ball and spring on top of the check ball. Gas can leak by the check ball if it isn’t sealing.
Why does my Quadrajet idle tube have no drizzle?
I think there are other factors involved in idle quality and the main circuit the “drizzle” that just the idle emulsion tube orifice and the channel restriction tube orifices. With my 78 400 and a [email protected] cam the stock 78 carb had the “drizzle” from kicking in the main circuits.throw a 73 carb on it and presto no drizzle and better idle.
Why does my Rochester 2 jet have 2 gaskets?
Does the seat have 2 gaskets by mistake, or are the gaskets damaged, or is the float bowl cracked around the seat. Any of these problems would allow the the fuel to leak past the needle & seat with nothing to stop it?
The Qjet is called names, because the factory had to calibrate for hundreds of applications, and most were not performance. So they do not work for performance without drilling a couple holes.
Where does idle fuel come from on a Honda Accord?
Idle fuel is normally delivered out of the small idle ports near the throttle plate. You may see fuel dripping from the main discharge nozzle (middle of secondary venturi). The cure for this includes drilling some vent holes from the float bowl area into the air passage and installing insulator blocks under the carbs. PMO sells both solutions.
This can be caused by carburetor vacuum at the venturi drawing fuel from the main discharge. The main discharge has a check ball and spring on top of the check ball. Gas can leak by the check ball if it isn’t sealing.
I think there are other factors involved in idle quality and the main circuit the “drizzle” that just the idle emulsion tube orifice and the channel restriction tube orifices. With my 78 400 and a [email protected] cam the stock 78 carb had the “drizzle” from kicking in the main circuits.throw a 73 carb on it and presto no drizzle and better idle.