Okay so you're right about that, it doesn't look like i have it set up correctly. And apparently I'm missing the choke piston alltogether. Just have the little bracket it goes onto. The line from the VSV that should go to the EGR is hooked up to the fuel pump. What should be hooked to the fuel pump? Hopefully I can get the choke piston. What does that do? This thing was missing so many random little valves and junk when I got it, how do you loose these things?
The first picture shows the line from the VSV to the fuel pump and the second shows the whole messy set up.
PS how did you put the picture in the post? My photobucket won't show up when I try to do that on this site..
I didn't have that choke piston on my other carburetor either. If it doesn't come with it, it must not need it. My zuk doesn't have the VSV for the choke piston but the replacement carb I bought DOES have the choke piston. Crazy... anyway you shouldnt have things hooked up to the VSV for the choke piston if you don't have one. The fuel pump should have A supply line from the tank, an outlet line to the carburetor, and a return line back to the tank for fuel that the carburetor doesn't use. There is a spill hole on the bottom of the pump that shouldn't be connected to anything. It's for releasing fluids if the diaphragm in the pump gets ruptured.
Connect the hose from the side of the VSV (the one next to the EGR vacuum modulator) to the EGR valve. The bottom hose to the VSV goes to the right side of the EGR Vacuum Modulator disk. The hose from the left side of the vacuum modulator goes to the Bi-metal vacuum switch valve (BVSV) on left side of the intake manifold below the carburetor. On my samurai it looks like an orangish-red plug with 2 vacuum connectors on it. The left hose connector on the BVSV is for the EGR vacuum modulator hose, the right connector goes to the Distributors Vacuum advance. The vacuum advance line has a "T" in it and it branchs to a vacuum port on the left side of the throttle body right next to the port that goes to the charcoal cannister.
Edit: ok. looking at the diagrams I have to question whether that thing is called the choke piston. I'm seeing another can called the choke piston on the rear right side of the carb, but on another source it's called the throttle opener. This can is just above the idle up piston. Whatever the thing is called above the throttle cable, it was deffinitely connected to that rear VSV on your firewall. I just don't see any definative references for it.
Last edited by Baratacus : 11-10-2009 at 11:46 AM.
Well there's a secondary actuator on the other side, so I'm not sure if that is too..Would make sense though if it makes the secondary thing go, for when you're going faster, as I can't really accelerate while in 5th gear.
Anyway, I switched up the lines and capped the line that's supposed to go to the actuator/choke piston whatever it is, and it really doesn't seem to be making a difference..Though you're definitely right about where they should be going.
Well there's a secondary actuator on the other side, so I'm not sure if that is too..Would make sense though if it makes the secondary thing go, for when you're going faster, as I can't really accelerate while in 5th gear.
Anyway, I switched up the lines and capped the line that's supposed to go to the actuator/choke piston whatever it is, and it really doesn't seem to be making a difference..Though you're definitely right about where they should be going.
the secondary actuator on the front right side of the carburetor is for the secondary throttle plate. The VSV above that is the one that has the similar conector to the vsv up by the timing cover. Those are the two that I had switched around once and it made my idle stumble a lot and my secondary wouldn't work right.
Disconnecting that VSV on your firewall shouldn't effect much of anything since it had manifold vacuum runing to both ports. It does get those 2 hoses out of the way and cleans up that rats nest of wires and vacuum lines.
Once you get all of your hoses set up correctly, then you can go through the process of calibrating your carburetor and setting the fast and slow idle, and properly set the mixture.
Yeah, you're right, the secondary is on the other side. I just pulled a carb adn intake from a parts samurai on craigslist that I plan on rebuilding and selling on ebay, and it doesnt' have that thingy either. Kinda weird how I can't figure what that thing is.
hmmm well nevermind on the fuel mixture calibration... it only tells you how to set hot and cold idle and adjusting the idle-up cam. It says that if the fuel mixture screw wasn't tampered with by some mechanic then it should be set right from the factory. You'll need an air/fuel gauge or a voltmeter to adjust that and it shouldn't be tweeked untill all of the other settings are dialed in.
I'm pretty sure my last smog check the tech adjusted it to make it pass. They can't tell you that they did it though or they risk losing their license. I ran really lean for about a week before I figured out why my exhaust was stinking like unburnt fuel.
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