Matty's first 1st Gen

Ok, i just removed my air pump acv, and AAB, and it was running ok, a little hard to start but it was ok, now the idle is screwed up, i boosted the idle to about 1500 to keep it going, and i took a look in the carb, and the secondaries are closed but (from the passanger side) the right secondary is pouring gas on to the closed butterfly. Anyone got any ideas?

Amagi82

did you block the holes, cap the lines, etc?

Matty's first 1st Gen

yea i capped everything, and made my own block off plate, it has a good seal, after i turn the car off, i can see a small puddle in the secondaries.

Metallic_rock

that's wierd, mine does the same thing... not sure what it is, though. drives just fine, though. Probably not something I want to keep happening,though. Any ideas anyone?

Matty's first 1st Gen

i think it was a real bad effect on gas milage aswell because more gas is being dumped into the closed secondaries than the primaries

REVHED

What's the float level like in the right float bowl? What about fuel pressure?

Gregs

i may be having the same problem.. cause my mpg's are bas...

somewhere in the range or 10-11mpg

-greg

Matty's first 1st Gen

would the floats have anything to do with the nest?

Matty's first 1st Gen

ok, the car is seriously flooded, and when i crank the engine, and stop, and check the carbs, both the primaries and secondaries are being filled, there was like 1 or 2 cm deep in the secondaries.

i did also just change the fuel filter before this happened, but that wouldn't have an effect right.

MosesX605

I seem to recall Sterling talking about a float bowl solenoid. During your rat's nest removal, did you unplug any connectors from the bowl area? That could cause flooding. Do a search of all of sterling's posts. He is very knowledgeable about these carbs.

Rx7carl

I already advised him on the solenoid thing. He may have accidentally unplugged it. And I asked him to check the float levels. If its been sitting, they may be sticky.

Matty's first 1st Gen

the solenoid is fine, but my floats are messed up, i don't see the needle at all.

any easy way to fix this, can anyone give me a descriptrion on how i can unstick them, with out too much trouble.
I tried to unstick them with a screw driver but it didn't work

Rx7r4c3r

I have the same problem. Its to do with your purge valve. I have the same problem. I think its the way you got your purge valve hooked up. I followed the tutorial on mazspeed. With the purge valve stuff d/c and everything capped of it doesnt do it. check it out and let me know.

Randy Nix

I've had this problem. It was caused by floats sticking. Fix it! I had a nice little fire because of it.

enigma32

I also had the same problem, caused by sticky floats.

(but as we've been reminded, don't re-adjust the floats-- just unstick them =)

Matty's first 1st Gen

Just in my defence, and after reading stearlings post, This was a very old post from 3 months ago, and i have learned alot since then. I had found out that my floats were all stuck and out of wack, So i took care of them, end of story, Took about an hour or two, and i feel like an *** for making such a big deal about it. Haha, anyways, thanks all i gotta say.

Matt

Rx7r4c3r

weird cause for me it only does that with the purge valve stuff hooked up. Without it doesnt stick. Btw I have a 1980 rx7 with a newer 81-83 engine in it. I dont have a charcoal canister on the side of the engine bay, mine is ontop of my carb. I hooked up my fuel vent line from my firewall to my intermediate housing. Maybe thats my problem... I will check it out tomorow.

Sterling

Rx7r4c3r-

I think that your float bowl solenoid is not hooked up, or not working.
To be certain, you can take a wrench to it, and you'll find a plunger inside with a tiny spring. Simply remove the plunger and spring, and reinstall the valve body to cap off the brass bung where it's threaded into. (Or put a stubby bolt in there with a gasket, but it has to be perfect...why bother?)

The carb would then be vented all the time.

I think what happens with a carb that has no vent is that if a needle sticks at all, the bowl fills all the way up with fuel, and the air is forced out through all the air jets. I believe it continues to flood due to simple siphoning action as the fuel dribbles out the booster venturis. When it's at that level, it's blocked off the air jets, and they don't act as vents to the system. But initially I think that a needle has to "stick" a bit for that to happen.
I'm guessing, and I can't seem to find it in any of my books.
It puzzels me because one would think that the floats would be just as bouyant and close the needles even more so if the bowl was filled with fuel.

The_7

they would be pushed up but if they were stuck in the first place, wouldnt they stay stuck, letting more fuel in?

Rx7r4c3r

I figured out the problem, I hooked up my fuel vent line from my firewall to my intermediate housing. When I do that the secondary's overflow when you turn the car off. I have a 1980 model with the charcoal canister in the aircleaner cover. Matty see if your fuel vent line is hooked up to your intermediate housing. Peace