initial startup

[1971GTO]

Installed the rebuild yesterday.  Initially I didn't want to have a bad mishap so I left the coil lead off; also I didn't expect to get fuel to the carb so fast.  Choked, I cranked for 2 bursts of about 4 seconds each, noticing that gas is coming up out of the bowl vent to the air cleaner.

I then tried to fire up with the coil wire on a burst or two.  No kick over, still gas coming out of the vent.  After a while I just shut the hood to think this situation over.

Today, I'm hesitant to do too much more than the completely obvious with it, and will re-check some things, but stil...................

Is it simply flooded?  Why would gas be coming up/out of that front vent?

I don't wanna' be cranking, cranking, cranking today when I shouldn't and I'm hurting things more.

Please save me here guys with ideas/solutions!  Cliff?

[Schurkey]

I cranked for 2 bursts of about 4 seconds each, noticing that gas is coming up out of the bowl vent to the air cleaner.

I then tried to fire up with the coil wire on a burst or two.  No kick over, still gas coming out of the vent. 

The needle 'n' seat is not controlling the fuel level in the bowl.

1.  Float sunk?
2.  Needle 'n' seat defective or dirty?
3.  If this is a Holley, is the O-ring on the outside of the needle and seat assembly defective?

[1971GTO]

Thanks,

I haven't done any thing, except turn it upside down a time or two since getting it back from Cliff though.  Mostly it's sat on a shelf.

What's a solution to move forward.............Cliff?

[Cliff Ruggles]

We test all carbs set-up here on a real engine with 7psi fuel pressure for 30 minutes prior to shipping.

If possible crank the engine without fuel flow to the carb until the engine fires, and runs the carb empty.  Allow it to re-fill on the next start-up.  This should clear anything that could be stuck between the needle/seat.

It sounds like something is stuck in the needle/seat assembly not allowing it to control the fuel level....Cliff

[1971GTO]

Will try at earliest convenience, could be this next weekend though.

Appreciate the followup Cliff,
Anxious.

[Cliff Ruggles]

That's about the worst that could be wrong.  It's possible a small peice of debri got into the needle/seat assembly when we installed the fuel filter housing and new filter after the test run.  We use a different filter housing with an AN fitting on it for the running test.  Shutting off the fuel supply and allowing the carb to empty, then re-fill will usually clear anthing that found it's way into the needle/seat assembly....Cliff

[1971GTO]

Just fired up!

This fix worked as you specified!  Runs smooth at idle, will do the regular tune up re-checks here today and get some clean fuel/go for a spin.

Cliff, only trouble seems to be a real tight/sticky choke, had to manipulate it by hand initially, and the stove won't open the choke flap up; like it's not strong enough.

Appreciate it,
Mike.

[Cliff Ruggles]

Use some WD-40 or light oil on the choke fast idle cam and related parts.  Make sure the throttle is fully depressed wo the linkage on the primary throttle shaft moves out of the way to allow the choke to fully employ. 

We don't have any way to test divorced chokes on our test engine, they have to be set up on the original application with the stock parts.  All items related to the choke require bending links to get them set correclty, aside from the fast idle speed screw.  Although somewhat primative, once they are correct set-up they work fine.....Cliff

[1971GTO]

Cliff, I think the choke flap itself is working alright; I removed the divorced choke from the manifold crossover to inspect.  When I took it off, the choke flap works fine by hand.

I think the tightness stems from the lever in that device rubbing on the side of it's metal cover; I need to add a washer to one side to keep it stood away from the side.

Should do it!

[1971GTO]

That did it, now just for some fine tuning via other threads here.

Great product you delivered to me Cliff!

Many thanks,
Mike.

[Cliff Ruggles]

Good news!  Just in time to start enjoying some nice weather, although it dipped into the 30's here last night....YIKES!.....Cliff