3x2 problem
Thread Starter
Racer
Joined: Jun 2006
Posts: 413
Likes: 3
From: Frankfort Illinois
3x2 problem
ok fellas...started the car for the first time this year since putting her away for the winter and came upon a few issues. First the center carb is pouring gas out of the front by the accelerator pump and second as the gas pooled onto the manifold I noticed bubbles bubbling up from between the block and the manifold. Was thinking these might be problems that fix themselves once the car runs for a bit and the juices get flowing or....NOT???....thoughts? The weather is going to suck here in Chicago for the next couple days I’ll try and get the car back out and start it up again and see what happens. Thanks. Jim
Le Mans Master
Joined: Nov 2015
Posts: 7,444
Likes: 2,623
From: Really Central IL Illinois
Assume they are Holleys. Stuck float needle on the center carb. Tap it with a plastic hammer or plastic handle of a screw driver. If that doesn't do the trick, you may have to remove the needle and seat and flush them with carb cleaner or replace the assembly.
The bubbles may just be the boiling of the fuel, not air escaping from the intake joint. Fix the needle / seat leakage problem and then troubleshoot the manifold gasket with a light oil or something that won't boil.
The bubbles may just be the boiling of the fuel, not air escaping from the intake joint. Fix the needle / seat leakage problem and then troubleshoot the manifold gasket with a light oil or something that won't boil.
Last edited by R66; Mar 24, 2018 at 02:18 PM.
Drifting
Joined: Jul 2005
Posts: 1,977
Likes: 194
From: Putnam Valley, New York. Amateur Radio Operator K2NS
Leaking Holley
Typical problem after winter storage. If your Holley has bolts with screw heads holding the float bowl on, get a 90 degree offset screwdriver and slightly snug up the screws. If the bolts have hex heads, tighten them slightly with a wrench. If that does not stop the leak, then, with an offset phillips screwdriver, tighten the 4 screws that hold the accelerator pump housing onto the float bowl. With a little patience, this can be accomplished without removing the carb from the manifold. I have found that this works 90% of the time---If it doesn't, you're in for a rebuild.
RON
RON
Last edited by rongold; Mar 24, 2018 at 04:21 PM.
Melting Slicks
Joined: Apr 2003
Posts: 2,823
Likes: 484
From: Florida
I recently started mine, with a Holley 4 BBL, after sitting almost a year. Gas appeared to be coming from the accelerator pump. But, after closer inspection during clean up it was leaking from a bowl screw. Snugged up the screws, has nylon screw seals, leak stopped.
Safety Car
Joined: May 2014
Posts: 3,783
Likes: 655
Be very careful tightening the bowl screws because they will strip in the cheap Holley castings, (not to much). I have found the needle will dry out and let fuel pass until it gets wet with gas and begins to swell up.
Burning Brakes
Joined: Mar 2001
Posts: 1,203
Likes: 147
From: dalton ma
Happened to me many years ago also on the middle carb and the cause was a faulty float. It developed a leak, filled with fuel and sank causing the the needle valve to not shut off the incoming fuel.
