Carburetor issue

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Feb 7, 2012 | 06:19 AM

3414

Thread Starter

Elder User

Joined: Jun 2008

Posts: 693

Likes: 6

From: N E Ohio

Carburetor issue

OK, I started up one of the trucks the other day, and even after it was warmed up, with the choke wide open it was running very rich, to the point that I had clouds of black smoke coming out of the muffler and would flood out at low idle. Last time I ran it, it ran well.
Mixture screws were the same as before, and nothing else was changed.
Anything obvious to look for before I start disassembling the carburetor to look for somthing amiss?

Truck is 1960 F600, 292 V8, stock Holley 2 barrel carburetor with manual choke.

Feb 7, 2012 | 08:48 AM

OverReved

Senior User

Joined: Jan 2007

Posts: 191

Likes: 1

Sounds like you had a float problem. Float may be stuck or have a hole in it that has let gas inside it. Needle and seat assemble may be stuck open for some reason.

Feb 8, 2012 | 05:16 AM

Walston

Cargo Master

Joined: Aug 2004

Posts: 2,575

Likes: 36

From: Greenville, SC

If it has been sitting for a while, you may have some bad gas that is causing the float to stick. Might try running some Seafoam through it, it will likely free up what ever is sticking.