1970 f250 stalling when cold

Reply Subscribe

Thread Tools

Search this Thread

Dec 1, 2015 | 10:04 AM

Goofy1129

Thread Starter

Senior User

Joined: Aug 2011

Posts: 182

Likes: 0

1970 f250 stalling when cold

I have A 1970 ford F250 with a 360 2bbl that when you start it in the morning it willl stall out unless you keep your foot on the pedal. the previous owner said he installed the new carb about six months ago.I know that there is at least one piece missing and it looks like a barrel with a small copper or gold color tube coming out of the top of it that is supposed to press against the linkage anybody know what this part is and were i can get it.

Dec 1, 2015 | 01:27 PM

70FE250

Senior User

Joined: Oct 2015

Posts: 445

Likes: 0

From: Bismarck, ND

Auto or manual choke? Carbureted engines are very cold blooded in the morning and will usually require a foot on the gas for a little while

Dec 1, 2015 | 01:45 PM

Goofy1129

Thread Starter

Senior User

Joined: Aug 2011

Posts: 182

Likes: 0

Quote:

Originally Posted by 70FE250

Auto or manual choke? Carbureted engines are very cold blooded in the morning and will usually require a foot on the gas for a little while

Automatic choke

Dec 1, 2015 | 02:08 PM

67xr7kat

Senior User

Joined: Nov 2015

Posts: 137

Likes: 1

From: FL & NY

There should be a stepped cam that the idle speed adjustment screw makes contact with. When the engine is cold and the choke is closed, the cam should move up a step or two.

Dec 1, 2015 | 02:11 PM

Goofy1129

Thread Starter

Senior User

Joined: Aug 2011

Posts: 182

Likes: 0

Quote:

Originally Posted by 67xr7kat

There should be a stepped cam that the idle speed adjustment screw makes contact with. When the engine is cold and the choke is closed, the cam should move up a step or two.

What does this step cam look like and where is it located on the carb

Dec 1, 2015 | 06:39 PM

JEFFFAFA

Hotshot

Joined: Mar 2013

Posts: 14,255

Likes: 199

From: Phoenix, Az.

Quote:

Originally Posted by Goofy1129

What does this step cam look like and where is it located on the carb

Just to the right of the main carb body in the left, lower part of this pic. As stated above carbed engines are cold blooded unless the choke is adjusted correctly. 1st thing I'd do is see if the fast idle speed is correct. 2nd, figure out if the choke flap is opening too far or not enough on cold engine start up.