Carburetor adjustment

Carykong · Dec 27, 2009

all good suggestions here. I have a Case VAC with marvel carb,no fuel pump. I have had problems similar to what you describe. In my case,it was blocked fuel flow from gas tank to carb. I hope you have an inline fuel filter from tank to carb? Disconnect fuel line from carb and simply observe fuel flow by gravity. Should get a steady flow. If not,blow your fuel line or replace. Also,check for good fuel flow from tank to fuel line. My old fuel tank had chronic rust flecks. In line fuel filter should be checked and cleaned/replaced with any old gas tank. Good luck

Carykong · Dec 27, 2009

also, make sure your gas cap has a clear vent

Soundguy · Dec 28, 2009

That ford carb setup should have a minimun of 2 screens and a sediment bowl.

soundguy

tree grower · Jan 17, 2010

Update. Before Christmas I discovered a leak near the sediment bowl, so I shut off gas at the tank. Brought it in today, removed sed bowl, cleaned it well, added another copper washer, reinstalled --no leak. Removed distributor, disassembled, cleaned it well, installed new points and condensor, reinstalled. Started tractor, still needed choke. Tweaked idle screw and timing to get it settled down, then turned power jet out about 1/2 turn and that solved the problem. Runs like a champ. Thanks for all the suggestions.

CLL1952 · Nov 22, 2015

11/22/15 I have a 1952 Case Vac. Gas pours out of the carb when the choke is closed. The only way it will start is close the choke and push in the choke real fast. I rebuilt it, but could get the main jet out and set the new float 1/4 inch and put it back together. Still have the same problem. Do you think I have the choke adjusted wrong or the main jet plugged or would ther be another problem.
LL

CLL1952 · Nov 22, 2015

11/22/15 I have a 1952 Case with the same problem. Turn on the gas, pull the choke out and on the second crank I push the choke in real fast and it starts. If it don't start gas run out the carb throat. I rebuilt the carb, but did not get the main jet out, so I blew it out with an air compressor, set the float at 1/4 inch and the same problem. I put a new float in. Maybe I don't know how to set a float.
LL