602

Elton Fancher · Dec 1, 2015

My 602 gas will run awhile then frost up where carb and manifold meet, little later will run out of gas. Have to blow through line and get gas flow again then it will run awhile and repeat. I have had carb apart and cleaned rust, installed a clear filter inline which never fills up. I have had the valve out of the tank and drained a couple gallons of gas that flowed freely and took valve apart and cleaned it. I just cannot figure it out.

mmfan55 · Dec 1, 2015

Frosting up should not be a problem. Are you blowing through the fuel line backwards, back into the tank?? You may have a piece of cap gasket or other item floating around in the tank that gets pulled back over the outlet hole. You can take out the tank fitting, find a piece of pipe that fits snug in it, cut it off at an angle an inch or so long and cut or drill holes or gaps in it. Ample fuel flow even if something goes against it.

J Bycraft · Dec 3, 2015

Carb icing is fairly common with gas engines having a long induction tube. The condition seems much worse with modern gasohol. Many aero engines are afflicted, so much so carb engines are provided with a carb heat control. The problem is not fuel flow but ice formation at the throttle just downstream of the venture. One solution is to run the engine up, then shut it off until heat migrates down the induction tube, another is to provide heat to the induction tube via a copper tube circulating hot water wound around the induction tube. Carb heat is not viable for tractors as it involves ingesting hot unfiltered air from a muff around the exhaust stack. Humidity is a big factor in ice formation

Elton Fancher · Dec 4, 2015

I have the same problem summer or winter, just gets really wet outside in the summer.

J Bycraft · Dec 6, 2015

carb icing is generally a bigger problem in summer than winter, most because the air is much more humid. It's not the ice on the outside that kills the engine but the ice on the nozzle, the butterfly and the venture.

J Bycraft · Dec 7, 2015

This program keeps misspelling the word v e n t u r i as In part 10P1052.

602

Elton Fancher

Member

mmfan55

Member

J Bycraft

Member

Elton Fancher

Member

J Bycraft

Member

J Bycraft

Member

Similar threads