Re: frosty the carburetor

Posted by Bob M on December 26, 2000 at 06:30:24 from (172.138.59.249):

In Reply to: frosty the carburetor posted by jeff on December 25, 2000 at 21:23:40:

Jeff - I experience the same problem in damp weather - most severely on our 6 cyl Olivers, but occasionally with the Farmalls as well. A few things I've found that help...

1 - Make sure you've got a good working thermostat installed. 180 deg or 192 deg is preferred over the factory spec 165 deg.

2 - Use a winter shield (or a plastic seed bag) to block off the air flow thru the radiator. All you need is a few square inches of opening at the grille. This results in much warmer air being blown back toward the carb/air cleaner. A homemade tin shield to deflect heated air from the fan back toward the carb will help too.

3 - Dump a bottle or two of dry gas in the tank before each fillup. Dry gas with isopropyl alcohol seems to work best. It doesn't stop icing outside the carb but seems to prevent it from forming inside.

4 - When starting a cold tractor, run it up to 1/2 throttle or so soon as oil pressure shows on the gage. Don't slow it back to idle until the engine's fully warmed up. This seems to hinder ice formation on the throttle plate and idle passages.

If the carb does ice up, DON'T use a torch to warm it! I've seen the results of using a torch to warm a slightly leaking carb - it's not pretty! A hair dryer, or a 500 watt halogen light shined on the carb at close range is a better way to go.

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