Re: burning out carbon on an IH 240?

Posted by Bob M on November 18, 2004 at 13:14:12 from (165.170.128.66):

In Reply to: burning out carbon on an IH 240? posted by Dave D on November 18, 2004 at 10:50:27:

Hey Dave – I doubt blocking the radiator to so the engine runs warmer will help much to burn off carbon. Aside from pulling the head and scraping it out, the only sure way to rid the combustion chambers of carbon is to work the engine hard to burn it out (full load, full RPM), or to spray a water mist into the carb at with a warm engine running at high idle.

However blocking the radiator to help the engine fully warm up WILL significantly reduce condensation/gasoline dilution/sludge buildup in the lube oil. Also a warm engine runs better – especially in carb icing conditions - and will burn less fuel.

And switching the hotter D21 plug will go a long way toward eliminating future spark plug carbon fouling.

FWIW I’ve installed winterfronts that fully block the radiators on my tractors (which do only light work in winter weather) for many years. But as captaink suggests a working temperature gage – and keeping an eye on it - is absolutely essential if you do!

One clarification: Blocking airflow to the radiator does not increase stress on the fan blades. Rather the converse is true – it REDUCES blade stress. (Ask any engineer with axial fan design experience…). A blade failure behind a blocked radiator is purely coincidental.

Now stay warm!!

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