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Italian tune-up improved the 40T's engine

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G Taylor

05-05-2003 06:48:41




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My father was concerned the 40 was slobbering the odd spec of oil out the stack, fouling the plugs and smoking. It was no prize when purchased and was running on one cylinder. The previous owners thought it was just a gutless worn out tractor. A pair of non resistor Autolites, correcting the coil polarity and leaning the carb did wonders. After 7 years of parade and show duty a rebuild was considered due to the smoke and power loss. Since there was nothing to loose we brought out the pto powered generator and loaded her up. HP was down and smoke was up but that gradually changed and we could keep adding more loads. Kept the throttle wide open and loaded to 540 rpm. My sister was "helpful" and shut off lights and fans she couldn't understand were on in the daytime. By the end of 1-1/2 hrs she had burned the old gas/stabile mix out and quite smoking. Found the fan belt was past it's prime and required tightening to maintain cooling. Verified the temp gauge was faulty and the head gasket requires re-torquing. Not thrilled about scratching the hood paint to get at it. Never boiled but a bit of seepage all the way around the block/head, enough to run streaks a few inches long. The previous owners had been in there and who knows if they even used a torque wrench.

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John T

05-05-2003 07:10:45




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 Re: Italian tune-up improved the 40T's engine in reply to G Taylor, 05-05-2003 06:48:41  
Hey GT, I'n not familiar with the term Italian tune up, but sometimes a good long hot hard use can sure do wonders huh. I believe when tractors set way too long corosion and crud and carbon can cause the rings to sieze up and not be able to flex in n out reducing compression plus rust or carbon may form on the valve face/seat and varnish may clog carb passages. However, that good long hard hot use can clean up and blow out can eliminate many of those problems. Good to hear your story. Take care. John T

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