Re: diesel maintenance

Posted by Jerry/MT on August 27, 2006 at 15:29:46 from (67.72.98.46):

In Reply to: diesel maintenance posted by eferwerda on August 27, 2006 at 04:18:55:

I don't know if your tractor has an air filter delta p switch that cuases a red light to come on when the air filter restriction is beyond limits , but paying attention to the air filter is a must on a diesel engine. The intake on a diesel engine is unthrottled so the air flow through the engine is only a function of the rpm. The control variable is the fuel flow. Unlike the gas engine which runs a near constant fuel air ratio (and hence near constant max gas temperature), the diesel runs with a variable fuel air ratio and a variable max gas temperature. At a given rpm, restricting the air flow by allowing the airfilter to get clogged will reduce power because of the reduced airflow but also causes the max gas temperature to increase because the fuel air ratio increases. This can result in reduced engine life and a burned piston crown. As stated by other writers, fuel cleanliness is important also and changing filters per the maintenance schedule and keeping the fuel clean in storage is very important.You may also wnat to add an additive to the antifreeze to prevent cavitation of cylinder liner, which can be a problem on some engines. It's cheap insurnce. Last but not least, regular oil and oil filter changes are a good way to make your engine last.

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