picture of a waterpump cummings big cam 350

They can easily overheat in demanding situations particularly in the heat of summer. Peter Sharp Vice President of Pittsburgh Power has been working with the Big Cam Cummins for over 30 years and he highly recommends that you revert the low-flow system back to the high-flow. Lubricating System And Cooling System of Cummins NTA Series Engine Oct. Just bought a 1988 Pete 377 with a Cummins Big Cam 4 motor in it.Ĭummins low flow cooling system diagram. High-flow cooling systems typically have about a 7 degree F. He put it all out with graphs charts and figures. The IV are the ones with the low flow cooling system. Low flows were relatively late in the big cam production run. Haveing said that i ran my 1st 1 million miles with the big cam 4s and got over 13 m out of my fixed timed 315hp that i later turned up to around 400. Still runs hot 195 to 205 both needle guage and digital. View and Download CUMMINS NH 855 shop manual online. One of the guys asked why we are backing up from 350s to 315s. Gary Hoffman president of Diesel Injection in Pittsburgh Pa. These engines take a special radiator and different sealing rings in the water manifold.

When I worked at a fleet that purchased BC4 315s a Cummins Rep came and gave a class on the low flow cooling system. This series used what is called a low-flow cooling system and it can be problematic. Light weight low fuel consumption high power and reliable work and the spare parts supply and maintenance is convenient. The only issue these engines have is their low-flow cooling system. The cooling system is defined by two flow loops one for the engine and the other for cooling purposes. Has new radiator in it runs a little over 200 degrees in a couple of miles. We had an 89 Volvo with a low flow system. I have a 350 cummins low flow that gets hot under a load. There are two thermostats one is for circulating coolant strictly thru the engine block and at about 160 the other begins to open as the bypass thermostat starts to close circulating water to the radiator heat exchanger. The old full flow ones have hoses that are 2 or larger. An engine driven pump circulates a coolant through the engine block and cylinder heads. Safe Three Primary Keys To Implementing FlowĪll cooling system items checked and repaired as required by Cummins Flagstaff.Ĩ55 cummins low flow cooling system diagram.Ms Flow Save Email Attachment To Sharepoint.

Picture of a waterpump cummings big cam 350