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Pontiac Radiator to Effectively Cool your Engine

Your vehicle’s cooling system functions mainly to keep the engine from overheating by transferring some of this heat to the air. On the other hand, because your vehicle runs best at fairly high temperature, it is also the job of the cooling system to allow the engine to heat up as fast as possible and to keep the engine at a constant temperature. Fuel is consistently burning in your vehicle’s engine causing so much heat which goes right out of the exhaust system. Some that does not exit the exhaust system soaks the engine causing it to heat up. There are two kinds of cooling system- the liquid cooling and the air-cooling.

The liquid cooling is more commonly used by modern cars. The process circulates fluid through pipes and passageways in the engine. The liquid passes the engine and absorbs the heat and cool the engine. This liquid is a mixture of water with ethylene glycol (also known as antifreeze) and a little corrosion inhibitor. It then passes the radiator which transfers the heat from the fluid to the air. The radiator is a type of heat exchanger which is designed to transfer heat from the hot coolant that flows through it to the air blown through it by the fan. The Pontiac Radiator is usually made by brazing thin aluminum fins to flattened aluminum tubes. The coolant passes these many tubes which are mounted in parallel arrangement. From the inlet to the outlet the coolant flows through the many tubes. The flow of the water is not smooth but rather turbulent so that all of the fluid will mix together and have the ability to actually touch the tube and be cooled directly and more heat is extracted. From the engine, the water will pass the Pontiac Radiator, which will transfer or disperse the heat from the water to the air blowing within it and cooling the water. Simultaneously, the heater core works which helps to cool the engine by transferring the heat towards the interior of the car. The front of the radiator is also cooled by the outside air coming through the car's grill. The water that comes out of the Pontiac Radiator is cooler and is ready to start the process again and this cycle continues as long as the car engine is running.

On the both sides of the radiator are tanks that have a transmission cooler. There is an inlet and outlet where the oil from the transmission enters the cooler. Unlike the radiator which exchanges heat with the air, the oil in the transmission cooler exchanges heat with the coolant. A Pontiac Radiator does not contain any electronic part although sensors do register the temperature when it exits the radiator. So it is essential to regularly check your radiator and always make sure it is always filled with water. You may add coolant or anti-freeze depending on the weather situation. Make sure that it is not leaking or it has a broken hose because it can further damage other parts like your engine and the operating temperature of the car can immediately reach a dangerous level in minutes.

About the Author

Anthony Fontanelle is a 35-year-old automotive buff who grew up in the Windy City. He does freelance work for an automotive magazine when he is not busy customizing cars in his shop.

Volvo Penta AQ140A Help needed removing cap off heat exchanger system? Help?

Just changed the impeller on my engine and the water is pumping well now. Only problem is I need to get into the saltwater/fresh system to replace the filter. The cap will not for the life of me come off!! Its the big round one on the left (not the radiator side) I have attempted to get it off much to my disappointment, it only should need half a turn then come off right? Any help would be appreciated. Its a new boat i have purchased and just doing all the things so she runs mint. Thanks
Great, so I have to push down, was trying to work out what the writing said. Have I damaged the cap by tring to undo it?? They are $100 from Volvo so hope like hell I havent. Judging by the state of the impeller the filter would be well worth a check!! Cheers mate great advice, please answer this q too mate!

You need to push down on the cap before you turn it. The water "strainer" only needs to be cleaned from time to time. It a plastic basket type filter. These are great running engines. Good luck!

EDIT/ No the cap should be OK. Impellers last 2/3 years on average. The water filter strains out stuff that could plug the system. I clean mine about every 20 hours of use. It's easy once you figure out how to get the cap off. I'm glad I was of some help.

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