How to be sure of buying a used engine oil cooler?
Cars can overheat during hot weather or long-distance driving. Engine oil coolers regulate the temperature and help in the performance of the vehicle. It is a part of the vehicle's radiator system. Surrounding the engine is a maze of pipes that maintains an oil supply at a consistent, optimal temperature and provides a cooling effect on the engine. It maintains engine velocity, for when the vehicle is heated the velocity decreases and the oil cannot reach the components.
How does the engine cooler work?
- The cooler helps to keep the engine at the optimal temperature range.
- Cooling the engine is an essential task as the engine generates a huge amount of heat.
- Without an effective cooling system, the engine would stop functioning.
- The cooling system removes surplus heat and maintains an ambient temperature of 115 degrees and gives warmth in winters when the temperate is -25 degrees.
- The engine oil cooler is a separate smaller radiator from the engine’s main radiator.
- It maintains consistent oil supply, optimal temperature and works on the principles of thermodynamics.
- Its purpose is to cool the oil that passes through coils and helps the engine and the transmission to function well for a long time.
- The engine oil cooler is in front of the engine’s cooling system.
- It is a necessity for diesel engines and cars with automatic gearboxes.
- It ensures smooth dissipation of heat while transporting the oil from the moving parts into the oil pan.
- The viscosity of the oil affects lubricating properties. Since viscosity varies with temperature, the temperature at which the oil enters an engine must be monitored. The oil leaving an engine must be cooled before it is recirculated. The amount of cooling must be controlled if the oil is to return to the engine at the correct temperature.
- All cars do not need oil coolers.
- An everyday running car can run on natural cooling effects and maintain the required viscosity limit.
- Racing cars require oil coolers and certain engine modifications in cars require oil coolers.
- Engines that produce more power and generate heat that is transferred to the oil, require oil coolers. If the level of heat is above the original level for which the car was engineered, then the additional heat will have to be removed from the system.
- A front-mounted oil cooler is the simplest to adopt. It sits behind the radiator and is good for cooling oil without reducing too much from the water-cooling system.
The oil cooler specifications
- The oil coolers are vertically mounted with a two-pass water flow and single-pass oil flow through tubes and baffles.
- Made of mild steel with tubes of titanium.
- The tube nest is fixed with a floating tube plate for containing thermal expansion.
- Removable end plates help in coolers cleaning without disturbing the pipes.
- The heat dissipation requires 2MW per cooler.
- Some designs of oil coolers come with the main lubricating oil filters integrated with cooler shells.
Engine oil coolers are of two types.
- Oil-to-water cooler
- Oil -air-cooler
Here the engine oil travels from a heat exchanger element. It is made functional by adding heat to the cold oil or reducing the heat from the excess oil.
The radiator enables engine oil to cool through the cooling fans. The cooling process works through a thermostat that is controlled through a bypass valve. It stops the engine oil from passing through the cooler. It waits for the desired temperature to be reached.
Cooler types include basic tube and fin style where the oil passes through single or multiple coolers. The multiple cooling rows include stack plate type.
Some cooler types are header style and end in tanks and are designed like radiators.
When do you know that the engine oil cooler begins to fail?
- There are two oil cooler adaptors in the oil cooler system. One connects oil lines to the cooler. The other sends the cooled oil back into the oil pan. Oil cooler adaptor can fail externally. This leaves the engine oil to forcibly come out of the engine.
- If the leakage is small, between the adaptor, then it might go unnoticed by the driver as there is only a puddle at the bottom of the engine part.
- There is a possibility that a stream of oil is left on the ground when the vehicle drives away which is also an indicator.
- The accelerator speed slows down, and the temperature of the engine rises as the engine is not being cooled fast enough.
- Black smoke is a sign of a damaged cooler. A leak in the engine oil into the combustion chamber produces the smoke.
- The smoke is also poisonous and driving your car in that condition can damage it further.
- The vibration is a sign that the oil is getting into the combustion chamber causing an explosion in the cylinder and making the engine vibrate. This happens in sync with the normal firing rate. This condition can damage the car.
- If the radiator works beyond the factory specification it can lead to bending and wrapping. In worst cases, it can also burst.
- Study the cooler performance pay attention to the waterside oil cooler pressure drop and the valve position.
- Look for signs of sudden decrease of oil reservoir level, when cooler system pressure is more than cooling fluid pressure, this shows internal leakage.
Why choose Big Mouth Direct?
- The used car engines for sale online will be inspected for leakage before shipping. Radiator fluid lines and hoses are under warranty.
- Special technicians check every part thoroughly.
- Big Mouth Direct has been in the business since 1975 and is linked with a network of junkyards and salvage yards and ship only those parts that are in excellent condition.
- Visit https://bigmouthdirect.com/ for details.