• Cooling System
• Lubrication System
• Fuel Supply System
• Engine Computer
• Major Pitch
• Other (oil pan, intake manifold cover distribution)
COOLING SYSTEM
Radiator
The radiator is the most important element of the cooling system. Without a periodic change of antifreeze chemicals, water adheres to the inner walls restricting the flow and preventing the radiator to cool properly. Depending on the severity of the damage, should be sent to probe the radiator, soldering or replacement.
Radiator cap
Responsible for maintaining pressure in the cooling system, and when it is weak or defective, it reduces the boiling point, causing overheating and, consequently, damage to the newly installed engine. This is all to replace the radiator cap with a new one.
Water Pump
A water pump that is not working properly, obviously causes engine overheating. Failures are very common in the pump seal, a bad bearing or gear damage. The recommendation here is to always replace the water pump for a new one.
Thermostat, belts, hoses, fan, other
The key is to replace the thermostat installing the correct type for the vehicle in order to take temperature measurements suitable for your engine, replace belts and hoses at the slightest sign of toughness, replace the fan if there are bent or broken blades, or if the fan mechanism is damaged.
Check for obstructions in the Exhaust System (manifold, exhaust, muffler, catalytic converter). Check also the Emission Control System, including the EGR valve, which is recommended to be replaced at the slightest doubt about its function. An EGR valve that is not operating properly can lead to problems of detonation and / or pre-ignition.
Notes on the Thermostat
The function of a thermostat is to prevent water from flowing into the engine while it has not reached its operating temperature, according to the manufacturer's specifications. When the engine temperature approaches its operating temperature (normally 80 º C), the thermostat starts to open allowing a little water to mix with hot water and start the cooling process. When the engine is fully heated, the thermostat opens fully, controlling the speed of water circulation.
When the gas engine works below 80 º C, the pistons and valves are filled with white deposits by oil nitration. Running an engine below its operating temperature requires in turn to excessive consumption of fuel, which causes damage to valves, rings and in the catalytic converter, among other components.
LUBRICATION SYSTEM
Oil Pump and Strainer
The pump and oil strainer must be new if you install a remanufactured engine. (sometimes it is impossible to fully clean a strainer).
Arrow Oil Pump
Some of them are heavy and made of forged steel, others have very small diameters and therefore wear out, bend and break more easily. An arrow worn can damage not only its own gear, but also the gear pump. Do not risk a remanufactured engine for wanting to save a few dollars. Replace the arrow, always.
Oil Cooler
Optional accessory, it is a small radiator which is in the midst of the oil and is located either within the main radiator of the vehicle or in front of it. Well, it must be purged and cleaned to prevent passage of dirty oil to the engine.
FUEL SUPPLY SYSTEM
Carburetor
A faulty carburetor can cause a rich mixture of air-fuel, which results in damage to the engine. On the other hand, if there is dirt off fuel and charge on the shaft of the butterfly, we get a lean air-fuel which could cause explosions. For these reasons, it is vitally important to repair and / or replacing the carburetor when installing your remanufactured engine.
Fuel Injection System
A leak in an injector causes a rich mixture of fuel-air which, as already discussed, damages the engine. By contrast, a clogged or worn nozzle will cause a lean fuel which eventually results in explosions. Obtain similar results with a fuel pressure regulator into disrepair. And a leaking seal will cause a lean mixture of fuel and the respective detonation. Again, it is of utmost importance to ensure that the injection system is, as a whole, functioning correctly.
Mechanical Fuel Pump
A break in the diaphragm of the fuel pump could cause the fuel diluting the engine oil. And a worn pump causes engine knock which can be confused with an aim defective. At the slightest sign of failure, it is always best to wait to replace pump failure in the engine.
Engine Sensors
It tells the computer how to control time, fuel flow, air flow, etc.. As well as ensure efficient combustion, and therefore should be reviewed carefully and repair or replace:
• Oxygen sensor in the exhaust
• Temperature Sensor Air Intake
• Coolant temperature sensor
ENGINE COMPUTER
Connectors should be checked and ground connections, the list of error codes present at that time, the correct operation of the advance of time, the order of ignition and fuel injection itself, the proper functioning of the computer in general .
TUNING MAJOR
We recommend making a pitch higher, checking and repairing or replacing components include:
• Spark
• Distributor Cables / spark plug wires
• Distributor Cap
• Distributor Rotor
• Distributor Arrow
• Mechanical advance distributor Springs
• Fuel Filters & Air
OTHER
Accessories small or large, cast or stamped must be cleaned and installed perfectly: oil pan, intake manifold, distribution cap, caps lifters, oil filter adapter. It is vital a successful installation of packaging in general.
more car tips here.