Oil pump for 4g64

Types of oil pumps for 4g64

An oil pump for 4g64 is an important part of the oil lubrication system in 4g64 engines. The main work of the oil pump is to pump engine oil from the oil pan and circulate it to all the engine parts that need lubrication. This oil pump helps to reduce friction between moving parts of the engine to prevent wear and tear. It also helps to maintain a constant flow of oil in the engine, which helps to maintain oil pressure and temperature in the engine. There are different types of oil pumps available for the 4g64 engines:

• Gear oil pump:

  The oil pump uses two gears to generate flow and pressure to pump oil through the engine. One gear acts as an impeller and moves the oil in the same direction as the rotation of the gears. The other gear acts as a rotor and generates the pressure and flow needed to push the oil out of the pump. Since both gears are in contact with each other, the pumping chamber is created between the two gears and the pump cover. When the gears turn, the oil gets trapped in the chamber and is discharged through the outlet as the space between the gears reduces. Gear oil pumps are used in 4g64 engines because they are simple and efficient. They have a high flow rate and are less sensitive to viscosity changes. The only disadvantage of gear oil pumps is that they produce a lot of noise and are not self-priming.

• Twin-screw oil pump:

  The 4g64 engine uses twin-screw oil pumps, especially in supercharged or turbocharged variants. The oil pump has two rotors that resemble screws. The rotors turn in opposite directions and move oil from the inlet to the outlet through the longitudinal chambers of the pump as they turn. As the rotors move apart, the chamber volume increases and reduces oil in the chamber. This mechanism helps to maintain constant pressure and flow rate, making the oil pump ideal for maintaining oil pressure in high-performance engines. The main advantage of twin-screw oil pumps is that they have a high-pressure increase and low shear rate.

• Rotary oil pump:

  The 4g64 engines use internal gear rotary oil pumps. The oil pump contains a crescent-shaped rotor and a lobed rotor. The lobed rotor is responsible for generating flow and pressure and driving the crescent gear. As the lobed rotor turns, it creates a vacuum between the lobed rotor and the crescent gear, which helps to suck oil into the pump from the oil pan. The oil is then trapped in the chamber between the lobed rotor, crescent gear, and pump housing and discharged through the discharge port as the space between the lobed rotor and the crescent gear reduces. The rotary oil pump is an efficient and reliable oil pump, making it suitable for the 4g64 engine.

Specification and maintenance of Oil Pump for 4g64

There is a lot of information regarding the specification of oil pumps for 4g64.

• Oil Pump for 4g64

  displacement: 2.4L (2358cc)

  cylinder arrangement: Inline, 4 cylinders

  cylinder bore: 88.0mm

  piston stroke: 100.0mm

  compression ratio: 9.0:1

  power output: 70kW (94hp) at 5000rpm

  torque output: 150Nm at 2500rpm

  valve mechanism: SOHC (Single Overhead Camshaft) with 8 valves

  fuel system: Carburettor or electronic fuel injection (depending on variant)

  ignition system: Distributor ignition (with electronic ignition on some variants)

  engine management: Mitsubishi's Electronic Control Unit (ECU) on EFI variants

  cooling system: Water-cooled with a thermostat

  lubrication system: Pressurized oil lubrication with an oil pump

  accessories: Alternator, starter motor, power steering pump (on some variants), air conditioning compressor (on some variants)

  engine mounting: Typically 3 engine mounts - front, rear, and lower

Maintenance tips:

• Regular Oil Changes

  The engine oil and oil filter should be replaced every 4,000 to 5,000 miles or as recommended in the owner's manual. This keeps the oil pump lubricated and debris-free.

• Monitor Oil Level

  Check the dipstick regularly. Low oil levels can damage the oil pump and engine. Top up with the recommended oil grade if needed.

• Inspect Cooling System

  The cooling system should be inspected periodically. Overheating can affect oil pump performance and cause engine damage. Make sure the coolant level, hoses, and thermostat are in good condition.

• Check Timing Belt

  The timing belt should be replaced according to the maintenance schedule. A failed timing belt can damage the oil pump drive.

• Oil Pump Gasket Inspection

  Oil pump gaskets should be checked for leaks. A leaking gasket can lower oil pressure. Gaskets should be replaced if worn.

• Oil Pump Pressure Test

  The oil pump pressure should be tested with a gauge. Low pressure indicates pump wear. A faulty oil pump requires prompt replacement.

• Professional Service

  Follow the scheduled maintenance services. Complex tasks like oil pump timing require special tools. Have them done by a qualified mechanic.

How to choose oil pump for 4g64

There are several factors to consider when choosing the right oil pump for 4g64. They include:

• Compatibility

  When choosing an oil pump, ensure it is compatible with the 4g64 engine. Not all oil pumps are compatible with every engine. Using an incompatible oil pump will cause engine damage.

• Flow Rate and Pressure

  The flow rate and pressure of the oil pump should be able to meet the requirements of the 4g64 engine. The oil pump's flow rate and pressure should be higher or equal to the requirements of the engine. An oil pump with low flow rate and pressure will not lubricate the engine properly.

• Quality and Reliability

  The quality and reliability of the oil pump are important factors to consider. Using a cheap oil pump will save cost but the oil pump will fail in a short period. This will lead to engine damage. Choose an oil pump with high quality and reliability. The oil pump will last for a long time and the engine will be protected from damage by proper lubrication.

• Installation

  It is important to consider the ease of installation of the oil pump. Choose an oil pump that is easy to install. This will save time and money. Also, ensure that the oil pump can be installed easily without modifying the engine.

• Price

  The price of the oil pump is also an important factor to consider. Choose an oil pump that is compatible with the 4g64 engine and meets the requirements of the engine within the budget.

How to diy and replace oil pump for 4g64

The following are steps on how to DIY and replace oil pump for 4g64.

• Gather the necessary tools. These include a socket set, wrenches, a torque wrench, a gasket scraper, clean rags, and an oil pump priming tool if needed.
• Jack up the vehicle and secure it on jack stands. This provides adequate clearance to access the oil pump.
• Drain the engine oil using a drain pan. Remove the oil drain plug and allow the oil to fully drain.
• Remove the oil pan mounting bolts and carefully pry the oil pan off the engine. Some gentle tapping with a rubber mallet may be needed to loosen the oil pan's seal.
• Take out the old oil pump. First, remove any bolts securing it to the engine. Then, carefully pull the oil pump out of its mounting location. There may be a need to twist and wiggle it free, depending on how tightly it fits.
• Before installing the new oil pump, ensure that the mounting surface on the engine block is clean and free of old gasket material.
• Align the new oil pump with its mounting location on the engine. Then, carefully push it into place so it sits flush against the engine block.
• Secure the oil pump using the previously removed bolts.
• Reattach the oil pan by tightening its mounting bolts.
• Finally, refill the engine with fresh oil through the oil fill cap. Then, screw the oil fill cap back on.

Q&A

Q1: What Is An Oil Pump For 4G64?

A1: The oil pump is a critical component of the 4G64 engine, as it is for all internal combustion engines. Its primary function is to circulate engine oil throughout the engine to lubricate moving parts, reduce friction and wear, and dissipate heat. By ensuring oil flow, the oil pump helps maintain proper engine function and longevity.

Q2: Where is the oil pump located in the 4G64 engine?

A2: The oil pump is typically located at the lower front of the 4G64 engine block. It is often driven by the crankshaft via a chain or belt, depending on the engine's design. Its location allows it to efficiently pump oil from the oil pan and circulate it through oil passages to critical engine components.

Q3: What are the common problems with oil pumps?

A3: Like any mechanical component, oil pumps can experience issues over time, especially with wear and tear. Common problems include decreased oil pressure, which can lead to insufficient lubrication and potential engine damage. Other issues include noise, which may indicate internal wear or damage, and oil leaks, which can result from pump housing deterioration or gasket failure. If users notice any of these problems, they should have the oil pump checked and, if necessary, replaced to avoid engine damage.

Q4: What is the oil pump for 4g64?

A4: The oil pump for 4g64 refers to oil pumps designed specifically for the 4G64 engine. The 4G64 is a petrol engine used in various vehicles, including Mitsubishi and Chrysler brands. The oil pump is a critical component in maintaining engine performance and longevity. Users should use the oil pump for the 4g64 specified for this engine to ensure optimal performance and reliability.