How to remove Toyota Crown intake manifold

The first step is to remove the air inlet pump. The pump on the left side of the battery has four screws. Pull out the electric wire connector, remove the two pipes on the right side, and remove the air inlet pump. It should be clear from the picture that the one on the right is the air inlet pump with two screws on the front and back. The one on the right is hard to get rid of. Step 2, start to remove the intake manifold * * * There are eight screws! Four up, four down. Step 3: After removing all the screws, don't take the intake manifold in a hurry. First remove the left oil pipe and fix it with pliers. At the same time, unplug the pipeline of the fuel pressure valve. Next to the ring is the connecting pipe of the pressure valve, with the spark plug in the middle. Step 5, you can remove the intake manifold. Note that there are two clips on the left and right sides. Use a screwdriver to pry them open gently, and pull out the intake pipe with both hands at the same time.

The function of intake manifold is to maintain driving safety. For a carburetor or throttle body gasoline injection engine, the intake manifold refers to the intake pipe behind the carburetor or throttle body and before the intake port of the cylinder head. Its function is to distribute the mixture from carburetor or throttle body to the air intake of each cylinder.

For port fuel injection engines or diesel engines, the intake manifold only distributes clean air to the intake of each cylinder. The intake manifold must distribute air, fuel mixture or clean air to each cylinder as evenly as possible, so the length of air flow channels in the intake manifold should be as equal as possible. In order to reduce airflow resistance and improve intake capacity, the inner wall of intake manifold should be smooth.