Contents: Mechanical fuel pump for 2.0L engine ⤓ Mechanical fuel pump for 2.6L engine ⤓ Removal and installation ⤓ Check on the car ⤓ Checking the removed pump ⤓
Mechanical fuel pump for 2.0L engine
1. From the filter; 2. Camshaft; 3. Pusher; 4. Fuel return line fitting; 5. To the carburetor
Mechanical fuel pump for 2.6L engine
1. Fuel return line fitting; 2. To the carburetor; 3. From the filter; 4. Camshaft
Installed on all vehicles with 4-cylinder engines. The pump is mounted on the side of the cylinder head. The pump is driven from the camshaft eccentric via a pusher or lever.
Removal and installation
1. Disconnect the battery from ground. Remove the air filter (on car parts).
2. Set the piston of the 1st cylinder to TDC of the compression stroke. To do this, turn the crankshaft clockwise until the mark on the pulley or damper aligns with the lug on the cylinder block. Remove the valve cover and check the valve springs of the 1st cylinder. If both springs or at least one are compressed, then turn the crankshaft 1 revolution. If the rocker arms swing, then the piston of the 1st cylinder is at TDC of the compression stroke.
3. Disconnect the fuel hoses.
4. Loosen the bolts and remove the pump, spacer, gaskets and pusher.
5. Installation is carried out in reverse order. Tighten the pump bolts to 16 Nm.
Check on the car
1. Disconnect the hose from the filter on the pump and connect the vacuum gauge.
2. Disconnect the coil wire and have an assistant turn on the starter.
3. With each stroke of the eccentric, the vacuum gauge should show a significant vacuum, without sharp jumps. If surges or low vacuum are observed, replace the pump.
Checking the removed pump
1. Replace the pump if fuel or oil leaks through the hole in the top of the housing.
2. Check the condition of the end face of the push rod or the thrust surface of the lever. If wear is detected on the end face, remove the cover and check the condition of the camshaft eccentric surface. If the end face on the pump side is heavily worn, replace the pusher and the pump.