Checking and adjusting drive belts of attachments (Mitsubishi Lancer 9)

Checking drive belts

1. Check the drive belt for damage and excessive wear and make sure it is installed correctly in the pulley grooves. If the belt "squeals" or slips, check the condition of the pulley contact surfaces and the belt tension. If defects are found, replace the drive belt.

Caution: Do not apply oil or grease to drive belts.

Note: separation of the rubber from the cord on the inner (from the side of the ridges) and outer surfaces of the belt, exposure or damage to the cord, separation of the ridges from the rubber base, the presence of cracks, peeling or wear on the side surfaces of the belt and belt ridges is not allowed.

2. Check that the belt does not slip off the tensioner roller. Replace the tensioner if necessary.

3. Check the belt deflection by pressing at the center of the belt span between the pulleys with a force of 100 N, as shown in the figure.

4. Adjust the belt deflection if it does not correspond to the nominal value given in the table "Checking and adjusting the drive belts of attachment units".

Note:

• The term "used belt" refers to a belt that has been in service for more than 5 minutes.
• After installing the belt, start the engine and let it run for 5 minutes, then check the belt tension again.

Adjusting the alternator drive belt tension

1. Loosen the generator pivot bolt nut.

Table. Checking and adjusting the drive belts of the 4G15 engine attachments.

Table. Checking and adjusting the drive belts of the 4G93 engine attachments.

2. Loosen the lock bolt on the adjuster bracket.







3. Turn the adjusting bolt to adjust the belt tension and deflection to the nominal values (see the table "Checking and adjusting the drive belts of attachments").

4. Tighten the lock bolt.

Tightening torque - 23 ±2 N·m

5. Tighten the generator pivot bolt nut.

Tightening torque - 44+10 Nm

6. Tighten the adjusting bolt.

Tightening torque - 5 Nm

7. Turn the engine crankshaft with the starter one or more times, and then check the belt deflection.

Adjusting the tension of the power steering pump and air conditioning compressor drive belt

Engine 4G93

1. Loosen the tensioner roller lock nut.



2. Turn the adjusting bolt on the tensioner bracket to adjust the belt tension and deflection so that it corresponds to the nominal value (see the table "Checking and adjusting accessory drive belts").



3. Tighten the tensioner roller lock nut.

Tightening torque: 26 ±4 Nm

4. Turn the engine crankshaft one revolution or more in the normal direction of rotation (clockwise), then check the drive belt deflection.

Engine 4G15

1. Loosen the power steering pump bolts "A", "B" and "C" shown in the illustration.



2. Turn the adjusting bolt "D" on the tensioner bracket to adjust the belt tension and deflection so that it corresponds to the nominal value (see the table "Checking and adjusting the accessory drive belts").





3. Tighten the power steering pump bolts "A", "B" and "C" to the specified torque.

Tightening torque: 40 ±5 Nm

4. Turn the engine crankshaft one revolution or more in the normal direction of rotation (clockwise), then check the drive belt deflection.