Removal procedure
1. Remove the oil pan. follow the paragraph «oil pan» in this section.
2. Dismantle the oil suction tube with O-ring.
3. Remove the oil pan.
4. Loosen the crankshaft balancer assembly retaining bolts.
5. Remove the crankshaft balancer assembly and shim.
Adjustment Procedure
1. Align the mark on the crankshaft gear with the notch on the bottom of the timing belt cover.
2. In this position, the crankshaft flattened side (arrow) of both shafts of the balancing system must face down (towards the oil pan) and should be on a horizontal line.
3. Screw measuring device KM-949 (3) with a long knurled screw (1) into the 1st shaft of the balancing system (intake side) and tighten by hand. measuring arm (5) should be directed to "9 o'clock", as shown in the illustration.
4. Install the dial indicator holder with indicator (4) to the cylinder block.
5. Place the pre-tensioned head (6) indicator on the measuring arm of the KM-949 measuring device. The head must be set exactly between the notch marks, perpendicular to a flat surface (7).
6. Determine the left and right stops by rotating the knurled bolt (2).
7. Set the indicator dial to zero.
8. With knurled screw (2) move the 2nd shaft of the balancing system (release side) back and forth. Once again, simultaneously read the tooth backlash from the indicator.
9. Permissible backlash between the teeth is: 0.02 mm to 0.06 mm (0.0008 to 0.0024 inches).
10. Backlash between teeth should be measured at 4 different locations; additionally turn the crankshaft at the timing belt drive gear fixing bolt by 45°in the direction of engine rotation until the measuring arm (2) will not be directed to "6 hours".
11. Then loosen the knurled bolt (3), fix the measuring arm on the "9 o'clock" and repeat measurements.
12. If the value determined in one of the 4 measurements is outside the allowable range of 0.02 mm to 0.06 mm (0.0008 to 0.0024 inches), you need to adjust the backlash between the teeth.
13. Remove the balancer assembly from the cylinder block/main bearing caps and remove together with the balancing piece. The balancing part has a number (code) to make the choice easier. The backlash between the teeth can be adjusted using a balancing piece of different thicknesses.
Code | Thickness of the balancing piece in millimeters (mm) |
55 | 0,535 – 0,565 |
58 | 0,565 – 0,595 |
61 | 0,595 – 0,625 |
64 | 0,625 – 0,655 |
67 | 0,655 – 0,685 |
70 | 0,685 – 0,715 |
73 | 0,715 – 0,745 |
76 | 0,745 – 0,775 |
79 | 0,775 – 0,805 |
82 | 0,805 – 0,835 |
85 | 0,835 – 0,865 |
Each subsequent larger or smaller balancing part changes the backlash between the teeth by 0.02 mm (0.0008 inch).
Example of balancing piece selection: Installed balancing piece with code "70" gave a backlash between the teeth of 0.08 mm (0.0031 inch). If you now install a balancing part with the code "67", then the backlash between the teeth will be approximately 0.06 mm (0.0024 inch).
Attention! You can install only one balancing part.
Installation procedure
Attention! Before installing the balance shaft assembly, perform the adjustment procedure necessary for proper operation.
Attention! Do not break or press the teeth while engaging the set of gears into the assembly.
1. Align the mark on the crankshaft gear with the notch on the bottom of the timing belt cover.
2. Rotate the balance shaft until the flattened side (arrow) both shafts of the balancing system will not face down (towards the oil pan) and be on a horizontal line.
3. Install the selected balancing part together with the balance shaft assembly on the cylinder block.
4. Install the lock bolts of the balancer shaft assembly.
Tighten
Tighten the lock bolts of the balance system shaft assembly to 20 Nm (15 lb-ft) and turn the bolts another 45°using the angle torque indicator KM-470-B.
Note: If the balance shaft assembly needs to be replaced, use the thickest balance piece with code "85", in order to guarantee side clearance between the teeth in any case.
5. Install the oil pan scraper.
Tighten
Tighten the oil pan scraper retaining bolts to 8 Nm (71 lb-in).
6. Install oil suction pipe with O-ring.
Tighten
Tighten retaining bolts for oil suction pipe to 8 Nm (71 lb-in).
7. Install the oil pan. follow the paragraph «oil pan» in this section.