[11B] ENGINE OVERHAUL <4G6-SOHC> - - CRANKSHAFT AND CYLINDER BLOCK - REMOVAL AND INSTALLATION | PRINT PAGE / INDEX / PRIOR / NEXT

CRANKSHAFT AND CYLINDER BLOCK

REMOVAL AND INSTALLATION
|  |  | Removal steps
--- | --- | --- | ---
|  | 1. | Drive plate bolt
|  | 2. | Adapter plate
|  | 3. | Drive plate
|  | 4. | Crankshaft bushing
|  | 5. | Rear plate
|  | 6. | Bell housing cover
| >>E<< | 7. | Oil seal case
| >>D<< | 8. | Oil seal
| >>C<< | 9. | Bearing cap bolt
|  | 10. | Bearing cap
| >>B<< | 11. | Crankshaft bearing, lower
| >>A<< | 12. | Crankshaft
|  | 13. | Crankshaft bearing, upper
|  | 14. | Thrust bearing
|  | 15. | Cylinder block
| INSTALLATION SERVICE POINTS
| >>A<< THRUST BEARING INSTALLATION Install the two thrust bearings in the No. 3 bearing bore in the cylinder block. Applying engine oil to the bearings will help facilitate holding them in position.
| Each thrust bearing must be installed with the grooved side toward the crankshaft web.
| >>B<< CRANKSHAFT BEARING INSTALLATION
| Location of crankshaft journal diameter marks. <Bearing selection example> If the crankshaft journal diameter mark is “0” and the cylinder block bearing bore mark is “1”, then select a bearing with a “2” mark as the No. 1, 2, 4 or 5 bearing and a bearing with a “1” mark as the No. 3 bearing. If the crankshaft journal diameter mark is illegible, measure the journal diameter and select a bearing with the mark corresponding to the measurement.
| The diameter identification marks of the bearing bores in the cylinder block are stamped in the location shown in the drawing.
No. 1, 2, 4 and 5 bearings
Crankshaft journal diameter | Cylinder block bearing bore marking | Crankshaft bearing marking
--- | --- | ---
Identification mark | Journal diameter measurement mm
0 | 56.994 - 57.000 | 0 | 1
1 | 2
2 | 3
1 | 56.988 - 56.994 | 0 | 2
1 | 3
2 | 4
2 | 56.982 - 56.988 | 0 | 3
1 | 4
2 | 5
No. 3 bearing
Crankshaft journal diameter | Cylinder block bearing bore marking | Crankshaft bearing marking
Identification mark | Journal diameter measurement mm
0 | 56.994 - 57.000 | 0 | 0
1 | 1
2 | 2
1 | 56.988 - 56.994 | 0 | 1
1 | 2
2 | 3
2 | 56.982 - 56.988 | 0 | 2
1 | 3
2 | 4
| The size mark of each crankshaft bearing is indicated by ink in the location shown in the drawing.
| Install bearing halves with oil grooves in the cylinder block bearing bores. Install bearing halves with no oil grooves in the beam bearing cap.
| >>C<< BEARING CAP/BEARING CAP BOLT INSTALLATION Install the bearing cap with the arrow pointing to the timing belt.
| Measure the nominal length (shank length) of each bearing cap bolt before installation. If the measurement exceeds the limit, replace the bolt. Limit: 71.1 mm Apply engine oil to the threads and bearing surface of the bolt.
| Tighten the bolts to 25 ± 2 N·m in the indicated sequence. Make a paint mark on the head of each bolt. Make a paint mark on the bearing cap at a point 90° to 100° away in the tightening direction from the paint mark made on the bolt head.
| CAUTION If the tightening angle is less than 90°, adequate tightness could not be assured. If the tightening angle exceeds 100°, loosen the bolt completely and then perform the tightening procedure again beginning with the first step. Turn clockwise the bolts 90° to 100° in the indicated tightening sequence to bring the mark on each bolt head into alignment with that on the bearing cap.
| After installing the bearing caps, measure the end play of the crankshaft. If the end play exceeds the limit, replace the crankshaft bearings. Standard value: 0.05 - 0.25 mm Limit: 0.40 mm
| >>D<< REAR OIL SEAL INSTALLATION
| Use the special tools to install the rear oil seal. Handle (MB990938) Crankshaft rear oil seal installer (MD998776)
| >>E<< REAR OIL SEAL CASE INSTALLATION
| Apply a bead of FIPG to the surface of the rear oil seal case as shown in the drawing. Specified sealant: Mitsubishi Genuine Part No.MD970389 or equivalent Install the oil seal into the cylinder block after applying an appropriate amount of engine oil to the entire circumference of its lip portion.

[11B] ENGINE OVERHAUL <4G6-SOHC> - - CRANKSHAFT AND CYLINDER BLOCK - REMOVAL AND INSTALLATION | PRINT PAGE / INDEX / PRIOR / NEXT

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