Cylinder Block Assembly: Service and Repair

Fig. 9 Crankshaft Bearing Cap Bolt Removal Sequence:

Fig. 8 Exploded View Of Cylinder Block.:

DISASSEMBLY
Refer to Fig. 8 when performing the following procedure.
1. Place engine on a suitable work stand.
2. Drain coolant and oil, then remove timing chain and cylinder head.
3. Remove oil pan and pump.
4. Remove piston, then the snap rings from the piston assembly.
5. Heat piston and rod assemblies to 140-158°F and push out piston pin. If heat method is not used, piston pins can be pressed out using a suitable press at room temperature.
6. Measure crankshaft endplay using a dial indicator. Endplay should be 0.0024-0.0071 inch.
7. Using sequence shown in Fig. 9, remove main bearing caps by loosening bolts in two or three steps.
8. Remove crankshaft.

Fig. 9 Crankshaft Bearing Cap Bolt Removal Sequence:

Fig. 10 Main Bearing Cap Bolt Tightening Sequence:

Fig. 11 Piston Ring Gap Spacing.:

Fig. 12 Piston Ring Installation Position:

Fig. 15 Connecting Rod Oil Hole Alignment:

Fig. 16 Piston Dimensions.:

ASSEMBLY
When performing the following piston, rod and crankshaft repair procedures, refer to Fig. 8.
1. Install crankshaft main bearings and caps, then tighten bolts to specifications using sequence shown in Fig. 10.
2. If crankshaft endplay was not within specification, replace thrust bearing.
3. Install snap ring on one side of piston pin hole.
4. Heat piston to 140-158°F, then assemble piston, piston pin, connecting rod and new snap ring.
5. Install piston rings, Fig. 11 and 12.
6. Install connecting rod bearings with oil holes aligned, Fig. 15.
7. Install piston and rod assemblies into proper cylinder, then torque rod bolts to 10-12 ft. lbs. plus an additional 35-40° or 17-21 ft. lbs.
8. Piston skirt diameter (A) should be 2.9911-2.9915 inches standard piston and dimension (a) 0.374 inch, Fig. 16.
9. Connecting rod side clearance should be 0.0079-0.0185 inch. If not, replace connecting rod or crankshaft.