Put the crankshaft on V-blocks. Install a dial indicator on the center journal [Figure 60-90-24].
Turn the crankshaft at a slow rate to obtain the misalignment (one half of the alignment measurement).
If the misalignment exceeds the allowable limit, replace the crankshaft.
Tighten the connecting rod bolts to 44 – 49 N•m (33 – 36 ft-lb) torque.
Measure the crankpin bearing I.D. [Figure 60-90-25].
Measure the crankpin O.D. [Figure 60-90-26].
Calculate the oil clearance.
Check the wear on the crankshaft sleeve (Item 1) [Figure 60-90-27].
If the wear exceeds the allowable limit or the seal leaks oil, replace the sleeve.
The special tool set will be needed to replace the crankshaft sleeve.
Remove the sleeve.
Install the sleeve guide (Item 1) and stop (Item 2) [Figure 60-90-28].
Heat the sleeve to approximately 150 – 200°C (302 – 392°F). Install the sleeve on the crankshaft using the special driver tool (Item 3) [Figure 60-90-28].
NOTE: The sleeve is installed with the larger chamfered surface to the front of the crankshaft (Item 1) [Figure 60-90-29].
Measure the I.D. of the No. 1 crankshaft bearing [Figure 60-90-30].
Measure the O.D. of the crankshaft journal [Figure 60-90-31].
Calculate the oil clearance.
If the clearance exceeds the allowable limit, replace the crankshaft bearing.
To remove the front bearing make the tool as shown in [Figure 60-90-32].
To install the front bearing make the tool as shown in [Figure 60-90-33].
Remove the front bearing with the special removal tool [Figure 60-90-34].
Installation: Clean the new bearing and bore, apply oil to the bearing and bore. Install the new bearing with the seam (Item 1) [Figure 60-90-34] towards the exhaust manifold side, using the installation driver tool.
Clean the crankshaft journal and bearing. Put a strip of press gauge on the center journal. Install the main bearing case halves and tighten the bolts. Remove the bearing case halves.
NOTE: DO NOT turn the crankshaft with the press gauge installed. Incorrect measurements will be obtained.
Measure the flattened press gauge [Figure 60-90-35].
If the clearance exceeds the allowable limit, replace the crankshaft bearing.
