Detroit Diesel — Install Flywheel
Repair & overhaul
From a Detroit Diesel service manual — check it applies to your exact model before use.
Before you start
- International Compound No. 2 must never be used between two surfaces where maximum friction is desired, as between the crankshaft and the flywheel.
Procedure
- Attach the flywheel lifting tool and position the flywheel in the flywheel housing; align the flywheel bolt holes with the crankshaft bolt holes.
- Install the clutch pilot bearing (if used).
- Install two bolts through the scuff plate 180° from each other; snug the bolts and remove the guide bolts.
- Remove the flywheel lifting tool.
- Apply International Compound No. 2 to the threads and bolt head contact area of the remaining bolts.
- Install the remaining bolts and run them in snug.
- Remove the two temporary bolts, apply International Compound No. 2 and reinstall them.
- Tighten the bolts to 50 lb-ft, then rotate the bolts according to bolt size (120-150 degrees).
- Mount a dial indicator on the flywheel housing and check the runout of the flywheel at the clutch contact face.
Tools required
- Flywheel lifting tool Amazon
- Guide studs (4) Amazon
- Dial indicator Amazon
- Calibrated torque wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
Source: Detroit Diesel service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.