Mitsubishi — Tightening Main Bearing Cap Bolts
Repair & overhaul · Main bearing caps
From a Mitsubishi service manual — check it applies to your exact model before use.
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Procedure
- Tighten main bearing cap bolts to specified torque.
- Tighten side bolts on right side of engine.
- Tighten side bolts on left side of engine.
- Make sure crankshaft rotates smoothly.
Tools required
- Torque wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Cap bolts 490±24.5 N·m [Wet]
- Side bolts 147±7.4 N·m [Wet]
Source: Mitsubishi 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.