Power Solutions International — Check and adjust valve clearance
Adjustments · valve train / rocker arm
From a Power Solutions International service manual — check it applies to your exact model before use.
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Procedure
- Rotate crankshaft so cylinder 1 is at compression top dead center.
- Adjust intake valve clearance of cylinders 1, 2, 4; exhaust of 1, 3, 5.
- Set intake clearance (0.5) mm and exhaust clearance (0.8) mm.
- Tighten adjustment nut to (45 ± 5) N·m.
- Turn to the six-cylinder top dead center.
- Adjust intake valves of cylinders 3, 5, 6 and exhaust of 2, 4, 6.
- Set intake (0.5) mm and exhaust (0.8) mm.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Intake valve clearance 0.5 mm
- Exhaust valve clearance 0.8 mm
- Adjustment nut torque 45±5 N·m
Source: Power Solutions International 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.