Power Solutions International — Adjust Intake and Exhaust Valve Clearance
Adjustments · Valve train / rocker arms
From a Power Solutions International owner's manual — check it applies to your exact model before use.
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Before you start
- Measure and adjust while engine is cold.
Procedure
- Remove wiring harness from starter and remove starter.
- Install barring over tool (part #Z52500309).
- Remove timing access cover to expose flywheel timing marks; remove all twelve valve covers.
- Using a 1/2 in ratchet, rotate engine until cylinder 1 is at TDC.
- Check rockers; adjust valves marked blue when cylinder 1 is at TDC.
- Set lash to 0.55 mm (0.022 in) intake and 1.00 mm (0.039 in) exhaust.
- Rotate crankshaft 360 degrees to TDC #1 again and check remaining valves.
- Reinstall valve covers.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Intake 0.55 mm (0.022 in)
- Exhaust 1.00 mm (0.039 in)
Source: Power Solutions International owner's 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.