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PSI (Power Solutions Intl) — Procedure 8

A PSI (Power Solutions Intl) service procedure — check it applies to your exact model before use.

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Before you start

  • NOTE:

Procedure

  1. 1) Insert the seal valve into the valve guide pipe.
  2. 2) Install the intake valve and exhaust valve onto the cylinder head.
  3. 3) Install new cylinder head gaskets. Cylinder head gaskets cannot be reused.
  4. 4) Assemble the cylinder head to the engine block.
  5. 5) Thread the cylinder head bolts into the cylinder head.
  6. NOTE:
  7. • Leave the four cylinder heads loose at this time. Alignment of cylinder heads must
  8. be completed after installing intake pipe to ensure alignment to prevent coolant
  9. leaks. Reference 5.1.3. Steps to assemble air intake and exhaust system.

Source: manual:4.5L-Engine-Service-Manual-7610033-2.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.