PSI (Power Solutions Intl) — Service Procedure

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

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Procedure

1. 1) Remove main bearing bolts (key point 1);
2. 2) Remove main bearing caps (key point 2);
3. 2.2.3.
4. Steps to assemble engine block
5. Reverse disassembly procedure to assemble engine block
6. 2.2.4.
7. Inspect and repair engine block
8. 20
9. key point 1:
10. Inspection:
11. Check and clean engine block. Including but not limited to: Assembly environment must be
12. clean; check engine block finished surfaces for crash damage, scratch and rust; do not bump
13. and scratch the parts during assembling, and besides special requirements, sharp corner
14. and edge on parts must be smoothed.
15. Installation:
16. For 4-cylinder engine, 10 of M14－10.9 main bearing bolts are used to fix the bearings. As
17. shown in Fig. below, tighten from the middle bolts, and then move to two ends alternately,
18. follow the procedures below: pre-tighten each bolt to 70Nm, then turn the bolts for further
19. 90°±4°.
20. Figure 4

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.