Power Solutions International — Main bearing bolt tightening
Repair & overhaul · Engine block module
From a Power Solutions International service manual — check it applies to your exact model before use.
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Procedure
- Pre-tighten each M14-10.9 main bearing bolt to 70 N·m.
- Tighten the bolts for further 90°±4°.
- Start with middle bearings and work from middle to two ends evenly.
Specs & values
- M14-10.9
- 70 N·m + 90°±4°
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.