Craftsman Marine — Retightening the cylinder head bolts
Maintenance
From a Craftsman Marine service manual — check it applies to your exact model before use.
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Procedure
- Drain out coolant.
- Loosen the bolts slightly.
- Retighten the bolts to the specified torque in the numerical order illustrated.
- Keep the rocker assembly (rocker arms, shaft and stays) removed when retightening.
Tools required
- Torque wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- M10 bolt: 73.5 to 83.4 N·m (7.5 to 8.5 kgf·m) [54.25 to 61.48 lbf·ft]
- M8 bolt: 19.6 to 29.4 N·m (2.0 to 3.0 kgf·m) [14.47 to 21.70 lbf·ft]
Source: Craftsman Marine 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.