Generac — Cylinder Head Bolt Tightening
Adjustments
From a Generac service manual covering: 9049-0, 9254-0, 9254-1, 9260-0, 9260-1, 9260-3, 9340-0, 9340-1, 9340-3, IM100G, IM80G, NP100G…. Check it applies to your exact model before use.
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Procedure
- Retighten bolts while engine is cold at approximately 68°F (20°C).
- Remove all spark plugs, oil pump drive gears, retainer and bolts.
- Set No.1 cylinder at TDC of compression stroke.
- Tighten bolts to 47-51 foot-pounds in sequence shown.
Tools required
- torque wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 47-51 foot-pounds (64-69 N-m)
Source: Generac 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.