Generac 2.4 L / 60kW 1.5L — Clean / Gap / Replace Spark Plugs
Maintenance
For the Generac 2.4 L / 60kW 1.5L, from the Generac owner's manual.
Applies to: Generac 2.4 L, Generac 2.4L engine, Generac 1.5L engine
Before you start
- Do not disconnect spark plug wires with engine running
Parts for this job
- 275-A4531 Spark plug Amazon eBay $22.57
Part numbers from the service-parts list for Generac 2.4 L. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Remove battery negative cable (black) from battery negative (-) terminal.
- Remove spark plug cables from spark plug terminals.
- Thoroughly clean area around spark plugs.
- Remove spark plugs from cylinder head using spark plug socket wrench.
- Check condition of threads in cylinder head and on spark plugs.
- Clean spark plugs using a wire brush and commercial solvent.
- Check spark plug gap using a wire feeler gauge and adjust gap.
- Finger tighten spark plugs into cylinder head then tighten to torque.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Spark plug torque 18 ft-lbs (25 N-m)
- Gap 1.07-1.17 mm (2.4L), 0.9 mm (1.5L), 0.71 mm (32/38 kW, 60 kW)
Full service-parts list: Generac 2.4 L →
Source: Generac owner's 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.