Diagnostic
Damaged threads in cylinder head
Cause: Overtightening of spark plugs Test: Verify spark plug torque does not exceed specified value (13 lbf·ft / 18 N·m) Expected: 13 lbf·ft
Diagnostic
Cause: Overtightening of spark plugs Test: Verify spark plug torque does not exceed specified value (13 lbf·ft / 18 N·m) Expected: 13 lbf·ft
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Ask Boat Guru about thisSpec · 13 lbf·ft conditions={"also_expressed_as":"18 N·m, 1.8 kgf·m"}
Procedure · 1. Install the spark plugs carefully, by hand, to avoid cross-threading. 2. After each spark plug seats, tighten with the spark plug wrench supplied in the tool kit to compress the sealing washer. (torque: 13 lbf·ft) ...
Spec · 33 lbf·ft conditions={"stage":"Final alignment to cotter pin hole","equivalentSI":"44 N·m","equivalentMetric":"4.5 kgf·m","note":"Do not exceed this limit or propeller and shaft may be damaged"}
Procedure · 1. Change the engine oil and the oil filter (see pp. 91–93). 2. Remove the spark plugs (see p. 95) and remove the emergency stop switch clip from the emergency stop switch. 3. Pour 1–2 teaspoons (5–10 cm³) of clean en...
Diagnostic · Cause: Loose spark plugs Test: Check spark plug seating and torque to spec (13 lbf·ft / 18 N·m) Expected: 13 lbf·ft