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Wacker Neuson WM 90

Wacker Neuson WM 90
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Reassembly Procedures WM 90 Repair
wc_tx000389gb.fm 64
8.12 Installing Rocker Cover and Spark Plug
See Graphic: wc_gr001911
Note: Replace the gasket with a new one each time the rocker cover
is removed.
8.12.1 Using four M6 bolts (a), secure the rocker cover (b) and gasket (c) to
the cylinder head.
8.12.2 Remove any carbon deposits from the spark plug and inspect the
electrode for damage. Replace the spark plug if necessary. Use NGK
BM6A or BMR6A
Electrode gap: 0.6–0.7 mm (0.23–0.27 in.).
Spark Plug Torque:
New plug: 11.8–14.7 Nm (8.7–10.9 ft.lbs.)
Reused plug: 22.6–24.5 Nm (16.6–18.1 ft.lbs.)

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