ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 017-015   Expansion Plug

CAUTION  Do not allow metal shavings to fall in the engine when drilling a hole in the expansion plug. Damage to engine components can occur.

Use a center punch to mark the expansion plug for drilling.

Drill an 1/8-inch hole into the expansion plug.

Use a dent puller to remove the plug.

Discard all used expansion plugs and expansion plug o-rings. Do not use them again.

Thoroughly clean the expansion plug hole using Scotch-Brite™ or equivalent. Use spray cleaner, Cummins® Part Number 3375433 or equivalent, to perform a final cleaning of the bore.

Inspect the expansion plug bores for damage.

Install the expansion plug o-ring into the bore.

Install the expansion plug with the convex side facing out.

Use a hammer and a flat driver to strike the expansion plug twice to flatten the plug against the o-ring.

Check the plug for proper installation.

• The installed plug must not protrude above the edge of the bore.
• The installed plug must not be more than 1 to 3.5 mm [0.04 to 0.14 in] below the edge of the bore.