ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 017-002   Cup Plug

Remove

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 CAUTION 

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

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

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

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Use a dent puller to remove the plug.

Discard all used cup plugs. Do not use them again.

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Clean and Inspect for Reuse

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

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Inspect the cup plug bores for damage.

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Install

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 CAUTION 

Excessive sealant can run back into the engine and cause damage to other components. Allow the sealant to dry for a minimum of 2 hours before operating the engine. The plug can come out of the bore if the sealant is not dry.

Apply a 2 mm [1/16 in] bead of cup plug sealant, Part Number 3375068, or equivalent to the outside circumference of the cup plug and the inside diameter of cup plug bore.

NOTE: Do not install a used cup plug. Discard all plugs after removal.

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Install the cup plug with the appropriate cup plug driver. See the Service Tools Catalog, Bulletin Number 3377710.

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 CAUTION 

Do not install the cup plug too deeply. If the cup plug is not installed straight and flat, it must be replaced with a new cup plug.

The cup plug must be installed with the edge of the cup plug 0.5 to 1.0 mm [0.020 to 0.040 in] deeper than the leading chamber of the bore.

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Last Modified:  20-Mar-2009