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Cummins N14 STC, Celect, Celect Plus – Service Manual 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.

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

Drill a 1/8-inch hole in the cup plug.

  
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 CAUTION 

Discard used cup plugs. Do not use them again.

Use a dent puller to remove the plug.

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Clean

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Clean the cup plug bores.

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Inspect for Reuse

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Inspect the bores for damage.

Repair the bores if necessary.

NOTE: Refer to Section V for cylinder block cup plug bore dimensions and cup plug dimensions.

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Install

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Apply a film of cup plug sealant, Part Number 3375068, to the outside diameter of the cup plug.

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, Part Number 3376793.

NOTE: Allow the cup plug sealant to dry for a minimum of two hours after the plug is installed before operating the engine. The plug can come out of the bore if the sealant is not
dry.

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 CAUTION 

The plug must be installed with the edge of the plug deeper than the leading chamfer to the bore.
 CAUTION 

Do not install the plug too deeply. The cross drilling in the cylinder block may be blocked. If the plug is not installed straight and flat, it must be replaced with a new cup plug.
 
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Last Modified:  31-Oct-2011
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