ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 004-014   Push Rods or Tubes

Preparatory Steps

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 WARNING 

Batteries can emit explosive gases. To reduce the possibility of personal injury, always ventilate the compartment before servicing the batteries. To reduce the possibility of arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable last.

Remove the following:

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Remove

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Mark the push tubes to identify their location.

Remove the push tubes.

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Clean and Inspect for Reuse

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 WARNING 

Wear appropriate eye and face protection when using compressed air. Flying debris and dirt can cause personal injury.

Clean the push tubes in hot soapy water.

Dry with compressed air.

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Inspect the push tube ball and socket for signs of scoring. Check for cracks where the ball and the socket are welded into the tube.

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Check the push tubes for straightness.

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Install

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 CAUTION 

Mismatching push tubes, rocker levers and rocker lever adjusting screws can lead to engine damage. These components are matched depending on the engine configuration. If components are being replaced, make sure the correct part numbers are being installed.

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Different adjusting screws are used depending on the engine configuration. Older designs used a collar feature (A) between the adjusting screw threads and the ball. Newer designs (B) have eliminated the collar feature. These components are matched depending on the engine configuration. If components are being replaced, make sure the correct part numbers are being installed.

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Install the push tubes in their original location.

Install the push tubes into the sockets of the valve tappets.

Lubricate the push tube sockets with clean 15W-40 engine oil.

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Finishing Steps

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 WARNING 

Batteries can emit explosive gases. To reduce the possibility of personal injury, always ventilate the compartment before servicing the batteries. To reduce the possibility of arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable last.

Install the following:

Operate the engine and check for leaks.

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Last Modified:  19-Oct-2009