3116 and 3126 Truck Engines Engine Oil Cooler Bypass Valve – Remove and Install

Removal Procedure


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1.Remove plug (1) and the O-ring seal from the engine oil cooler.

2.Remove valve spring (2) and bypass valve (3) from the engine oil cooler.

Installation Procedure

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1.Inspect the condition of the O-ring seal. Replace the seal, if necessary.

2.Install bypass valve (3) and valve spring (2) in the engine oil cooler.

3.Install plug (1) in the engine oil cooler.

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