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Home >> Jeep >> 2007 >> Commander Base, 4.7 P, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (3.7L Engine (Service Information)) >> Engine Block >> Cleaning >> Cylinder Block

Cylinder Block

WARNING: This page is about a different variant/trim than selected.

Thoroughly clean the oil pan and engine block gasket surfaces.

Use compressed air to clean out:

  1. The galley at the oil filter adaptor hole.
  2. The front and rear oil galley holes.
  3. The feed holes for the crankshaft main bearings.

Once the block has been completely cleaned, apply Loctite® PST pipe sealant with Teflon 592 to the threads of the front and rear oil galley plugs. Tighten the 1/4 inch NPT plugs to 20 N.m (177 in. lbs.) torque. Tighten the 3/8 inch NPT plugs to 27 N.m (240 in. lbs.) torque.

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