Dodge Journey: Bearing(s), crankshaft, main

Standard Procedure

CRANKSHAFT MAIN BEARING FITTING

2.7L DOHC Engine
Fig. 169: Cylinder Block Main Bore Grade Marking

The grade marks for the cylinder block main bearing bore grade is located on the pan rail just below the left side engine mount bracket. These marks are read left to right, corresponding to main bore 1, 2, 3, 4.

2.7L DOHC Engine
Fig. 170: Crankshaft Main Journal Grade Marking Location

The main bearings are "select fit" to achieve proper oil clearances. For main bearing selection, the block and crankshaft have grade identification marks.

The grade marks for the crankshaft are located on the rearmost crankshaft counter weight as shown in illustration. The crankshaft journal grade marks are read left to right, corresponding with journal number 1, 2, 3, 4.

MAIN BEARING SELECTION CHART-2.7L

Refer to the selection chart to properly select the main bearings. For an example, if the main bore grade is 3 and the journal grade is 2, the proper select fit bearing would be (2) +0.003 mm (+0.0002 in.).

2.7L DOHC Engine
Fig. 171: Main Bearing Grade Marks

  1. - LOWER MAIN BEARING
  2. - UPPER MAIN BEARING
  3. - OIL FEED HOLE AND GROOVE
  4. - GRADE SELECTION INK MARKS

NOTE: Service main bearings have a number from 1-5 marked in ink on the bearing surface. For verification, use the MAIN BEARING SELECTION CHART-2.7L for number to size identification.

The upper main bearing has a oil feed hole and a center groove to allow lubrication of the main journal and must be properly positioned in the block.

NOTE: Although cylinder bores are graded for size, there is only one piston size.

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