XJ (X350) V8-4.2L (2005)
Crankshaft: Testing and Inspection
Crankshaft Main Bearing Journal Clearance
Crankshaft Main Bearing Journal Clearance - 3.5L/4.2L
CAUTION: THESES PROCEDURES SHOULD NOT BE CARRIED OUT DURING THE MANUFACTURERS WARRANTY PERIOD.
1. NOTE: Example -*PJEAL* - Crankshaft Main Journal Diameter.
Read the grade letters from LEFT to RIGHT = FRONT to REAR of engine eg. for this example engine, the crank journal at the front of the engine
is grade P, and at the rear is grade L.
^
The selection of main bearing shells is described in the following chart.
2. NOTE: Example -*ABAA* - Crankshaft (Big End Bearing) Crankpin Diameter
NOTE: For vehicles built up to 2002 MY.
NOTE: If the crankshaft main bearing carrier retaining bolts have been marked with a center punch dot, they must be discarded and new bolts
installed.
Read the grade letters from LEFT to RIGHT = FRONT to REAR of engine eg. for this example engine, the crankpin at the front of the engine is
grade A and at the rear is also grade A.
^
Grade A = 56,000 to 55,994 mm (Bearing Shell Color Code - Blue).
^
Grade B = 55,994 to 55,988 mm (Bearing Shell Color Code - Green).
^
Grade C = 55,988 to 55,982 mm (Bearing Shell Color Code - Yellow).
3. NOTE: Example -*ABAA* - Crankshaft (Big End Bearing) Crankpin Diameter
NOTE: For vehicles built from 2002 MY.
NOTE: If the crankshaft main bearing carrier retaining bolts have been marked with a center punch dot, they must be discarded and new bolts
installed.
Read the grade letters from LEFT to RIGHT = FRONT to REAR of engine eg. for this example engine, the crankpin at the front of the engine is
grade A and at the rear is also grade A.
^
Grade A = 53,000 to 52,994 mm (Bearing Shell Color Code - Blue).
^
Grade B = 52,994 to 52,988 mm (Bearing Shell Color Code - Green).
^
Grade C = 52,988 to 52,982 mm (Bearing Shell Color Code - Yellow).
4. NOTE: Example - *21222122* - Cylinder Bore and Piston
The cylinder bore grades read from LEFT to RIGHT as follows: