Dodge 2001 Ram 1500 Owner's Manual page 1411

9 - 264 ENGINE 5.9L DIESEL
ENGINE BLOCK (Continued)
Fig. 68 Refacing Dimensions of the Cylinder Block
CYLINDER BLOCK REFACING DIMENSIONS
DIMENSION A
1st Reface
2nd Reface
Dim (A) Total
323.00 mm ±
Dim. B (STD.)
322.75 mm ±
1st Reface
322.50 mm ±
2nd Reface
(2) The upper right corner of the rear face of the
block must be stamped with a X when the block is
refaced to 0.25 mm (0.0098 inch). A second X must be
stamped beside the first when the block is refaced to
0.50 mm (0.0197 inch) - (Fig. 69).
Fig. 69 Stamp Block after Reface
(3) Consult the parts catalog for the proper head
gaskets which must be used with refaced blocks to
ensure proper piston-to-valve clearance.
0.25mm (0.0098 in.)
0.25mm (0.0098 in.)
0.50 mm (0.0197 in.)
DIMENSION B
(12.7165 in. ±
0.10 mm 0.0039 in.)
(12.7067 in. ±
0.10 mm 0.0039 in.)
(12.6968 in. ±
0.10 mm 0.0039 in.)
STANDARD PROCEDURE-CYLINDER BORE -
DE-GLAZE
(1) New piston rings may not seat in glazed cylin-
der bores.
(2) De-glazing gives the bore the correct surface
finish required to seat the rings. The size of the bore
is not changed by proper de-glazing.
(3) Cover the lube holes in the top of the block
with waterproof tape.
(4) A correctly honed surface will have a cross-
hatch appearance with the lines at 15° to 25° angles
(Fig. 70). For the rough hone, use 80 grit honing
stones. To finish hone, use 280 grit honing stones.
Fig. 70 Cylinder Bore Crosshatch Pattern
(5) Use a drill, a fine grit Flex-hone and a mixture
of equal parts of mineral spirits and SAE 30W engine
oil to de-glaze the bores.
(6) The crosshatch angle is a function of drill speed
and how fast the hone is moved vertically (Fig. 71).
(7) Vertical strokes MUST be smooth continuous
passes along the full length of the bore (Fig. 71).
Fig. 71 De-Glazing Drill Speed and Vertical Speed
(8) Inspect the bore after 10 strokes.
(9) Use a strong solution of hot water and laundry
detergent to clean the bores. Clean the cylinder bores
immediately after de-glazing.
(10) Rinse the bores until the detergent is removed
and blow the block dry with compressed air.
BR/BE