DETROIT DIESEL 53
1.0 Specifications
SPECIFICATIONS
can be tolerated in used engine parts and still ensure
Specifications clearances and wear limits are listed
satisfactory performance. It should be emphasized that
below. It should be specifically noted that the
the figures given as "Limits" must be qualified by the
clearances apply only when all new parts are used at
judgement of personnel responsible for installing new
the point where the various specifications apply. This
parts. These wear limits are, in general, listed only for
also applies to references within the text of the
the parts more frequently replaced in engine overhaul
manual. The column entitled "Limits" in this chart
work. For additional information, refer to the text.
lists the amount of wear or increase in clearance which
TABLE OF SPECIFICATIONS, NEW CLEARANCES AND WEAR LIMITS
These limits also apply to oversize and undersize parts
MINIMUM
MAXIMUM
LIMITS
ENGINE PARTS (Standard Size, New)
Cylinder Block
Block bore:
4.5195"
4.5215"
4.5235"
Diameter (top) .......................................................
4.4865"
4.4880"
4.4900"
Diameter (center) .........................................................
4.3575"
4.3565"
Diameter (bottom) ............................................
4.3595"
.0020"
.0015"
Out-of-round ..............................................................
.0015"
.0020"
Taper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder liner counterbore:
4.8350"
Diameter ...........................................................
4.8200"
..................................................
.3000"
Depth
.3020"
Main bearing bore: ................................................................
3.2510"
3.2520"
Inside diameter (vertical axis, in-line engine) ..............
Top surface of block:
.0030"
..........................................
Flatness--transverse (all)
.0060"
Flatness--longitudinal(3 cyl.) .............................................
Depth of counterbores (top surface):
Cylinder head seal strip groove . . . . . . . . . . . . . . . . . . . .
.0970"
.1070"
Water holes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.1090"
.1150"
Oil holes
.......................................
.0920"
.0980"
Cylinder Liner
Outside diameter (upper seal ring surface) . . . . . . . . . . . .
4.4850"
4.4860"
Outside diameter (lower seal ring surface) ....................
4.3550"
4.3560"
Inside diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.8752"
3.8767"
.0030"
Out-of-round (inside diameter) .....................................
.0020"
.0020"
Taper (inside diameter) .................................................
.0010"
.0500"
Depth of flange BELOW block ........................................
.0465"
.0500"
.0015"
.0015"
Variation in depth between adjacent liners ...................
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