1.0 Specifications
DETROIT DIESEL 53
ENGINE PARTS (Standard Size, New)
MINIMUM
MAXIMUM
LIMITS
Thrust washer thickness
.1190"
.1220"
End play (end thrust clearance)
.0040"
.0110"
.0180"
Connecting Rod Bearing
Inside diameter (vertical axis, in-line engine)
2.5015"
2.5035"
Bearing-to-journal clearance (in-line engine)
.0015"
.0045"
.0060"
Bearing thickness 90 from parting line (in-line)
.1245"
.1250"
.1230"
Main Bearings
Inside diameter (vertical axis, in-line engine)
3.0020"
3.0030"
Bearing-to-journal clearance (in-line engine)
.0010"
.0040"
.0060"
Bearing thickness 90 from parting line (in-line)
.1245"
.1250"
.1230"
Camshaft
Diameter (at bearing journals)
2.1820"
2.1825"
Runout at center bearing (when mounted on end.
bearings)
.0020"
End thrust
.0050"
.0190"
.0150"
Thrust washer thickness
.2080"
.2100"
Balance Shaft
Diameter (at bearing journals)
2.1820"
2.1825"
End thrust
.0190"
.0050"
.0150"
Thrust washer thickness
.2080"
.2100"
Camshaft and Balance Shaft Bearings
lnside diameter
2.1870"
2.1880"
Clearance--bearing-to-shaft
.0045"
.0080"
.0060"
Camshaft and Balance Shaft Gears
Backlash
.0070"
.0030"
.0050"
Idler Gear (In-line
Engines)
Backlash
.0070"
.0030"
.0050"
Idler gear bearing inside diameter
2.1860"
2.1870"
Idler gear hub outside diameter
2.1825"
2.1835"
Clearance--bearing.to-hub
.0070"
.0025"
.0045"
End play
.0170"
.0060"
.0130"
Thrust washer thickness
.1180"
.1200"
Crankshaft Timing Gear
Backlash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
.0070"
.0030"
.0050"
Inside diameter (gear) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.0590"
4.0580"
Outside diameter (crankshaft). . . . . . . . . . . . . . . . . . . . . .
4.0600"
4.0610"
Page 6