DETROIT DIESEL 53
Clean and dry all of the parts thoroughly.
The finished inside face of each end plate must be
smooth and flat. Slight scoring may be cleaned up with
a fine grit emery cloth. If the surface is badly scored,
replace the end plate.
Inspect the surfaces of the rotors and the blower
housing. Remove burrs or scratches with an oil stone.
Examine the rotor shaft, gear or drive coupling for
burred or worn serrations.
Inspect the blower gears for excessive wear or damage.
Check the bearing and oil seal contact surfaces of the
rotor shafts and end plates for scoring, wear or nicks.
If an oil seal sleeve is used on the rotor shaft, it can be
replaced as follows:
Fig. 12 - Installing Rear End Plate
Place sleeve remover J 23679-2 over the rotor shaft and behind the oil seal sleeve.
Back out the center screw of one gear puller J 21672-7 and attach the puller to the sleeve remover with three
1/4 "-20 x 3 " bolts and flat washers.
Fig. 13 - Installing Blower Rotor Gears
Fig. 14 Measuring Rotor Lobe to Housing Clearance
July, 1972 SEC. 3.4 Page 7