MTU Detroit Diesel 183 Series Technical Publication page 205

Task Description
03-8312 Starter Ring Gear Replacement
Preparatory operation:
Flywheel removed (03-8001).
1 Ring gear
2 Flywheel
20080/1 E 98-12
Heat to between 200°C and 230°C .
Starter ring gear replacement
Heat ring gear and remove.
Heat new ring gear to between 200°C and 230°C
(yellow temper colour) and fit.
For engines that have a hole-circle diameter of 450 mm
for securing coupling, after assembly the ring gear must
be bored and provided with thread M10x1.5.
Notes
After assembly, the max. ring gear radial runout must
not be exceeded, see the Tolerance and Wear Limits
List 03-8312.
Grease ring gear prior to initial operation.
Group
Subgroup
Page
Notice!
Risk of injury due to heat!
03
8312
1