1.5 Flywheel Housing
DETROIT DIESEL 53
Fig. 9 · Checking Flywheel Housing Concentricity
13. Check the flywheel housing concentricity and bolting flange face with tool J 9737-01 as follows:
a. Refer to Fig. 9 and thread the base post J 9737-3 tightly into one of the tapped holes in the flywheel. Then
assemble the dial indicators on the base post.
b. Position the dial indicators straight and square with the flywheel housing bell face and inside bore of the bell.
Make sure each indicator has adequate travel in each direction.
Fig. 10 - Checking Bore Runout