1.0
SPECIFICATIONS
DETROIT DIESEL 53
4. Remove the bearing cap. The flattened plastic strip will be found adhering to either the bearing shell or the
crankshaft.
5. Compare the width of the flattened plastic strip at its widest point with the graduations on the envelope (Fig. 1). The
number within the graduation on the envelope indicates the bearing clearance in thousandths of an inch. Taper may be
indicated when one end of the flattened plastic strip is wider than the other. Measure each end of the plastic; the
difference between the readings is the approximate amount of taper.
CAMSHAFT CUP PLUG INSTALLATION
When an oil leak occurs at the drive plug area in the front end of the camshaft, install a cup plug in the end of the
camshaft rather than removing and replacing the drive plug.
NOTE: It is not necessary to remove the camshaft from the engine when installing the cup plug.
Install the cup plug as follows:
1. Clean the hole in the front end of the camshaft and apply Permatex No. 1 sealant, or equivalent, to the outer
diameter of the cup plug.
2. Install the plug to a depth of .180" -.210" with tool J 24094.
Page 2
