NUMBER: 60 S.M. REF.: 1.23 ENGINE: 60 DATE: December 2002 SUBJECT: COMPACT GEAR TRAIN ASSEMBLY INTRODUCTION Detroit Diesel has released a new Compact Gear Train Assembly for the Series 60 2002 engine. This new assembly offers weight savings, noise reduction and height reduction. The bullgear is a straight cut gear that now rides on bushings. DETAILS AND REASON Series 60 2002 Engines are equipped with a new Compact Gear Train Assembly. Camshaft, Camshaft Drive Gear and Camshaft Gear Cover will be installed and removed as a assembly. For engines equipped with a Compact Gear Train Assembly remove camshaft assembly as follows. 1. Rotate the engine by hand to get the No. 1 piston at TDC.
Do this by installing the crankshaft timing pin J 45947 into its bracket and the barring engine over by hand until the timing pin drops into the locating hole in the crankshaft, the engine is now at TDC on cylinder No.1. See Figure 1.