1.3.7 Crankshaft Pulley
DETROIT DIESEL 53
Fig. 3 - Cone Mounted Pulley
5.
Install a rigid type pulley on an In-line engine with installer J 7773 as shown in Fig. 2. Then remove the installer.
7.
Slide the outer cone (Fig. 3), if used, on the crankshaft.
8.
Place the washer on the crankshaft bolt and thread the bolt into the front end of the crankshaft.
10. On in-line engines with cone mounted pulleys NOT stamped with the letter "A", tighten the 3/4 "-16 bolt to 290-300
lb-ft torque.
11. On all in-line engines with the rigid type pulleys and cone mounted pulleys stamped with the letter "A", tighten the
3/4 "-16 bolt to 200-220 lb-ft torque.
12. When pulleys stamped with the letter "U" (in a square box) are used, tighten the 3/4 '[16 bolt to 290-310 lb-ft torque.
14. Install and adjust the belts.
Page 2
