DETROIT DIESEL 53
1.3.7 Crankshaft Pulley
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
Fig. 3 Cone Mounted Pulley
torque.
engine
5. Install a rigid type pulley on an In-line
12. When pulleys stamped with the letter "U" (in a
with installer J 7773 as shown in Fig. 2. Then remove
square box) are used, tighten the 3/4"-l6 bolt to 290-
the installer.
310 lb-ft torque.
14. Install and adjust the belts
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