SERVICE MANUAL TIMING, GEAR TRAIN & FRONT COVER Section 7 15. Install the vibration damper as follows: a. "RUBBER" Vibration Dampers: 1. Heat the damper in boiling water for a period NOT to exceed one hour. 2. Lightly coat the key and keyway areas with No.  2 (BLACK) Permatex. 3. Install the vibration damper by aligning the key and keyway then push. 4. Remove all excess Permatex from the retainer-mounting surface of the damper  to  insure  proper  retention  of the damper assembly to the crankshaft. 5. Secure damper with the retaining plate and  torque  cap  screws  to  142  N•m (105 Ibf-ft). 6. Install damper plate if equipped. NOTE:  DO NOT heat vibration damper for more than one hour.  The elastic member can be damaged.  DO NOT attempt to install the damper cold. b. Viscous Vibration Dampers: 1. Heat the crankshaft pulley to approximately   400°.      Use   a   388°F thermomelt   crayon   (see   tool   list   for tool No.) to determine temperature. NOTE:    The  marked  surface  will  melt  and  become  a glossy liquid. 2. Lightly coat key and keyway areas with No.    2  (BLACK)  Permatex  and  install key. 3. Using   asbestos      gloves,   align   the keyway with the key in the  crankshaft and push the pulley onto the shaft until it contacts the oil pump drive spline. 4. Install  retainer  plate  and  cap  screws. Torque cap screws to  170  N•m  (1  25 Ibf-ft). 5. Assemble viscous damper to crankshaft pulley with hardened washers and cap screws.  Torque cap screws to 47 N•m (35 Ibf-ft). 16. On-Highway Trucks only: Install the steering pump (if equipped).  Refer to CTS-2001. 17. Install    the    freon    compressor    and    idler    (if equipped).  Refer to the following:   a. Construction  Equipment  -  ISS-1541,    "Air Conditioning Service Manual". b. On-Highway Trucks - CTS-2001 c. Agricultural Equipment 18. Install the air compressor and idler (if equipped). Refer to the following:   a. Construction Equipment "Air Compressor". b. On-Highway Trucks CTS-2001 c. Agricultural Equipment - 19. Install  the  alternator  or  idler  pulley  (depending upon application) from its mounting bracket. NOTE:  It is recommended that the engine be run at 1000 RPM from 3 to 5 minutes after engine assembly. At   this   RPM   tappets   are   under   lighter   load,   thus assuring initial lubrication at the tappets  and  tappet bores. CGES-185-3 PRINTED IN UNITED STATES OF AMERICA Page 17