Order this information in Print

Order this information on CD-ROM

Download in PDF Format

     

Click here to make tpub.com your Home Page

Page Title: APU VALVES
Back | Up | Next

Click here for a printable version

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Combat
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
USMC
   
Products
  Educational CD-ROM's
Printed Manuals
Downloadable Books
   

 

TM 5-4210-233-14&P-1 5-80.  APU VALVES This task covers: a. Adjustment b. Follow-on Maintenance TOOLS REQUIRED EQUIPMENT CONDITION Tool Kit, General Mechanics, Automotive Rocker Arm Cover Removed (see para 5-72.) (Appendix B, Section III, Item 1) a. Adjustment. NOTE Check valve clearance when the engine is at room temperature, about 70 deg. F (21 deg. C). (1) Turn     the     flywheel     until     the     cylinder     is     on     its compression   stroke.      Use   a   socket   wrench   on   the flywheel screw. NOTE To determine if the cylinder is in its compression stroke, observe the action of the push rod as the engine is rotated in a clockwise direction.    The  exhaust  valve  push  rod  will  be  in  its  lowest position and the intake valve push rod will be moving downward. As the piston reaches top dead center, the flywheel timing mark should  be  aligned  with  the  timing  pointer  and  the  valve  push rods stationary. (2) Now  turn  the  flywheel  clockwise  for  an  additional  10  to 45 degrees.  There is no timing mark for this position, so it  must  be  estimated.    With  the  piston  located  in  this position,  it  will  be  in  its  power  stroke  with  both  valves completely closed. (3) Cylinder  head  bolt  torques  should  be  44-46  lb  ft  (60-62 N-m).  To change the valve clearance, adjust the locknut which   secures   the   rocker   arm   to   the   cylinder   head. Loosen  the  locknut  to  increase  clearance  and  tighten  it to reduce clearance. (4) Check valve clearance with a feeler gauge between the rocker   arm   and   the   valve.      Increase   or   reduce   the clearance  until  the  proper  gap  is  established.    Correct valve  clearance  is  0.01  1-inch  (0.28  mm)  intake  and 0.008-inch (0.20 mm) exhaust. b. Follow-on Maintenance. (1) Install rocker arm cover (see para 5-72). 5-406

Privacy Statement - Press Release - Copyright Information. - Contact Us - Support Integrated Publishing