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: Fuel / Injection Timing Adjustment
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 10-4320-348-14 (5) Rotate flywheel clockwise and confirm that fuel injection pump is producing adequate pressure to crack the injection nozzle.  With the fuel tank, fuel hose, and overflow hose installed, the injection pressure must be tested for proper pressure.  (Refer to para 4.26). (6) Set speed control lever handle to run position. (7) Set decompression lever to downward position. (8) Rotate flywheel clockwise until the decompression lever releases to upward position. (9) Continue to slowly rotate the flywheel until the T position mark (1) aligns with the alignment mark (2) on the cylinder block. (10) Set the decompression lever to start (downward) position. (11) Turn  the  flywheel  first  clockwise,  then  counterclockwise  about  30  degrees  from  the  T  mark  to  make  sure fuel is discharged from the fuel injection pump outlet.  Repeat steps f through i if necessary to inject fuel. (12) Turn  the  flywheel  clockwise  slowly  until  fuel  just  begins  to  flow  from  the  pump  outlet.    Note  the  timing position on the flywheel when fuel starts to flow. (13) Repeat 3 or 4 times to make sure the reading is correct. (14) The correct reading should be at 14 degrees, plus or minus 1 degree. (15) If the injection timing is incorrect, refer to ADJUSTMENT procedure to correct. e. Adjustment. (1) Fuel / Injection Timing Adjustment. NOTE Perform  the  following  steps  to  adjust  fuel  injection  timing  after  the  timing  has  been checked several times and incorrect timing is indicated. (Refer to Figure 5-7) (a) The fuel injection timing is adjusted by adding or removing shims (7) to  speed  up  or  slow  down  the actual fuel injection. NOTE Each 0.0039 inch (0.01 mm) added slows timing by one degree.  Each 0.0039 inch (0.01 mm) removed speeds up timing by one degree.  Shims are available in 0.0078 inch (0.2 mm) or 0.0117 inch (0.3 mm) sizes. Changes in 0.0039 Inch (1 mm) units can be affected by using combinations of 0.0078 inch (2 mm) and 0.0117 inch (0.3 mm) shims. (b) Remove fuel injection pump. (c) Add or remove shims (7) to achieve a timing of 14 degrees, plus or minus 1 degree before top dead center. (d) Install fuel injection pump and repeat test. 5-19

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

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business