TM 5-3805-262-20
3-4. ENGINE TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. ENGINE STARTS BUT WILL NOT RUN.
Step 1.
Remove engine right side panels (page 9-14).
Dry cleaning solvent P-D-680 used to clean parts is toxic and flammable.
W e a r p r o t e c t i v e g o g g l e s a n d g l o v e s a n d u s e o n l y i n a w e l l v e n t i l a t ed
a r e a . A v o i d c o n t a c t w i t h s k i n,
e y e s a n d c l o t h e s a n d d o n ’ t b r e a t he
vapors. Do not use near open flame or excessive heat and don’t smoke
w h e n u s i n g i t . Failure to do so could cause serious injury. If you be-
c o m e d i z z y w h i l e u s i n g c l e a n i n g s o l v e n t , g e t f r e s h a i r a n d m e d i c a l
a t t e n t i o n
with large
with water
i m m e d i a t e l y .
If contact with skin or clothes is made, flush
a m o u n t s o f w a t e r . I f c o n t a c t w i t h e y e s i s m a d e , w a s h e y es
and get medical aid immediately.
D i r t o r o t h e r f o r e i g n m a t t e r c a n d a m a g e f u e l i n j e c t i o n p u m p a n d f u el
i n j e c t o r s a n d c a u s e e n g i n e s t a r t i n g p r o b l e m s . D i r t a n d f o r e i g n m a t t er
c a n e n t e r f u e l l i n e s w h e n y o u d i s c o n n e c t t h e m . T o p r e v e n t t h i s f r om
h a p p e n i n g , c l e a n a l l f i t t i n g s , p l u g s , a n d f u e l l i n e c o n n e c t i o n s b e f o r e
breaking connections using clean cloths moistened with cleaning solvent
P-D-680.
Remove plug from elbow in-
s t a l l e d i n f u e l i n j e c t i o n
pump.
Connect a zero to 50 psi
pressure gage to elbow port
from which plug was removed
(port is 1/8 NPTF).
T e l l a s s i s t a n t t o c r a n k e n-
gine for 30 seconds while
you watch pressure gage.
Pressure gage should indi -
cate 20 to 30 psi.
a. If pressure gage indicates 20 to 30 psi, disconnect zero to 50
psi pressure gage from elbow port, reinstall plug, and go to
step 2 below.
b. If pressure gage does not indicate 20 to 30 psi, disconnect zero
to 50 psi pressure gage from elbow port, reinstall plug, and go
to page 3-41, fuel system troubleshooting, MALFUNCTION 1.
3-15
