TM 5-3805-262-20
3-4. ENGINE TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECT ION
CORRECTIVE ACTION
3. ENGINE HARD TO START OR WILL NOT START (EXHAUST SMOKE) (Cont).
Step 2. 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 e d
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
when using it. 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 i m m e d i a t e l y . I f c o n t a c t w i t h s k i n o r c l o t h e s i s m a d e , f l u sh
with large amounts of water.
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 e s
with water 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 re
b r e a k i ng
P-D-680.
connections using clean cloths moistened with cleaning solvent
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 on
pump.
Connect a zero to 50 psi pres-
sure gage to elbow port from
which plug was removed (port
is 1/8 NPTF).
Tell assistant to crank engine
for 30 seconds while you watch
pressure gage.
Pressure gage should indicate
20 to 30 psi.
a . I f p r e s s u r e g a g e i n d i c a t e s
20 to 30 psi, disconnect
zero to 50 psi pressure
gage from elbow port.
Reinstall plug in elbow
p o r t .
Go to step 3 below.
3-11
