Operation - Low Pressure Pump - Dodge Sprinter 2006 Manual

14 - 16 FUEL DELIVERY
1 - FUEL SUPPLY TO PUMP
2 - VALVE
3 - VALVE SPRING
4 - CHECK BALL
5 - HIGH PRESSURE PASSAGE
OPERA TION - LOW PRESSURE PUMP
Wh en t h e ign it ion swit ch is on , fu sed ba t t er y posi-
t ive volt a ge is su pplied t o t h e elect r ic lift pu m p,
wh ich will r u n for 20–30 secon ds a n d t h en st op. If
t h e en gin e is cr a n ked, t h e pu m p will begin r u n n in g
im m edia t ely su pplyin g fu el t h r ou gh fu el filt er a n d
on t o t h e h igh pr essu r e pu m p. Th e lift pu m p a n d low
pr essu r e fu el cir cu it oper a t e a t a pr essu r e bet ween
3.8 -5.5 ba r (55 - 80 psi.).
Fig. 7 PRODUCING HIGH PRESSURE
6 - PISTON
7 - PISTON SPRING
8 - CAM
9 - ECCENTRIC SHAFT
10 - CIRCULAR PASSAGE
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