SHOP MANUAL
Engine
Ch 1 page 208
L-a Check the feed pump as
described in L1.
No fuel
comes out
during
both
checks
Fuel comes
out ...
The problem may be
between the fuel tank and
the feed pump. Renew the
fuel lter as described in L2.
Repair all the faults that are
detected and continue from
S-a.
The hand pump may be faulty.
Renew the hand pump and
resume troubleshooting
from L-a.
... with the starter
motor but not with
the hand pump
... during both
checks
... with the hand pump but
not with the starter motor
Check the feed pump as
described in L3.
A little fuel
comes out
No fuel
comes out
Check the feed pump drive
as described in L4.
L-c Measure the feed pump as described
in L6.
The pressure is normal
The
pressure
is too
low
The problem may be on the
high pressure side. If the
engine can be started,
continue from H-a.
Otherwise continued from H-b.
Renew both fuel lters. Bleed the fuel
system and measure the feed pressure
as described in L6 again.
The feed
pump drive
is not working
The feed
pump is
defective
The cause may be the feed
pump drive. Also check the
high pressure pump drive as
described in L5.
Then continue from S-a.
The pres-
sure is still
too low
The pressure
is normal
The cause may have been a
blocked fuel lter. Rectify the
cause of the blockage, bleed
the system and continue
from S-a.
The cause may be the feed pump. Renew the
pump, bleed the fuel system and continue from
S-a.
L-a Low pressure check
Figure 382
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