55
Venting the fuel system
1.
Venting screw on
3.
Overflow valve
filter mounting
4.
Pressure equalizer
2.
Hand pump
3. Pump a further 10–20 strokes with the vent
screw closed so that sufficient feed pressure is
obtained. Further venting is not normally
required.
If the injection pump still needs venting, unscrew
the connection for the overflow valve (3) at the
pump and continue hand pumping until no more
air bubbles are visible in the fuel flowing out.
Tighten the connection while the fuel is flowing
out. Pump a further 10–20 strokes so that
sufficient feed pressure is obtained.
4. Check for leaks.
Injectors
1.
Guard ring (rubber)
3.
Pressure line connection
2.
Fuel leak-off line
4.
Mounting yoke
1. Clean around the injectors.
2. Remove the delivery line and the return fuel line.
Remove the mounting yoke on the injectors.
3. Turn the injector carefully backwards and for-
wards using a wrench (size 15 mm), pulling it up
at the same time.
Note: If the injector is stuck, you must use a
special tool to remove it. The copper sleeve
around the injector may otherwise be pulled out
as well, with water in the engine as a conse-
quence.
The coolant in the freshwater system can be
drained as an extra safety measure before
removing the injectors.
4. Hand in the injectors to a an authorized service
workshop for checking.
5. Install protective ring on the injectors (1). Tight-
ening torque 50 Nm (5 kpm/36 lbf.ft.).
6. Reinstall the fuel leak-off line. Install pressure
line. Check they are straight, then tighten the
nuts. Tightening torque 15–25 Nm (1.5–2.5 kpm/
11–18 lbf.ft.).
7. Refill the engine with coolant if system was
drained. Start the engine and check for leaks.
Injectors. Check
NOTE! TAMD63, TAMD73 and TAMD74 have
pretensioned delivery pipes. These pipes
must under no circumstances be bent.
Damaged pipes should be replaced.
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Summary of Contents for TAMD63L
Page 1: ...INSTRUCTION BOOK TAMD63L P TAMD71B TAMD73P WJ TAMD74C L P ...
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Page 120: ...118 Notes 7740156 Downloaded from www volvopenta com 22 07 2009 00 44 08 ...
Page 121: ...119 Notes 7740156 Downloaded from www volvopenta com 22 07 2009 00 44 08 ...
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Page 124: ...7740156 0 English 6 2000 AB Volvo Penta SE 405 08 Göteborg Sweden www volvopenta com ...