2023年3月16日星期四

How to Install a Volvo Engine Cover Guide

Volvo MD2010, MD2020, MD2030, MD2040 Engine cylinder head installation
 1. Clean the surface of the cylinder head and   cylinder
    block. Remove any rust or soot from the     screw hol es and threads for the cylinder     head screws.
2. Fit on the new cylinder head gasket.
3. Apply grease containing molybdenum    disulphide
   on the cylinder head screws.
   NOTE! The screws are surface treated and    must
   not be cleaned with a steel brush.
   Note: I f the cylinder head is painted the    mating surfaces for cylinder head screws    must be free from
   paint, otherwise the clamping force in the    screw
   union will be adversely affected.
4. Check that the tubular pins (guides) are    fitted in the
   block. Place the two rear cylinder head    screws in
   the cylinder head and fit the hea

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   5.  Tighten the cylinder head screws in three stages as per the following. See tightening diagrams Fig. 30-
31.

1st tightening
MD2O10. MD2020 10 Nm (7.40 ft.lbs)
MD2030 20 Nm (14.80 ft.lbs)
MD2040 30 Nm (22.10 ft.lbs
2nd tightening
MD2O10, MD2020 20 Nm (14.80 ft.lbs)
MD2030 35 Nm (25.80 ft.lbs)
MD2040 70 Nm (51.70 ft.lbs)
Final tightening
MD2O10, MD2020 35-40 Nm (26-30 ft.lbs)
MD2030 50-53 Nm (37-39 ft.lbs)
MD2040 90-95 Nm (66-70 ft.lbs

6. Fit the pull rods (2), valve caps (3,     MD2040 and
l ater versions of 2010, 2020,2030) and rocker
  mechanism (1).
7. Adjust the valve clearance as per   directions on
  page 34. Fit the valve cover.
  Fig. 33. Fitting of oil pressure pipe    (cylinder block -
  cylinder head / rocker mechanism)

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8. Fit the oil pressure pipe between the block    and
5. Tighten the cylinder head screws in three     stages as cylinder head (rocker mechanism on    MD2040).
  per the following. See tightening diagrams     Fig. 30-
  31.
 Tightening torque 10-13 Nm (7.4-9.6 ft.lbs).
 32
9. MD2O10, MD2020:Fit the circulation pump.
  MD2030:Fit the circulation pump and    thermostat
  and spring (see Fig. 35).
10. Fit the glow plug, Tightening torque: see    Technical
 data. Fit the conductor rail and connect the   electric
 cable.

11. Fit the copper gaskets, heat shields     (MD2030) and
  i nserts (MD2O10-MD2030) to the injectors as   per
  Fig. 34.
  Fit the injectors. Use socket L=80 mm (3.15   in),
  key width = 22 mm (MD2O10-MD2030), and 27 mm
  ( MD2040).
  Tightening torque MD2O10, MD2030, MD2040:
  60-70 Nm (44.3-51.7 ft.lbs)
  Tightening torque MD2030:
  80-85 Nm (59.0-62.7 ft.lbs).
  12. Put on new copper gasket and fit the     fuel leak pipe.
  Tighten the nuts and connect the return     pipe.
  13. Fit the delivery pipe complete.     Tightening torque
  20-25 Nm (14.8-18.4 ft.lbs).
14. MD2O10, MD2020, MD2030: Fit the induction    manifold.
  MD2040: Fit the inlet pipe complete with air   filter.
  Fig. 35. Fitting of thermostat (MD2O10,     MD2020,
  MD2030) and expansion tank.

15. MD2O10, MD2020: Fit the rubber seal,      thermostat
(3) and spring (2) in the heat exchanger      housing (1)
    Fig. 36. Fitting of thermostat (MD2040)

16. Fit the expansion tank complete with heat      exchanger. Connect the hoses to the heat      exchanger
  housing and refrigerant pump. Tighten the     hose
  clips.

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17. MD2040: Fit the rubber seal, thermostat     and spacer
    ring in the heat exchanger housing. Fit     the cover
    over the thermostat.
18. Connect the electric cables to the oil        pressure relay, and to the refrigerant        temperature relay and
    sensor (where appropriate).
19. Fit the relay box.
20. MD2O10, MD2020: Fit the alternator and    clamp. Fit
   the drive belt.
   I
   Note: I t should be possible to press in    the belt approx. 10 mm (.40 in) between    the pulleys.
21. Connect the hose to the sea water pump and    tighten'the clip. Connect the exhaust    pipe.
   22. Fill with refrigerant. See    "Replenishment of refrigera t on page 64.
23. Connect the battery cables. Open the fuel    cocks
   and bottom valve. Start the engine and    check that 5.
   no leakage occurs

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