Cooling system
1
MD2O10-2020
M D2040
Fig. 109. Replacing the pump wheel
2.
3.
4.
Pull and twist out the pump wheel (impeller) with a
pair of universal pliers.
M D2030
Fig.110. Positioning of the thermostat
1. Cover
Clean the housing internally. Grease in the pump
housing and inside of the cover with a little grease.
3.
MD2O10, MD2020: Release the exhaust pipe and
remove the heat exchanger housing complete. Re-
move the spring and lift out the thermostat from the
housing.
Press in the new wheel with a rotational motion
(clockwise). Fit the sealing washer on the outer
end of the centre of the wheel.
5.
Fit the cover together with a new gasket.
4.
MD2040: Remove the cover (1) on the front left-
hand side of the heat exchanger. Remove the rub-
ber ring.
6.
Open the bottom cock, or the cock on the S-drive.
Start the engine and check that no leakage occurs.
Checking the thermostat
1.
2.
Check that the thermostat closes completely.
Thermostat
Heat up water in a vessel to 68°C 1 154.4°F
(MD2O10, MD2020), or to 75°C / 167°F (MD2030,
MD2040).
Replacing the thermostat
Note: On MD2030 the thermostat is accessible after the
circulation pump has been removed. See under head-
ing "Replacing the circulation pump" on page 66.
3.
4.
Submerge the thermostat in the water. Check after
at least 3-5 minutes that the thermostat is still
closed.
Other engines:
Raise the temperature to boiling point (100°C /
212°F). Check after 3-5 minutes that the thermo-
stat has opened at least 6 mm /.02362 in
(MD2O10, MD2020), or to 8 mm /.3149 in
(MD2030, MD2040).
1.
Remove both battery leads. Drain off the water in
the fresh water system.
2.
MD2O10, MD2020: Drain off the water in the sea
water system. Remove the alternator.
Replace the thermostat if these specifications are not
met. NOTE! If the thermostat does not close completely
the engine will run at too low a temperature.
67
| Categories | Volvo Penta Manuals |
|---|---|
| Tags | Volvo Penta MD2010, Volvo Penta MD2020, Volvo Penta MD2030, Volvo Penta MD2040 |
| Download File |
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| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.25 out of 5)
Marine readers have rated Volvo Penta MD2010 MD2020 MD2030 MD2040 Workshop Manual 4.3 out of 5.0 based on 4 product reviews. GOOD AND GOODER S=GOODEST. IS BESTER
jeg skal bruge manualen , til at samle min Volvo penta md 2030 igen.
Ö, hur dka jag veta om det är bra innan jag set produkten.
Pages 58 and 59 are missing from Volvo Penta MD2010 MD2020 MD2030 MD2040 Workshop Manual. I need only these pages at present!