M33 PowerKit Engine
Operating and Maintenance Manual
DPK-MAN-EN-M33-0000-19-12-20
Société Internationale des Moteurs Baudouin Baudouin.com
Technoparc du Brégadan, 13260 Cassis, France (T) +33 488 688 500 (F) +33 488 688 501 25 of 55
SAS au capital de 33 311 180 € │R.C. Marseille 509 985 735 │Siret 509 985 735 00026
TVA intracommunautaire: FR 79 509 985 735 │ APE: 28111 – 08
B50 Lubrication System
M33 Series Diesel Engine Overall Layout of lubrication system
6M33 Series engines are equipped with a lubrication system including an oil cooler.
12M33 Series engines are equipped with a lubrication system including two oil coolers.
The gear driving oil pump is located at the low front of the engine.
Many engine parts are lubricated by oil pressure through piping and crankcase hoses.
Oil filters
6M33 Engine range is equipped with a lubricating system including 3 full flow oil filters.
On the mechanical injection pump version, a centrifugal oil filter is also fitted.
12M33 engine range is equipped with a lubricating system including 6 full flow oil filters
and two centrifugal oil filters.
a) "Full flow" filters fitted in series on the circuit.
These cartridges are equipped with a by-pass valve allowing the continuity of the
engine lubrication even in case of a sudden clogging.
b) Centrifugal oil filter
The centrifugal oil filter of the 6M33MP is installed in bypass on left side of the
engine. Centrifugal oil filters of the 12M33 are installed in bypass on both side of the
engine.
1- Oil Sump
2- Suction straine
3- Oil pump
4a- Centrifuge filte
4b- Oil Filte
5- Oil Coole
5a- Bypass Valve
5b- Pressure Relief
Valve
6- Main Oil Gallery
7a- Piston Spray
nozzle
7b- Camshaft bearings
7c- Cylinder head
lubricating oil pipe
7d- Main bearing
8a- Piston
8c- Tappet
9a- Conrod
10a- Conrod bearings
10c- Rocker arm shaft
and rocker arm
11- Turbocharge
12- Lubricating oil pipe
of fuel injection
pump
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