11997880 Screw Volvo.Penta
MD22A; MD22A-A; MD22L-A, MD22L; MD22P; MD22L-B
Screw
Price: query
Rating:
Compatible models:
MD22A; MD22A-A; MD22L-A
MD22L; MD22P; MD22L-B
Volvo.Penta
Volvo Penta entire parts catalog list:
- Water Pump » 11997880
Information:
The use of Extended Life Coolant (ELC) or Heat Transfer Fluid (HTF) in G3600 Engine cooling systems causes seals to deteriorate. Coolant leaks will result. Do not use ELC or HTF in G3600 Engines. Only use coolant that is recommended in Operation and Maintenance Manual, SEBU6400, "Cat Gas Engine Lubricant, Fuel, and Coolant Recommendations".
Illustration 1 g03794309
In-line engine
(1) Coolant outlet to the heat exchanger (aftercooler and oil cooler circuit)
(2) Coolant outlet to the heat exchanger (jacket water)
(3) Water manifold
(4) Turbocharger
(5) Aftercooler
(6) Separate Circuit Aftercooler (SCAC) water pump
(7) Jacket water pump
(8) Jacket water inlet elbow
(9) Engine oil coolers
Illustration 2 g03794310
In-line engine
(2) Coolant outlet to the heat exchanger (jacket water)
(3) Water manifold
(4) Turbocharger
(5) Aftercooler
(6) SCAC water pump
(10) Return line for coolant from the turbocharger
(11) Supply line for coolant to the turbocharger
Illustration 3 g03806131
In-line engine
(12) Customer compressor coolant return
(13) Customer compressor coolant supply
(14) Jacket water inlet pressure ports
(15) SCAC water inlet pressure ports
(16) Oil sampling valve
(17) Scheduled Oil Sampling (SOS) valve
Illustration 4 g03794306
Vee engine
(1) Coolant outlet to the heat exchanger (aftercooler and oil cooler circuit)
(2) Coolant outlet to the heat exchanger (jacket water)
(3) Water manifold
(4) Turbocharger
(5) Aftercooler
(6) SCAC water pump
(7) Jacket water pump
(8) Jacket water inlet elbow
(9) Engine oil coolers
Illustration 5 g03794308
Vee engine
(2) Coolant outlet to the heat exchanger (jacket water)
(3) Water manifold
(4) Turbocharger
(5) Aftercooler
(6) SCAC water pump
(8) Jacket water inlet elbow
(10) Return line for coolant from the turbocharger
(11) Supply line for coolant to the turbocharger
Illustration 6 g03794746
Vee engine
(1) Coolant outlet to the heat exchanger (aftercooler and oil cooler circuit)
(3) Water manifold
(4) Turbocharger
(5) Aftercooler
(7) Jacket water pump
(8) Jacket water inlet elbow
(10) Return line for coolant from the turbocharger
(11) Supply line for coolant to the turbocharger
Illustration 7 g03806265
Vee engine
(12) Customer compressor coolant return
(13) Customer compressor coolant supply
(14) Jacket water inlet pressure ports
(15) SCAC water inlet pressure ports
(16) Oil sampling valve
(17) Scheduled Oil Sampling (SOS) valveJacket Water Cooling System
Water pump (7) (Illustrations 1 and 4) is on the right front side of the engine. The water pump has a gear that is driven by the lower right front gear group. Coolant from the expansion tank enters the inlet to the pump. The rotation of the impeller in the water pump pushes the coolant through a divided elbow attached to the water pump. Part of the coolant flows to the side of the cylinder block through inlet elbow (8). The remainder of the coolant flows to aftercooler (5).The coolant inside the cylinder block flows around the cylinder liners. The water jacket is smaller near the top of the cylinder liners. This shelf causes the coolant to flow faster for better cooling of the cylinder liner. The coolant is pumped up through water directors and into the cylinder heads. The coolant flows through passages around the valves and around the exhaust gases in the cylinder head.The coolant flows out of the cylinder head through an elbow into water manifold (3). The coolant flows through the manifold to coolant outlet (2). The coolant exits the outlet and flows through an on engine mounted water temperature regulator housing and back through the heat exchanger. The coolant then flows back to the expansion tank.Coolant flows from the water jacket at the rear of the cylinder block through supply line (11) to turbocharger (4). Coolant from the turbocharger is returned to the cylinder block through return line (10).A customer supplied vent line is required from the top of the turbochargers to the expansion tank, as well as the top of the jacket water and auxiliary water regulator housing. The vent line from the connection must be straight and the vent line must have a slight upward slope. The vent must not be obstructed.Aftercooler and Oil Cooler System
Water pump (6) (Illustrations 1 and 4) is on the left front side of the engine. The water pump has a gear that is driven by the lower left front gear group. Coolant from the heat exchanger enters the inlet to the water pump. The rotation of the impeller in the water pump pushes the coolant to the engine oil cooler bonnet. Coolant flow is divided at the engine oil cooler bonnet. Part of the coolant flows to engine oil coolers (9). The remainder of the coolant flows to aftercooler (5). After the coolant flows through the aftercooler and through the engine oil coolers, the coolant returns to the heat exchanger through outlet (1).A makeup line from the expansion tank to the coolant inlet helps maintain the coolant to the correct level.A customer supplied vent line is required between the top of the housing for the engine oil coolers to the expansion tank. The vent line from the connection must be straight and the vent line must h
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