Cooling system

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    Skin fitting brass 1/2

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  • Hose barb male thread 3/4 x 16 mm

    Hose barb male thread 3/4 x 16 mm

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  • Hamilton Conical rod anode for Hamilton 912 - Idrojet 292 Zinc

    Hamilton Conical rod anode for Hamilton 912 – Idrojet 292 Zinc

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  • Volkswagen Marine pencil anode, zinc only  Ø 14 L. 20

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    BMW pencil anode for cooler Ø13 L.50 Zinc

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  • Disc anode for Stern 100*40mm Aluminium

    Disc anode for Stern 100*40mm Aluminium

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  • Volvo Penta pencil anode Ø15 L.30, Zinc

    Volvo Penta pencil anode Ø15 L.30, Zinc

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  • CR Brass hose tail (male) 1/2" x 18mm

    CR Brass hose tail (male) 1/2″ x 18mm

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  • CR Messing slangtule (buitendraad) 3/8" x 20mm

    CR Brass Hose tail (male) 1/2″ x 16mm

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  • CR Messing slangtule (buitendraad) 3/8" x 20mm

    CR Brass Hose tail (male) 1/2″ x 8mm

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    CR Brass Hose tail (male) 3/8″ x 12mm

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    Max Prop – 6 holes prop anode MP70R Zinc

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  • Standard Shaft anode Ø 38mm 1"1/2, Zinc

    Standard Shaft anode Ø 38mm 1″1/2, Zinc

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  • Impeller pump Volvo Penta 2003T, 2003TB 858150 Cooling water pump

    Impeller pump Volvo Penta 2003T, 2003TB 858150 Cooling water pump

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  • Volvo Penta expansion plug for cylinder head - 477024

    Freeze cap Freeze plug 49.21mm

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  • Volvo Penta Connector pipe exhaust bend 859836

    Volvo Penta Connector pipe exhaust bend 859836

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  • Cummins pencil anode Ø 12,5 L.50,8  plug th. 3/8'' bspt Zinc + Brass

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  • Flex-o-fold propeller prop side anodes Aluminium - sold in pairs

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  • Scandinavian type bolt-on anode 0,16kg, Aluminium

    Scandinavian type bolt-on anode 0,16kg, Aluminium

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  • Bolt on anode 0,6kg with slotted holes H.C.200, Zinc

    Bolt on anode 0,6kg with slotted holes H.C.200, Zinc

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  • Thermostaat Volvo Penta MD2 MD3 MD6 MD7 MD11 MD17

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  • CR Brass Through-hull outlet Convex standard 1"

    CR Brass Through-hull outlet Convex standard 1″

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  • CR Brass Valve 3/8"

    CR Brass Valve 3/8″

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The various types of cooling water systems

There are three types of cooling systems:

  1. Direct cooling: a cooling water system whereby water is pumped into the engine block by a impeller pump.
  2. Indirect cooling: a separate cooling water system (also called intercooling or heat exchanger system) in which there is coolant in the engine and cooling water is pumped through a heat exchanger by means of an impeller pump.
  3. Indirect keel cooling : a keel cooling system, in which cooling pipes with coolant run under the boat. With the latter system, a wet exhaust is not possible unless you have installed an additional impeller pump or electric pump.

Dry or wet exhaust?

Choose a wet exhaust. With a wet exhaust, the noise is muffled by the water. You can also use a rubber exhaust hose because of the lower temperature. <read more>