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Northern Lights M844LW3 / M844W3 — Install siphon break (optional)

Installation · Penetration panel assembly (item 13) / siphon break

For the Northern Lights M844LW3 / M844W3, from the Northern Lights service manual.

Applies to: Northern Lights M844LW3, Northern Lights M844W3

Before you start

  • Generator sets with wet exhaust installed near or below the vessel's water line must use a siphon break to prevent backflow of water into the engine.

Procedure

  1. Position the siphon break a minimum of 12 inches above the vessel's loaded water line.
  2. Remove white plastic hole plugs from the penetration plate and replace with two rubber grommets (item 21).
  3. Install sound foam (item 22) to the underside of the penetration plate.
  4. Pass seawater pump output hose through the front hole and expansion tank hose through the side hole.

Specs & values

  • Siphon break mounted a minimum of 12 inches above the vessel's loaded water line

Full service-parts list: Northern Lights M844LW3 →, Northern Lights M844W3 →

Source: Northern Lights service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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