Northern Lights M175C2 — Cooling System Flush

Maintenance

For the Northern Lights M175C2, from the Northern Lights operator's manual.

Applies to: Northern Lights M175C2

Procedure

1. Stop engine and allow it to cool.
2. Close seacock and remove pressure cap carefully.
3. Open cooling system air vent on turbocharger if fitted.
4. Open drains on exhaust manifold and engine block; remove thermostats.
5. Pour clean water into expansion tank until drain water is clear.
6. Close drains and install thermostats with new gaskets.
7. Fill with recommended coolant mixture and vent air.
8. Open seacock, start engine, check for leaks, and reach operating temperature.

Full service-parts list: Northern Lights M175C2 →

Source: Northern Lights operator's 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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