Craftsman Marine CM4.33 / CM4.42 — Checking and cleaning of the cooling water strainer
Maintenance
For the Craftsman Marine CM4.33 / CM4.42, from the Craftsman Marine owner's manual.
Applies to: Craftsman Marine CM4.33, Craftsman Marine CM4.42, Mitsubishi CM4.33 engine, Mitsubishi CM4.42 engine
Before you start
- If air is sucked into the system on account of a badly closing filter cover, there is a severe risk of overheating of the engine.
Procedure
- Close the raw water seacock and remove the cover from the filter housing.
- Inspect for clogging by dirt.
- Clean the filter element at least twice a year or whenever necessary.
- Refit the cover making sure it shuts the unit off perfectly.
Specs & values
- Clean the filter element at least twice a year.
Full service-parts list: Craftsman Marine CM4.33 →, Craftsman Marine CM4.42 →
Source: Craftsman Marine owner'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.