Craftsman Marine CM4.33 / CM4.42 — Remove the fuel filter / fit the fuel filter
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
- Do not smoke when working at or around the fuel system and avoid open fire.
Procedure
- Close off the fuel supply to the engine.
- Remove the entire filter with the aid of a special tool; collect remaining fuel.
- Clean the surface to touch the engine before fitting the filter.
- Grease the rubber ring with clean engine oil and fill the filter with clean diesel fuel.
- Position the filter against the filter housing and tighten it with one half to three quarters of a turn.
- Clean the filter of the fuel lift pump and reopen the cock of the fuel supply.
- Bleed the fuel system after changing the element.
Tools required
- Special filter tool Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Tighten one half to three quarters of a turn.
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.