5.3.2. Oil filter z This oil filter mounted in this engine is a full flow type, so it is necessary to replace it with a new one at the specified intervals. EFM2010I 5.3.3. Diagnostics and troubleshooting Maintenance of Major Components - 130 - Complaints Possible causes Corrections 1. Oil consumption excessive z Poor oil z Oil seal or packing leaky z Pistons or piston rings worn z Cylinder liner worn z Piston rings sticking z Valve guide oil seals or valve guides, or valve stem worn z Use suggested oil z Replace z Replace pistons and/or piston rings z Replace cylinder liner z Replace pistons and/or piston rings z Replace 2.
Oil pressure too low z Poor oil z Relief valve sticking z Restrictions in oil pump strainer z Oil pump gear worn z Oil pump feed pipe cracked z Oil pump defective z Oil pressure gauge defective z Various bearings worn z Use suggested oil z Replace z Clean strainer z Replace z Replace z Correct or replace z Correct or replace z Replace 3. Oil deteriorates quickly z Restriction in oil filter z Gases leaking z Replace filter element z Replace piston rings and cylinder liner