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Yanmar — Lube oil and filter replacement

Maintenance · Lubrication system

From a Yanmar service manual covering: 2TNV70, 3TNV70, 3TNV76. Check it applies to your exact model before use.

Applies to: Yanmar 2TNV70, Yanmar 2TNV70 engine, Yanmar 3TNV76 engine

Before you start

  • Hot oil can cause burns.

Parts for this job

Part numbers from the service-parts lists for Yanmar 2TNV70, Yanmar 3TNV76 engine. Verify against your serial number before ordering; some links are affiliate links.

Procedure

  1. Run engine until lube oil is warm, then stop.
  2. Remove oil filler cap and drain lube oil through drain plug.
  3. Turn lube oil filter counter-clockwise with filter wrench to remove.
  4. Clean oil filter mounting face.
  5. Moisten new oil filter gasket with lube oil.
  6. Install filter until contact, then tighten 3/4 turn (20-24 N·m).
  7. Fill with specified lube oil to dipstick range.
  8. Run five minutes, check leaks, and recheck level after ten minutes.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Full service-parts list: Yanmar 2TNV70 →, Yanmar 3TNV76 engine →

Source: Yanmar 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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