Wartsila 2-stroke Engines. Guide for judging condition of relevant piston-running components (liners, pistons and piston rings)/Вяртсила 2-х тактные двигатели. Руководство по оценке состояния соответствующих компонентов поршня (гильзы, поршни и поршневые кольца)

Издание на английском языке
This booklet shall serve as a guide for judging the condition of relevant components (liners, pistons and piston rings) for the condition-based maintenance during piston and liner overhauls of engines with latest piston-running standard with full CC (chromium ceramic) piston ring packages or CC top ring and lower RC (running-in coating) rings for smaller bores.

См. также Техническая эксплуатация одно- и двухтопливных двигателей Wartsila-Sulzer: Учебное пособие

Contents
1 Purpose of this booklet
2 Requirements to extend piston TBO
3 Preparation for piston underside inspection
4 Tools and equipment
5 Wear modes
5.1 Piston ring
5.2 Typical liner wear patterns
6 Condition assessment for piston rings and cylinder liner
6.1 Normal and acceptable conditions
6.1.1 Piston rings
6.1.2 Liner
6.2 To be monitored
6.2.1 Piston rings
6.2.2 Liner
6.3 Action required
6.3.1 Piston rings
6.3.2 Liner
6.4 How to identify a scuffed liner
6.5 Possible actions for scuffed liners (temporary measures)
6.6 Pre-requisites for a cylinder liner before it can be re-honed
7 Piston crown condition
8 Sample pictures for a visual inspection report
9 Template example for regular measurements and visual inspection report
10 List of technical bulletins and service letters
11 Notes
12 Contacts