Ford Fiesta Quiz
Engine

Piston. Disassembly and Assembly of Sub-Systems

In this manual: Engine
Service Information — 27Suspension — 48Transmission — 9Brake System — 52Steering — 21Engine — 140Manual Transmission, Clutch, Transfer Case and Power Transfer Unit — 48Exhaust System — 6Fuel System — 21Climate Control System — 58Instrumentation and Warning Systems — 26Battery and Charging System — 20Infotainment Systems — 41Lighting — 29Power Distribution — 11Electronic Function Group — 30Body and Paint — 275Frame and Mounting — 3
10steps
~60min
3/5difficulty
Done 0 of 10

Materials

Name Specification
Engine Oil — SAE 5W-20 — Semi-Synthetic Engine Oil
XO-5W20-Q1SP		 WSS-M2C945-B1

DISASSEMBLY

  1. Remove and discard the piston rings.
    • Remove and discard the piston pin retainers.
    • Remove the piston pin.
  3. Remove the piston from the connecting rod.
  4. Inspect the piston.
    Refer to: Piston Inspection (303-00 Engine System - General Information, General Procedures).

ASSEMBLY

  1. Points to the front of the engine.
  2. Install the piston on the connecting rod.
  3. Lubricate the piston pin with clean engine oil and install it.
    Material: Engine Oil — SAE 5W-20 — Synthetic Engine Oil / XO-5W20-Q1SP (WSS-M2C945-B1)
  4. Install new piston pin retainers.
  5. Lubricate with clean engine oil and install new piston rings.
    Material: Engine Oil - SAE 5W-20 - Synthetic Engine Oil / XO-5W20-Q1SP (WSS-M2C945-B1)
    1. Top compression ring gap location.
    1. Bottom compression ring gap location.
    1. Upper oil control ring rail gap location.
    1. Expander ring gap location.
    1. Lower oil control ring rail gap location.

Test yourself

A quick Ford Fiesta quiz: every answer comes with an explanation and a link to the manual page.