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Home >> Mazda >> 2005 >> B4000 SE, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Engine Mechanical) >> Overhaul >> Cylinder Block Assembly >> Piston Rings

Piston Rings

WARNING: This page is about a different car, the 2002 Mazda B3000 and 2001 Mazda B3000. However, it is still accessible from the selected car via links, so may be relevant.
  1. Select rings for bore diameter. Place ring in cylinder bore in which it will be installed. Use piston to square ring in bore and place ring below normal ring wear area. Measure ring end gap. If ring end gap is too small, remove material from end of ring. If ring end gap exceeds specification, try another ring set. See PISTONS, PINS & RINGS  table under ENGINE SPECIFICATIONS.
  2. Check side clearance of rings after installing on piston. Ensure clearance is within specification around entire circumference. Replace piston and/or rings if clearance is not as specified. See PISTONS, PINS & RINGS  table under ENGINE SPECIFICATIONS. Ensure rings are properly spaced on piston before installing pistons into cylinder. See Fig 1.
Fig 1: Positioning Piston Ring End Gaps
G90A15479Courtesy of FORD MOTOR CO.
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