Ford Focus Quiz
Powertrain

Piston Ring End Gap

In this manual: Powertrain
Vehicle - General — 4Accessories — 40Body — 237Chassis — 113Electrical — 19HVAC — 44Powertrain — 292
~1min read
1special tools
Special Tool(s)
Feeler Gauge Set
303-D027 (D81L-4201-A) or equivalent
NOTICE: Use care when fitting piston rings to avoid possible damage to the piston ring or the cylinder bore. NOTE:

Piston rings should not be transferred from one piston to another.

NOTE:

Refer to the appropriate Section 303-01 for the specification.

NOTE:

The cylinder bore must be within specification for taper and out-of-round.

  1. Use a piston without rings to push a piston ring in a cylinder to the bottom of ring travel.
  1. Use the Feeler Gauge Set to measure the top piston ring end gap and the second piston ring end gap.

Test yourself

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