2003 FORD MUSTANG Workshop Manual

Page 889 of 4378

FORD MUSTANG 2003  Workshop Manual GENERAL PROCEDURES 
Piston —
to Cylinder Bore Clearance 
1. Subtract the piston diameter from the cylinder bore diameter to find the piston- to-cylinder bore 
clearance. 
SECTION 303-
00: Engine Sys

Page 890 of 4378

FORD MUSTANG 2003  Workshop Manual GENERAL PROCEDURES 
Piston —
Selection 
NOTE:  The cylinder bore must be within the specifications for taper and out-of- round before fitting a 
piston. 
1. Select a piston size based on the cylinde

Page 891 of 4378

FORD MUSTANG 2003  Workshop Manual Klj .  2 ba
  22003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

Page 892 of 4378

FORD MUSTANG 2003  Workshop Manual GENERAL PROCEDURES 
Piston —
Ring End Gap 
 CAUTION: Use care when fitting piston rings to avoid possible damage to the piston ring 
or the cylinder bore. 
 CAUTION: Piston rings should not be trans

Page 893 of 4378

FORD MUSTANG 2003  Workshop Manual Klj .  2 ba
  22003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

Page 894 of 4378

FORD MUSTANG 2003  Workshop Manual GENERAL PROCEDURES 
Piston —
Ring-to-Groove Clearance 
1. Inspect the piston for ring land damage or accelerated wear. 
2. Measure the piston ring- to-groove clearance. 
�z Refer to the appropriate

Page 895 of 4378

FORD MUSTANG 2003  Workshop Manual Klj .  2 ba
  22003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

Page 896 of 4378

FORD MUSTANG 2003  Workshop Manual GENERAL PROCEDURES 
Piston —
Pin Diameter 
1. Measure the piston pin diameter in two directions at the points shown. Verify the diameter is  within specification. 
�zRefer to the appropriate section