Checking The Cylinders And Pistons

CONNECTING RODS AND PISTONS

EAS26030

REMOVING THE CONNECTING RODS AND                                                    1
PISTONS                                                                         4
The following procedure applies to all of the con-
necting rods and pistons.                                                                             3
1. Remove:
 • Connecting rod cap “1”                                                2
NOTE:                                                               1
Identify the position of each connecting rod so
that it can be reinstalled in its original place.

2. Remove:                                               4. Remove:
 • Big end bearings                                       • Top ring
   (from the connecting rods and connecting rod           • 2nd ring
   caps)                                                  • Oil ring
NOTE:                                                    NOTE:
Identify the position of each big end bearing so         When removing a piston ring, open the end gap
that it can be reinstalled in its original place.        with your fingers and lift the other side of the ring
                                                         over the piston crown.
3. Remove:
 • Piston pin clips “1”
 • Piston pin “2”
 • Piston “3”
 • Connecting rod “4”
ECA13810

CAUTION:
Do not use a hammer to drive the piston pin
out.
NOTE:
• For reference during installation, put an identi-      EAS24410
  fication mark on each piston crown.                    CHECKING THE CYLINDERS AND PISTONS
• Before removing the piston pin, deburr the pis-        The following procedure applies to all of the cyl-
  ton pin clip’s groove and the piston’s pin bore        inders and pistons.
  area. If both areas are deburred and the piston        1. Check:
  pin is still difficult to remove, remove it with the     • Piston wall
  piston pin puller set “5”.                               • Cylinder wall
                                                             Vertical scratches → Rebore or replace the
            Piston pin puller set                            cylinder, and replace the piston and piston
             90890-01304                                     rings as a set.
            Piston pin puller                            2. Measure:
             YU-01304                                      • Piston-to-cylinder clearance
                                                         ▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
                                                         a. Measure cylinder bore “C” with the cylinder
                                                            bore gauge.

                                                     5-105