Special Tools Required
Remove the piston from the engine block.
Assemble the special tool as shown.
Temporarily install the pilot collar, O.D. 18 mm (A) over the pilot pin (B), and adjust the piston base head (C) as shown, then tighten the screws (D). Remove the pilot collar.
Assemble and adjust the length of the adjustable piston pin driver head (A) and insert adjust (B) to 45 mm (1.77 in).
With the arrow on top of the piston pointing up, place the
piston/connecting rod assembly (A) on the piston base head (B).
Be sure you position the recessed flat area of the piston against the area of the piston base head (C) as shown.
Press the piston pin (D) out with the adjustable piston pin driver head and insert adjust (E), the pilot collar (F), and a hydraulic press.
NOTE: Inspect the piston, the piston pin, and the connecting rod when they are at room temperature.
Measure the diameter of the piston pin.
Piston Pin Diameter
17.996пјЌ18.000 mm (0.70850пјЌ0.70866 in)
Zero the dial indicator to the piston pin diameter.
Check the difference between the piston pin diameter and the piston pin hole diameter in the piston.
Piston Pin-to-Piston Clearance
0.010пјЌ0.017 mm (0.00039пјЌ0.00067 in)
Check the difference between the piston pin diameter and connecting rod small end diameter.
Piston Pin-to-Connecting Rod Interference
0.019пјЌ0.036 mm (0.00075пјЌ0.00142 in)
Assemble the piston and the connecting rod with the arrow (A) and the embossed mark (B) on the same side.
Insert the pilot collar (A) into the piston and the connecting rod.
With the arrow on top of the piston and the embossed mark on the connecting rod facing up, place the piston/connecting rod assembly (B) on the piston base head (C). Be sure you position the recessed flat area of the piston against the area of the piston base head (D) as shown.
Press the piston pin (E) in with the adjustable piston pin driver head and insert adjust (F) and a hydraulic press.
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