Tomei Powered PISTON KIT User Manual

Page 17

4. PISTON & CONROD INSTALLATION

CAUTION

■ Check the Piston Pin hole metal flash errors around the edges. Deburr any that is found.

These can cause problems if they are not checked and addressed before assembly, which can
lead to engine failure.

■ If you find problems with either the Piston & or Piston Pin, then do not use them.

(1) PISTON PIN INSPECTION

① Check the Piston and Piston Pin edges for metal

flash errors. If found, then use a 400 grit sandpaper
or file to radius the edges.

Clearance

R 0.3

(2)　PISTON PIN ASSEMBLY

① Heat the connecting rods small end (about 60-70°C /

140-158°F) to install the Piston. Spread engine oil or
engine assembly paste over the Piston Pin before
assembly.

② Verify that the Piston & Connecting Rod are

assembled well and that there is some free play in the
neck with some movements.

※ With the 4G63 engine, modify the small end of the

conrod for full floating. (Cannot be used with the
stock rods because of the press-fitting type.)

※ EJ用は必ず仮組みを行い、ピストン・コンロッドが

スムーズに首を振り、スラストにも動くことを確認した
後、ピストン・ピストンピン・コンロッドを分解し、
エンジンの組立手順にそって、組立を行ってください。