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6A – 106 ENGINE MECHANICAL
Piston Head Projection Measuring Point 1. Use a dial indicator to measure the piston projection amount. 2. Refer to the illustration for the piston head projection measuring positions.
3. Measure the points Q
R
S
T and obtain two differences Q – R and S – T on each cylinder.
Calculate the average value of the piston head 4. Obtain the maximum value in the four cylinders. value described above in accordance with the following
mm (in) Piston Projection Gasket Grade 4JA1, 4JA1TC 4JB1T Gasket Thickness (Reference)
A
0.718 – 0.773 (0.0283 – 0.0304) 0.758 – 0.813 (0.0298 – 0.0320) 1.6 (0.0630) B
0.773 – 0.819 (0.0304 – 0.0322) 0.813 – 0.859 (0.0320 – 0.0338) 1.65 (0.0650) C
0.819 – 0.874 (0.0322 – 0.0344) 0.859 – 0.914 (0.0338 – 0.0360) 1.70 (0.0669)
4JH1TC Cylinder Head Gasket Thickness mm (in) Gasket Grade Piston Projection Gasket Thickness (Reference) A
0.215 – 0.265 (0.0085 – 0.0104) 1.3 (0.5118) B
0.265 – 0.315 (0.0104 – 0.0124) 1.35 (0.5315)
C
0.315 – 0.365 (0.0124 – 0.0144) 1.4 (0.5512)
For 4JA1/4JA1T/4JB1T/4JA1TC/4JH1TC |