13-32
      
Cylinder bore, checking
 
    
Piston and cylinder bore dimensions  
Engine codes AHA, ATQ 
Note:  
Replacement pistons are only available in the basic dimension. 
CAUTION! 
DO NOT measure cylinder bore dimensions while the cylinder block 
is mounted on the engine stand. The cylinder block is stressed and 
deformed by its own weight under these conditions and the 
measurements will not be accurate.  -  Measure at three locations diagonally in crosswise direction -A- and 
lengthwise direction -B-. 
   Inner bore gauge: 50-100 mm (1.96-3.94 in.)
   Deviation from nominal size: max. 0.08mm (0.0031 in.)Reconditioning 
dimension  Piston diameter  
Cylinder bore 
diameter  
Basic dimension   82.48 mm (3.2472 
in.)  82.51 mm (3.2484 
in.)  
1st oversize   82.74 mm (3.2575 
in.)  82.76 mm (3.2578 
in.)  
Pa
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ylinder block, crankshaft and fl
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