Aura L4-2.4L (2008)
Piston: Specifications
Piston Rings
Piston Ring End Gap - First Compression Ring............................................................................................................................0.15-0.30 (0.006-0.012 in.)
Piston Ring End Gap - Second Compression Ring.......................................................................................................................0.20-0.45 (0.008-0.018 in.)
Piston Ring End Gap - Oil Control Ring - Rails...........................................................................................................................0.15-0.51 (0.006-0.020 in.)
Piston Ring to Groove Clearance - First Compression Ring.....................................................................................................0.04-0.08 (0.0015-0.0031 in.)
Piston Ring to Groove Clearance - Second Compression Ring............................................................................................0.030-0.070 (0.0012-0.0030 in.)
Piston Ring to Groove Clearance - Oil Control Ring............................................................................................................0.027-0.176 (0.0011-0.0069 in.)
Piston Ring Thickness - First Compression Ring..................................................................................................................1.170-1.190 (0.0461-0.0469 in.)
Piston Ring Thickness - Second Compression Ring.............................................................................................................1.471-1.490 (0.0579-0.0587 in.)
Piston Ring Thickness - Oil Control Ring - Rail - Maximum......................................................................................................................0.473 (0.0186 in.)
Piston Ring Thickness - Oil Control Ring - Spacer..............................................................................................................1.460-1.537 (0.0575-0.0605 in.)
Pistons and Pins
Pin - Piston Pin Clearance to Connecting Rod Bore.............................................................................................................0.007-0.026 (0.0003-0.0010 in.)
Pin - Piston Pin Clearance to Piston Pin Bore......................................................................................................................0.004-0.014 (0.0002-0.0006 in.)
Pin - Piston Pin Diameter..................................................................................................................................................19.995-20.000 (0.7872-0.7874 in.)
Pin - Piston Pin End Play......................................................................................................................................................0.410-1.266 (0.0161-0.0498 in.)
Piston - Piston Diameter - @14.5 mm up.........................................................................................................................87.967-87.982 (3.4633-3.4638 in.)
Piston - Piston Pin Bore Diameter....................................................................................................................................20.004-20.009 (0.7876-0.7878 in.)
Piston - Piston Ring Groove Width - Oil Control.....................................................................................................................2.51-2.53 (0.0988-0.0996 in.)
Piston - Piston Ring Groove Width - Second............................................................................................................................1.52-1.54 (0.0598-0.0606 in.)
Piston - Piston Ring Groove Width - Top.................................................................................................................................1.23-1.25 (0.0484-0.0492 in.)
Piston - Piston to Bore Clearance.........................................................................................................................................0.010-0.041 (0.0004-0.0016 in.)