ARIA

ENGINE 70 ASSEMBLY CLEARANCE Connecting rod clearance (Big End) 0.013 TO 0.067 mm Connecting rod Axial play (Big End) 0.1mm TO 0.35mm Connecting rod small end bush clearance 0.020 to 0.039 Camshaft Bearing Clearance 0.02mm TO 0.062mm Camshaft bearing axial play 0.18mm TO 0.25mm Valve Stem Clearance (Inlet) 0.02mm TO 0.046mm Valve stem Clearance (Exhaust) 0.040mm TO 0.066mm Piston Clearance on skirt (Bore to piston thrust side) 0.032mm TO 0.042mm Main bearing clearance 0.026mm To 0.085mm Camshaft to roller finger follower clearance, inlet 0 Camshaft to roller finger follower clearance, exhaust 0 PISTON & PISTON BORE SIZES Stage Grade Cylinder bore dia. mm Piston stamped dia. mm Standard A 84.995/85.005 84.921/84.931 B 85.005/85.015 84.931/84.941 C 85.015/85.025 84.941/84.951 Repair I A 85.095/85.105 85.021/85.031 B 85.105/85.115 85.031/85.041 C 85.115/85.125 85.041/85.051 Repair II A 85.195/85.205 85.121/85.131 B 85.205/85.215 85.131/85.141 C 85.215/85.225 85.141/85.151 Piston to bore clearance(mm) 0.084-0.064 Weight variation in each set of 4 piston to be within 1.5gm PISTON RINGS Type of ring Rings Axial clearance Butt clearance in cylinder bore (mm) 1st Compression Ring 2.5(Nominal) 0.25 to 0.40 2nd Compression Ring 1.99/1.97 0.04/0.08 0.4/0.6 3rd Oil Control Ring 2.99/2.97 0.03/0.07 0.25/0.45