NANO

ENGINE 273 MPFI 119 ENGINE GENERAL DESCRIPTION Cylinder Block The cylinder block is made of cast aluminium alloy and has 2 cylinders arranged in-line. Crank Shaft & Main Bearings A crankshaft is supported by 3 main bearing which are of precision insert type & two crank pins on the crankshaft. Pistons, PistonRings, PistonPinsAndConnecting Rods The piston is cast aluminium alloy, and has two compression ring and one oil ring. Among two compression rings (top and 2 nd rings), the outer surface of the top ring is treated with nitriding and the 2 nd ring is plated with hard chromium for improvement in abrasion resistance. The oil ring consists of two rails and one spacer. Piston Pins made of chromium steel, have a floating fit in the pistons and connecting rods. The connecting rods are made of forged steel and the rod bearings are of precision insert type.