The MMC 4B12 engine does not have hydraulic lifters, so special valve tappets are used to adjust the valve clearance. TOP 8 Timing chain kit MITSUBISHI LANCER 2009 bestseller Timing chain set TCK352 Mitsubishi LANCER 2009. Intake valves are 35.0 mm (1.38 in) in diameter, and the exhaust valves are 29.0 mm (1.14 in).
The engine has an aluminum cylinder head with two chain-driven overhead camshafts and MIVEC (MITSUBISHI INNOVATIVE VALVE TIMING ELECTRONIC CONTROL SYSTEM) for both the intake and exhaust valves (since 2011 for the intake side only). For a 2009 Mitsubishi Lancer ( 2.0 and 2.4 liter four cylinder engines ) ( timing CHAIN ) 2005 Mitsubishi lancer ES Timing chain Timing belt The Lancer ES has a timing belt that should be changed. Number of piston rings (compression / oil): The connecting rods are made of highly rigid, forged carbon steel. The pistons are made of a special aluminum alloy. The pistons are each fitted with two compression rings and a single oil ring, connecting rods are 143.75 mm (5.659 in) center-to-center long. The 4B12 has an aluminum block, cylinder bore is 88.0 mm (3.46 in) and the piston stroke is 97.0 mm (3.82 in), the compression ratio is 10.5:1.
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