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ENGINE 273 MPFI 71 ENGINE TAPPET SETTING ( VALVE CLEARANCE ) Precaution: • Ensure that engine is in cold condition while check- ing tappet setting on vehicle. • Remove cylinder head cover by unscrewing the six hexagonal mounting bolts. • Ensure that Pistons are at their TDC (Top Dead Centre) position when clearance is to be checked. • Check valve clearance with the help of feeler gauge at exhaust & inlet valve, by inserting the feeler gauge between cam lob & tappet. NOTE Valve clearance at Inlet valve = 0.15 mm . Valve clearance at Exhaust valve = 0.25 mm. • If the clearances are not within the permissible limit, replace the respective shims with available sizes as indicated in the following table . Procedure for replacement of valve shim: • Remove cam shaft bearing caps (B) by unscrewing the hexagonal mounting bolts (A). • Take out the cam shaft (C) from its position. • Take out the tappet (D) from its position. • Follow the following procedure for selection of shim (E) sizes. Valve clearance at Exhaust valve = 0.25 mm. Valve clearance at Inlet valve = 0.15 mm .