2000 Mitsubishi Galant timing belt installation

First thing if the belt broke then pull the head cause you bent valves if not follow this
Raise and support vehicle. Remove engine splash shield from right side wheelwell.
Lower vehicle. Support weight of engine with floor jack. If necessary, remove coolant reservoir. Remove upper engine mount located near timing belt cover. Remove all drive belts. If necessary, remove drive belt tensioner pulley bracket and power steering pump pulley. See Fig. 1. Remove water pump pulley.
Remove crankshaft pulley. Noting bolt lengths and locations, remove upper and lower timing belt cover with gasket.
CAUTION:DO NOT rotate crankshaft counterclockwise (as viewed from timing belt end of engine). If timing belt is to be reused, mark direction of rotation before removing.

Rotate crankshaft clockwise (as viewed from timing belt end of engine) until cylinder No. 1 is at TDC of compression stroke. Align timing mark on camshaft sprocket with timing mark on cylinder head. See Fig. 2.
Loosen timing belt tensioner center bolt, and move tensioner pulley toward water pump. Tighten center bolt to secure tensioner. Remove front timing belt. Remove tensioner pulley and timing belt auto tensioner.
To remove balance shaft belt, remove left balance shaft access plug from cylinder block. Insert.31" (8.0 mm) diameter Phillips screwdriver to block left silent shaft. See Fig. 3. Ensure screwdriver can be inserted at least 2.36" (59.9 mm). Remove screwdriver if it cannot be inserted at least 2.36" (59.9 mm). Rotate balance shaft one revolution and realign timing mark.
If reusing old balance shaft timing belt, mark belt with arrow to indicate rotation direction. Holding crankshaft stationary, remove front crankshaft sprocket bolt. Use gear puller to remove crankshaft sprocket from crankshaft.
Noting direction of installation, remove crankshaft sensing blade. Loosen balance shaft tensioner pulley center bolt. Remove balance shaft timing belt. Inspect timing belt. See TIMING BELT INSPECTION.