Oldsmobile 22545577 Camshaft Assembly, Intake

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After the camshaft, the lifters, timing chain, and sprockets should be installed to complete the installation.

To do this, the operator requires special tools. Removing the timing chain and sprockets entail unplugging the negative battery cable. The subsequent steps are taking out the timing chain housing-to-camshaft housing bolts, removing the ignition coil and module assembly, and disconnecting an Idle speed power steering pressure switch. The power steering pump as well as brackets need to be removed first then followed by removal of power steering pump drive pulley. Remove oil/air separator as an assembly with hoses attached, then remove fuel rail from cylinder head. At rear for exhaust, unplug oil pressure sending unit wire and unbolt engine lifting bracket. Both intake and exhaust: Loosen camshaft housing-to-cylinder head bolts in 1/4-turn increments while reversing tightening sequence. Remove housing from cylinder head and then remove camshaft cover as well as housing bolts. Very gently lift the camshaft out of the housing. Remove old gasket material, clean surfaces. Pull oil seal from intake camshaft. Remove lash adjusters keeping them organized. Inspect lash adjusters visually; measure bore, check lash adjuster diameters anyway. When installing new gasket, position camshaft housing with lubricated components in it followed by installation of lash adjusters and lubricating lip on oil seal (intake cam). Install cam shaft up in its bearing with dowel pin UP in front sprocket hole on gear side of engine block! Apply pipe sealant to bolt threads, install new housing seals, install cam shaft cover with bolts making sure that oil seal depth does not exceed 0.020 inches from outside face of end cap or bearing holder flange that provides a leak-free joint between two components; tighten these down in order specified by manufacturer's instructions until tightened properly according specifications listed under "tightening torque" section of their website; make certain there is no excess around edges which could cause damage during handling process or while being installed onto other parts such as valve cover gasket's edge. Power steering pump pulley must be installed again along with all other parts previously removed before this can happen, so don't forget about changing oil filter first too! If you are installing new lash adjusters or are experiencing lash adjuster noise, follow a bleed procedure to warm up the engine and increase the engine speed until the noise goes away. Road-test vehicle and check for leaks.

An alternate method for measuring camshaft lobe lift if the cylinder head(s) have been removed involves measuring the lobe at its highest point and the base circle perpendicular to the lobe using a micrometer. Subtracting the base circle measurement from the lobe height gives the lobe lift.