Hi I am Vortash I have heard that the oil pump bearings do make a noise when they are failing this allows the oil impeller to touch the sides of the pump wall and make a scraping noise .. I have never actually heard it myself .. I would have tested oil pressure from the pump before re assembly and probably fitted a new oil pump at any case as the engine was stripped down that far ?. hope you find your problem sorted soon good luck regards Vortash
Removal & Installation
3.5L Engine
Fig. Timing belt routing and timing marks-3.5L Engine
Fig. Timing belt and related components-3.5L Engine
Fig. Adjusting the tensioner pulley-3.5L Engine
Fig. Measuring the auto tensioner rod-3.5L Engine
Kia_Sedona_2002-2006
Timing Chain, Sprockets, Front Cover & Seal
Removal & Installation
3.8L Engine
Fig. Timing chain and related components-3.8L Engine
Fig. Left timing chain markings and installation: (D) exhaust camshaft sprocket (C) intake camshaft sprocket-3.8L Engine
Fig. Right timing chain markings and installation: (C) exhaust camshaft sprocket (B) intake camshaft sprocket-3.8L Engine
Fig. Sealant application (1 inch bead width)-3.8L Engine
Fig. Timing cover sealant application-3.8L Engine
Fig. Timing cover gasket installation (A) gaskets-3.8L Engine
Fig. Timing cover bolt torque sequence and specification-3.8L Engine
Fig. Fig. 3: Remove the water pump mounting bolts
Fig. Fig. 4: Pull the water pump assembly off of the engine and inlet pipe
Fig. Fig. 5: Open the water pump housing and examine for cracks or damage
Fig. Fig. 6: Replace the water pump housing gasket using a scraper tool
Fig. Fig. 7: Always keep the water pump's mounting bolts lined up with their correct mounting holes
Fig. Timing chain link and sprocket timing mark alignment-4.6L engine
Fig. Sealant application to the front cover mating surface-4.6L engine
Fig. Front cover bolt tightening sequence-4.6L engine
Fig. Front cover-to-oil pan bolt tightening sequence-4.6L engine
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