OEM 2004 Ford Expedition Camshaft

2004 Ford Expedition Camshaft Parts Q&A

• Q: How to service and repair the camshaft on 2004 Ford Expedition?

  A: Bearing in mind safety, the first step to camshaft maintenance starts with timing chain removal before rotating crankshaft or camshaft movement using installed cylinder heads to minimize piston and valve damage. Move on to the removal of the camshaft roller followers. When servicing the Romeo engine (4.6L) workers must start by removing its camshaft sprocket components including the bolt and sprocket piece. All service providers must note down the initial placement of camshaft bearing caps as an essential first step before disconnecting bolts and removing bearing caps and camshaft. The one bearing cap with an oil flow restriction groove should be inspected for foreign materials to maintain its operational integrity. When servicing the 5.4L Windsor engine proceed with removing its camshaft bearing caps exactly as described for the previous engines while properly inspecting all caps after cleaning them. When installing the valve cover engage only plastic scraping tools to clean sealing surfaces while using silicone gasket remover with metal surface prep to prepare the valve cover mating surface. Clean engine oil should be used to lubricate camshaft journals and bearing caps before original camshaft and bearing cap placement while bolting loosely and applying specified installation torque sequence. Tighten the camshaft sprocket bolt on Romeo engines according to two steps: torquing to 40 Nm (30 ft. lbs.) followed by another 90° rotation. Apply the same bearing cap installation procedure used for the Windsor engine camshaft operations. The final task involves installing all camshaft roller followers followed by timing chains installation.