Valve Train Components IMPORTANT: Store all reusable components in an exact order, so they may be reassembled in the same position from which they were removed. Clean • All parts in clean solvent and dry them with compressed air. • Make sure the oil passages through the pushrods are clear. Inspect • Valve rocker arms and balls at their mating surfaces. These surfaces should be free from wear or damage. • Valve rocker arm areas that contact the valve stems and the socket areas that contact the ends of the pushrods. These areas should be free of wear or damage. • Valve rocker arm nuts. • Valve pushrod ends for scoring, roughness, or bends.
- Roll the pushrod on a flat surface to determine its straightness. If the rod is bent, the rod will not roll freely. Replace if necessary. Figure 12-47 Installing Oil Pump Screen Inspect • With the shaft extension installed on the pump, turn the drive shaft by hand to check for smooth operation. NOTICE: Be careful of twisting, shearing, or collapsing the pipe when installing it to the pump. A damaged pipe can cause lack of lubrication and engine failure. 8 . Pickup screen and pipe. A . If the pickup screen and pipe assembly was removed, it should be replaced with a new part. Loss of press fit condition could result in an air leak and loss of oil pressure. B .
Mount the oil pump in a soft-jawed vise. C . Apply sealer to the end of the pipe. D . Tap the pickup screen and pipe into place, using J 21882 and a hammer. E . The pump screen must be parallel with the bottom of the oil pan when installed. 9 . Oil pump drive shaft and connector. G643 (E) Service Manual Chapter 3. Engine Mechanical System 85