Mustang GT V8-4.6L SOHC VIN X (1998)
Camshaft: Service and Repair
Installation
1. Clean and inspect valve cover, engine front cover and cylinder head sealing surfaces.
2. Position camshafts on cylinder head. Apply oil to journals and lobes of camshaft.
NOTE: Steps 2 through 11 will install only one camshaft. If both camshafts are being serviced, repeat Steps 2 through 11 to install the other
camshaft.
3. Install and seat camshaft bearing caps. Hand-start 14 bolts.
4. Tighten camshaft bearing cap retaining bolts in sequence to 8-12 Nm (71-106 in. lbs.).
NOTE: Each camshaft bearing cap is tightened individually.
5. Loosen 14 camshaft bearing cap retaining bolts approximately two turns or until head of bolt is free.
6. Retighten all bolts in sequence to 8-12 Nm (71-106 in. lbs.).
NOTE: Camshaft should turn freely with a slight drag.
7. Check camshaft end play using Dial Indicator with Bracketry Tool-4201-C or equivalent.
8. If necessary, install Cam Positioning Tool Adapters 303-413 (T92P-6256-A) and Cam Positioning Tool 303-380 (T91P-6256-A) on flats of
camshaft and install camshaft sprocket spacer and camshaft sprocket. Install bolt and washer and tighten to 110-130 Nm (82-95 ft. lbs.).
9. Install Valve Spring Compressor 303-381 (T91P-6565-A) under camshaft and on top of valve spring retainer. Install valve tappet.
NOTE: Valve Spring Spacer 303-382 (T91P-6565-AH) must be installed between valve spring coils and the camshaft MUST be at base circle
prior to compressing valve spring. Rotate camshaft as necessary until all rocker arms are installed.
10. Compress valve spring far enough to install rocker arm.
11. Repeat Steps 8, 9 and 10 until all rocker arms are installed. Remove Valve Spring Spacer from valve spring.
12. Rotate crankshaft clockwise 45 degrees.
CAUTION: Crankshaft must only be rotated in the clockwise direction and only as far as top dead center (TDC).
