Trans Sport V6-191 3.1L (1990)
Timing Chain: Service and Repair
Fig. 7 Valve Timing Marks
1.
Remove front cover as described under FRONT COVER.
2.
Place No. 1 piston at top dead center with marks on camshaft and crankshaft sprockets aligned, Fig. 7.
3.
Remove camshaft sprocket bolts, then remove sprocket and timing chain. If sprocket does not come off easily, tap lower edge of sprocket with a
plastic mallet.
4.
Install timing chain on camshaft sprocket. Hold sprocket vertically with chain hanging down and align marks on camshaft and crankshaft
sprockets.
5.
Align dowel pin hole in sprocket with dowel pin on camshaft, then install sprocket on camshaft.
6.
Using camshaft sprocket attaching bolts, draw sprocket on camshaft. Tighten bolts to specifications.
7.
Lubricate timing chain with engine oil, then install front cover as outlined previously.
