How to Replace the Timing Chain on an Oldsmobile Cutlassby Michael DicksonUpdated November 07, 2017
Items you will need
GM pulling tool
Many cars, including the newer Oldsmobile Cutlasses, are equipped with timing chains instead of timing belts. According to Chilton mechanics, the placement of an Oldsmobile Cutlass timing chain makes it an easier timing chain to replace than many others. The timing chain lasts longer, is stronger and does not require replacement (unless damaged) as often as its predecessor, the timing belt, which had a recommended replacement of 60,000 miles. Some auto repair experience is useful before tackling this job at home.
Removing the Timing Chain
Disconnect the negative battery cable and remove the front timing chain cover. Align the marks on the camshaft sprocket with the crankshaft sprocket.
Remove the timing chain tensioner upper bolt. Loosen the timing chain tensioner Torx bolt but do not remove it.
Remove the camshaft sprocket and timing chain. Remove the crankshaft sprocket using a General Motors specific pulling tool or equivalent.
Installation of the Timing Chain
Using a GM pulling tool or equivalent, install the crankshaft sprocket. Make sure that the sprocket is fully seated against the crankshaft.
Compress the tensioner spring and insert a nail or cotter pin into the tensioner hole to hold it in place. Align the crankshaft and camshaft timing marks with the tab on the tensioner.
Install the tensioner bolt. Install the timing chain onto the camshaft and crankshaft sprocket.
Align the camshaft dowel with the dowel hole in the camshaft sprocket and install the sprocket. Fully seat the camshaft sprocket to the camshaft by hand.
Tighten the timing chain tensioner to 18 ft. lbs. and the camshaft sprocket bolt to 77 ft. lbs. Remove the pin or nail from the timing chain tensioner. Replace the timing chain cover and connect the negative battery cable.
- Kerry A. Freeman, Peter M. Conti, W. Calvin Settles; Chilton’s Auto Repair Manual 1991-1995, (1994); W.G. Nichols Publisher