Thunderbird L4-140 2.3L SOHC Turbo (1984)
Timing Belt: Service and Repair
Camshaft Timing Check
An access plug is provided in the cam drive belt cover so that camshaft timing can be checked without removal of the cover or any other parts.
1. Remove access plug from cam drive belt cover.
2. Set crankshaft to TDC by aligning the TC mark on the timing belt cover with notch on crankshaft pulley.
CAUTION: Always rotate crankshaft clockwise, which is the normal direction of rotation. Reverse rotation (counterclockwise) may cause the
timing belt to jump time due to the arrangement of the timing belt tensioner.
3. Look through the access hole in the belt cover to be sure that the timing mark on the camshaft drive sprocket is aligned with the pointer on the
inner timing belt cover assembly.
4. Remove the distributor cap and check that the distributor rotor is facing the No. 1 position on the distributor cap.
5. If belt timing is satisfactory, install distributor cap and belt cover access plug. If belt timing is unsatisfactory, continue on to "Adjustment or
Replacement" procedure.
Adjustment Or Replacement
