Synchronizer

NOTE: Ford does not provide a TDC (Top Dead Center) mark or determination procedure for this engine in this vehicle.
ALLDATA users have reported success using aftermarket tools to determine TDC on this engine.

Synchronizer - 4.0L (Push Rod)







REMOVAL

CAUTION: Do not turn the camshaft during the removal and installation procedure or the fuel system timing will be out of time with the engine and possibly cause engine damage.

NOTE: Prior to the removal of the camshaft position (CMP) sensor, set the No. 1 cylinder to top dead center (TDC) of the compression stroke. Then note the position of the CMP sensor electrical connector. Installation procedures require that the electrical connector be located in the same position.

1. Remove the camshaft position (CMP) sensor. For additional information, refer to Camshaft Position (CMP) Sensor R&R.






2. Remove the camshaft synchronizer bolt.






3. NOTE: The oil pump driveshaft might not come out with the camshaft synchronizer. If so, retrieve the oil pump driveshaft before proceeding.

Remove the camshaft synchronizer.

INSTALLATION

CAUTION: After installation, do not loosen the synchronizer bolt and rotate the synchronizer assembly. The synchronizer assembly is not adjustable. Do not loosen the synchronizer bolt after the alignment tool has been removed in order to align the CMP electrical connector for any reason. If the electrical connector is not in the correct position, the synchronizer assembly must be removed, the alignment tool and the assembly reinstalled if the engine has not been rotated from top dead center (TDC) of the compression on the No. 1 cylinder.






1. CAUTION: A special tool must be used during the installation of the replacement synchronizer assembly. Failure to follow this procedure will result in the fuel system being out of time with the engine, possibly causing engine damage.

Install the special tool by rotating the tool until it engages the notch in the camshaft synchronizer housing and the armature.






2. CAUTION: It is very important to coat the gear on the camshaft synchronizer with super premium motor oil. Failure to do so could result in gear failure.

NOTE: The synchronizer will rotate slightly as the synchronizer gear engages the camshaft gear. When the synchronizer is fully installed the arrow on the special tool should point to 15 degrees off the engine centerline to the right.

Install the camshaft synchronizer.






3. Position the clamp and install the bolt.

4. Remove the special tool.
5. Install the camshaft position (CMP) sensor.