Crankshaft pulley and front oil seal — removal and installation Ford F150
Removal
1. Disconnect the cable from the negative battery terminal (see Engine electrical systems).
2. Remove the drivebelts (see Tune-up and routine maintenance).
3. Raise the vehicle and support it securely on jackstands.
Wrap a shop rag or a piece of drivebelt material around the pulley before installing the strap wrench
4. Use a breaker bar and socket to remove the crankshaft pulley center bolt. It will be necessary to lock the pulley in position using a strap or chain wrench. Discard the bolt and obtain a new one for installation.
5. Remove the pulley from the crankshaft with a three-jaw puller that grabs the inner portion of the hub.
Caution: An adapter should be used between the puller bolt and the crankshaft (to prevent damage to the bore and threads in the end of the crankshaft).
Pry out the oil seal with a special seal removal tool — be careful to not damage the crankshaft or the bore while using the special tool
6. Use a seal puller to remove the crankshaft front oil seal.
7. Clean the seal bore and check it for nicks or gouges. Also, examine the area of the hub that rides in the seal for signs of abnormal wear or scoring.
Installation
Caution: A new bolt must be used when reinstalling the crankshaft pulley.
There is a special tool for installing the front oil seal into the timing chain cover — if the tool is not available, a large socket (the same diameter as the seal) can be used to drive the seal into place
8. Coat the lip of the new seal with clean engine oil and drive it into the bore with a seal driver or a large socket slightly smaller in diameter than the seal. The open side of the seal faces into the engine.
Inspect the crankshaft pulley for signs of damage or excessive wear
1 Oil seal surface
2 Woodruff keyway
9. Lubricate the oil seal contact surface of the crankshaft pulley hub with multi-purpose grease or clean engine oil. Apply a dab of RTV sealant to the front end and center of the keyway in the crankshaft pulley before installation.
10. Install the crankshaft pulley with a special installation tool, available at most auto parts stores. Do not use a hammer to install the pulley. Install the new crankshaft pulley bolt and tighten it to the torque listed in this Chapter’s Specifications.
11. The remainder of installation is the reverse of removal.