Section 03-01A: Engine, 4.9L SFI
1996 F-150, F-250, F-350 (4x2), F-150, F-250 (4x4) Workshop Manual
IN-VEHICLE SERVICE

Timing Gears

 CAUTION: To prevent possible damage to the camshaft lobes, do not rotate the camshaft (6250) or crankshaft (6303) in the engine (6007) without the timing gears installed.

 

Camshaft Gear

SPECIAL SERVICE TOOL(S) REQUIRED
DescriptionTool Number
Camshaft Gear PullerT82T-6256-A
Camshaft Gear Replacing AdapterT65L-6306-A

Removal

  1. Drain the cooling system and crankcase.

  1. Remove the engine front cover (6019). Refer to Engine Front Cover in the In-Vehicle Service portion of this section.

  1. Check the camshaft end play, the timing gear backlash and the timing gear runout. Refer to Section 03-00.

  1. Crank the engine until the timing marks are aligned as shown.

  1. Install Camshaft Gear Puller T82T-6256-A as shown and remove the camshaft gear.

Installation

If the camshaft end play, timing gear backlash and/or timing gear runout were excessive, make the necessary corrections before installing the camshaft gear.

  1. Make sure the camshaft sprocket spacer (6265) and camshaft thrust plate (6269) are properly installed. Align the gear keyway with the key and install the camshaft sprocket on the camshaft using Camshaft Gear Replacing Adapter T65L-6306-A. Make sure the timing marks line up on the camshaft and crankshaft gears.

  1. Install the engine front cover and related parts. Refer to Engine Front Cover in the In-Vehicle Service portion of this section.

  1. Fill crankcase with oil specified in Section 00-03. Fill cooling system. Refer to Section 03-03. Start the engine and adjust the ignition timing. Refer to Section 03-07A. Operate the engine at fast idle and check all hose connections and gaskets for leaks.

 

Crankshaft Gear

 
SPECIAL SERVICE TOOL(S) REQUIRED
DescriptionTool Number
Crankshaft Damper ReplacerT52L-6306-AEE

Removal

  1. Drain the cooling system and crankcase. Remove the radiator (8005). Refer to Section 03-03.

  1. Remove the engine front cover. Refer to Engine Front Cover in the In-Vehicle Service portion of this section.

  1. Crank the engine until the timing marks are aligned.

  1. Using a suitable crankshaft pulley remover tool, remove the crankshaft gear. Remove the key from the crankshaft.

Installation

  1. Install the key in the crankshaft keyway. Install the crankshaft gear using the Crankshaft Damper Replacer T52L-6306-AEE. Make sure timing marks are aligned properly on the camshaft and crankshaft gears.

  1. Replace the crankshaft front seal (6700). Install the engine front cover. Refer to Engine Front Cover in the In-Vehicle Service portion of this section.

  1. Install the radiator. Refer to Section 03-03.

  1. Fill crankcase with oil specified in Section 00-03. Fill cooling system. Refer to Section 03-03. Start the engine and check all gaskets and hose connections for leaks. Adjust the ignition timing to specifications on the Vehicle Emission Control Information decal. Refer to Section 03-07A.