2011-2016 Ford F-150 3.5L Ecoboost Timing Set Replacement Part 3: Timing the Engine

Introduction

This tutorial provides a step-by-step guide for timing the engine during a timing set replacement on a 2011-2016 Ford F-150 with a 3.5L Ecoboost engine. Proper timing is crucial for engine performance and longevity. Follow these steps carefully to ensure accurate timing and avoid potential issues.

Step 1: Gather Required Tools and Parts

Before starting, make sure you have all necessary tools and parts. Here’s what you will need:

Tools

• Crankshaft Pulley Remover
• Camshaft Holding Tools
• Secondary Tensioner Holding Tool
• Cat Claw
• Vacuum Bleeder
• Oil Catch Can Kit

Parts

• Intake Phaser (2 required)
• Exhaust Phaser (2 required)
• Primary Timing Chain
• Timing Chain Tensioner
• Intake and Valve Cover Gaskets
• High-Pressure Fuel Pump O-Ring
• Motorcraft Front Cover Sealant

Refer to the provided links for purchasing options.

Step 2: Prepare the Engine

• Disconnect the Battery: Always disconnect the negative terminal to ensure safety.
• Drain Fluids: Drain engine oil and coolant to prevent spills during replacement.
• Remove Components: Take off any components obstructing access to the timing set, such as the valve covers and intake manifold.

Step 3: Align the Timing Marks

• Position the Crankshaft: Rotate the crankshaft until the timing mark on the crankshaft gear aligns with the mark on the engine block.
• Align Camshaft Gears: Ensure the camshaft gears are also aligned with their respective timing marks.

Tip: Use a flashlight to better see the timing marks, especially in tight spaces.

Step 4: Install the Timing Chain

• Position the Timing Chain: Place the timing chain over the crankshaft and camshaft gears, ensuring the timing marks remain aligned.
• Install the Tensioner: Attach the timing chain tensioner, making sure it is seated properly.

Step 5: Set the Phasers

• Attach Intake and Exhaust Phasers: Install the intake and exhaust phasers on their respective camshafts.
• Secure with Bolts: Use the appropriate torque specs for the phaser bolts. Refer to the torque sequence guide linked in the description.

Common Pitfall: Ensure that the phasers are not rotated while installing the timing chain; this can throw off the timing.

Step 6: Double-Check Alignment

• Verify Timing Alignment: After installation, double-check that all timing marks are still aligned correctly.
• Rotate the Engine: Manually rotate the crankshaft two full revolutions and recheck the alignment of the timing marks.

Step 7: Reassemble the Engine

• Replace Components: Reinstall any components that were removed, such as the valve covers and intake manifold.
• Reconnect Fluids: Refill engine oil and coolant as needed.
• Reconnect the Battery: Reattach the negative terminal of the battery.

Conclusion

Following this guide will help you accurately time the engine during a timing set replacement for a 2011-2016 Ford F-150 3.5L Ecoboost. Always ensure all tools and parts are on hand before starting, and take your time with each step to avoid mistakes. If you encounter difficulties, consider consulting a professional mechanic for assistance.