Introduction

This article is for installing a camshaft synchronizer into the back of the engine.

Disclaimer: The Ranger Station.com, The Ranger Station.com Staff, nor the original poster are responsible for you doing this modification to your vehicle. By doing this modification and following this how-to you, the installer, take full responsibility if anything is damaged or messed up. If you have questions, feel free to PM the original poster or ask in the appropriate section of The Ranger Station.com forums.

Difficulty: 7-9 out of 10 (depending on circumstances)

Time to install: With engine out: 10-20 minutes / Engine in vehicle: unknown (estimated 45 min)

Tools needed:

  • Razor blade
  • Ruler
  • Set of metric wrenches
  • Set of sockets (3/8)
  • Ratchet
  • 1/2″ breaker bar
  • Unknown size socket (for turning over engine)
  • 3/8 Inch extensions if in the vehicle

Parts needed:

  • Camshaft synchronizer
  • masking tape
  • valve cover gasket (passenger side)

Procedure

Step 1. Remove belts if still on engine.

Step 2. If not already un-installed, loosen and remove hold down clamp before removing old plug or broken/malfunctioning cam-synchro.

Remove camshaft synchronizer

Synchronizer removed

Step 3. Remove valve cover

Step 4. Using 1/2″ breaker bar, turn engine clockwise using the big crankshaft pulley bolt. bring engine cylinder #1 to TDC compression stroke (when both valves are closed). The #1 cylinder is the one closest to the front passenger side.

Rocker arms

Step 5. Using the ruler, cut a piece of masking tape 34mm long, exactly.

Step 6. Stick tape on the left side of the line on the crankshaft pulley and turn engine clockwise until the timing needle points at the end of the tape:

Crankshaft pulley

 

Timing mark

Marking the timing

 

Step 7. Insert cam synchronizer into its socket in the back of the engine, at a 90-degree angle to the back of the block, with the c shaped piece pointed open end towards the driver side and on the far-left mark.

Insert cam synchronizer

Since the gear is helical, it will rotate as it goes into the engine and hopefully slips right into the oil pump. drive gear. If it does not, try wiggling it around it should drop in. replace hold down clamp, and make sure c shape lines up with the far right line on the sight glass now, perfectly, then tighten hold down. plug in and you’re done.

More Information From Forum member Slingblade:

The sensor itself is held on by two philips head screws.

You don’t need to remove the whole drive gear assembly just to change the sensor. So, you don’t need to worry about the timing.

I think it would be easiest to remove the upper intake, but might be accessible with it in, but I doubt. My engines out right now anyways. Here are a couple of pics of what it looks like.

Camshaft synchronizer in position

Camshaft synchronizer connector

Just the cam sensor

Camshaft synchronizer removed

Oil drive and synchronizer

made in Germany

New Sensor

New sensor - top  New sensor bottom

Contributor

This procedure was performed by TRS forum member Jaymegriffiths and contributed to the author to be published at The Ranger Station to help other Ford Ranger owners. See the original thread HERE

Link:

Ford Ranger 4.0L Forum

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About The Author

Founder / Administrator at  | Staff Profile

Jim Oaks is the founder of The Ranger Station, one of the longest-running Ford Ranger enthusiast communities on the web. He has spent over three decades owning, modifying, repairing, and driving Ford Rangers on the street, trail, and cross-country routes.

Since launching TheRangerStation.com in 1999, Jim has documented thousands of real-world Ranger builds, technical repairs, drivetrain swaps, suspension modifications, and off-road tests contributed by owners worldwide. His work has been referenced by enthusiasts, mechanics, and off-road builders looking for practical, experience-based information rather than theoretical advice.

Jim’s hands-on experience includes long-distance overland travel, trail use, drivetrain and axle upgrades, suspension tuning, and platform comparisons across multiple Ranger generations. The content published on The Ranger Station is grounded in first-hand experience and community-verified data, not marketing claims or generic specifications.