Introduction
This instruction manual provides essential information for the correct and safe use of the CASTEX C01/0291 Engine Timing Tool. This specialized kit is designed for the precise timing adjustment and camshaft locking of 1.5 BlueHDi DV5 engines manufactured by the PSA Group between 2017 and February 2023. The tool facilitates accurate camshaft positioning without the need for complex electronic diagnostic equipment.
The C01/0291 tool is compatible with various vehicles from brands including Citroën, DS Automobiles, Fiat, Opel, Peugeot, and Toyota (ProAce, ProAce City) that utilize the first-generation DV5 engine (up to February 2023). This includes common applications such as Citroën C3, C4, Berlingo; Peugeot 208, 308, 3008, 5008; Opel Corsa, Astra, Mokka, Combo; DS 3/4/7; Fiat Scudo/Ulysse; and Toyota Proace, covering engine power outputs of 75, 100, 110, 120, and 130 horsepower.
Safety Information
- Always wear appropriate personal protective equipment (PPE), including safety glasses and gloves, when working on engines.
- Ensure the vehicle is securely supported on jack stands or a lift before commencing any work.
- Disconnect the vehicle's battery to prevent accidental starting or electrical hazards.
- Refer to the vehicle manufacturer's service manual for specific engine timing procedures and torque specifications. This tool is intended to assist with these procedures, not replace them.
- Keep the work area clean and well-lit.
- Do not use damaged or modified tools.
- If you are unsure about any step, consult a qualified automotive technician.
Package Contents
The CASTEX C01/0291 Engine Timing Tool kit typically includes the following components, designed for precise camshaft and crankshaft locking:
- Camshaft locking pins/plates (various shapes for specific camshaft profiles)
- Crankshaft locking pin
- Flywheel locking tool (if applicable to the specific kit design)

Image: Complete set of CASTEX C01/0291 engine timing tools. This image displays the various components included in the kit, such as the camshaft locking plates and the crankshaft locking pin, essential for engine timing procedures.
Setup and Installation
The following steps outline the general procedure for using the CASTEX C01/0291 timing tool. Always consult the specific vehicle manufacturer's repair manual for detailed, model-specific instructions.
1. Prepare the Vehicle
- Park the vehicle on a level surface and engage the parking brake.
- Disconnect the negative terminal of the battery.
- Remove any components necessary to access the timing belt/chain area (e.g., engine covers, auxiliary belts, crankshaft pulley).
2. Position the Engine at Top Dead Center (TDC)
- Manually rotate the crankshaft in the normal direction of rotation until the engine is close to TDC on cylinder 1's compression stroke.
- Insert the crankshaft locking pin (refer to the vehicle manual for the exact location, typically near the flywheel or crankshaft). The pin should engage a hole in the crankshaft or flywheel, locking it in position.

Image: Two specific locking pins/plates. These components are used to precisely lock the camshafts or crankshaft in their correct timing positions.
3. Lock the Camshafts
- With the crankshaft locked, the camshafts should now be in their correct timing position.
- Insert the appropriate camshaft locking pins or plates into the designated slots or holes on the camshaft sprockets or cylinder head. These tools prevent the camshafts from rotating during timing belt/chain removal and installation.
- Ensure all locking tools are fully seated and secure. Do not force them into place.

Image: Another view of a locking plate and pin. This illustrates additional components of the timing kit, used for securing engine components during maintenance.
Operating Instructions
Once the engine components are securely locked using the CASTEX C01/0291 timing tool, you can proceed with the timing belt or chain replacement procedure as per the vehicle manufacturer's guidelines. The tools ensure that the crankshaft and camshafts remain in their synchronized positions, preventing engine damage during the process.
- Carefully remove the old timing belt/chain and associated components (e.g., tensioners, idlers).
- Install the new timing belt/chain, ensuring it is correctly routed and tensioned according to the manufacturer's specifications.
- Once the new timing belt/chain is installed and tensioned, remove all CASTEX timing tools.
- Manually rotate the crankshaft two full revolutions to ensure smooth operation and that no components interfere. Re-check the timing marks if possible, or re-insert the locking tools to verify alignment.
- Reassemble all removed components in reverse order.
- Reconnect the battery and perform any necessary engine calibration or diagnostic checks.
Maintenance
To ensure the longevity and reliability of your CASTEX C01/0291 Engine Timing Tool, follow these maintenance guidelines:
- Cleaning: After each use, clean the tools thoroughly to remove any oil, grease, or debris. Use a clean cloth and a mild degreaser if necessary.
- Inspection: Regularly inspect the tools for any signs of wear, damage, or deformation. Do not use tools that are bent, cracked, or otherwise compromised.
- Storage: Store the tools in their original case or a suitable toolbox in a dry environment to prevent rust and corrosion.
- Lubrication: A light coat of rust-preventative oil can be applied to metal surfaces if storing for extended periods in humid conditions.
Troubleshooting
If you encounter issues while using the CASTEX C01/0291 Engine Timing Tool, consider the following:
- Tools not fitting: Ensure you have the correct timing tool kit for your specific engine model and year. Verify that the engine is at the correct position (e.g., TDC) before attempting to insert locking pins. Do not force tools into place.
- Engine not starting after timing procedure: Double-check all timing marks and ensure the locking tools were used correctly. Verify all electrical connections and fuel supply. Consult the vehicle's service manual for diagnostic steps.
- Tool damage: If a tool becomes damaged, discontinue use immediately and replace it. Using damaged tools can lead to inaccurate timing and potential engine damage.
Specifications
| Brand | CASTEX |
| Model Number | C01/0291 |
| Manufacturer Reference | C01/0291 |
| Engine Compatibility | 1.5 BlueHDi (DV5) - PSA Group (2017 - February 2023, 1st Generation) |
| Vehicle Compatibility | Citroën, DS Automobiles, Fiat, Opel, Peugeot, Toyota (ProAce, ProAce City) with compatible DV5 engines |
| Purpose | Camshaft and crankshaft locking for engine timing procedures |
Warranty and Support
CASTEX products are manufactured to high-quality standards. For specific warranty information, please refer to the documentation provided with your purchase or contact CASTEX customer support directly. In case of questions, technical assistance, or concerns regarding the use of this tool, please reach out to the manufacturer or your authorized dealer.