Description
Overview
The RAIL Output Pipe for Citroën Peugeot 1570H5 is the high-pressure outlet pipe from the injection pump for PSA 1.6 HDi diesel engines. It delivers pressurised diesel from the pump to the common rail and is often identified by part number 1570H5 — a common search term for workshops and DIY mechanics.
Function And Application
This precision-formed high-pressure fuel line connects the injection pump outlet to the fuel rail. Its role is to convey fuel at very high pressure without leaks, maintaining correct fuel pressure and injector performance on 1.6 HDi engines used across Citroën and Peugeot models.
Symptoms And Causes Of Failure
- Visible fuel leaks at fittings or along the pipe
- Hard starting, loss of power or rough idle due to pressure loss
- Diesel smell, black smoke or injector warning lights
- Causes include corrosion, vibration fatigue, impact damage or degraded sealing washers
Replacement And Installation
Replacement should be performed by trained technicians or experienced DIYers. General steps:
- Depressurise the fuel system and disconnect the battery.
- Clean the area to prevent contamination entering the fuel system.
- Carefully loosen the high-pressure fittings at the pump and rail. Replace any sealing washers or crush rings with new ones.
- Install the new pipe making sure fittings seat correctly; tighten to manufacturer torque settings (refer to the vehicle service manual).
- Start the engine and check for leaks. Recheck fasteners after a short test drive.
Observe safety precautions: diesel under high pressure can cause injury; wear eye protection and avoid ignition sources.
Technical Information
- Manufacturer: RAIL
- Model: PSA 1.6 HDi
- Product Codes: 1570H5
- Additional Numbers: Not Specified
