3806755 Injection Pump Core | Genuine Volvo Penta Part

🔧 Product Description

This is the core charge on an injection pump exchange, held in the Fuel System group. The charge is raised when the exchange pump is bought and credited once the worn pump goes back. It is a bookkeeping line rather than a fittable part, and on its own it supplies nothing. The unit the deposit is raised against is part number 3803755; that is where the pump itself comes from, and the two go on the order together. The lines in this run are not separated by any published engine application, so match the number to the pump coming off rather than trying to identify it by description.

⚙️ Key Features

• Core deposit line, not an injection pump you can fit
• Belongs with the exchange unit, part number 3803755
• Refunded when the old injection pump is returned
• No engine application published against the line, so order by part number
• Fuel System group

🔌 Function

It exists to carry the core charge on the exchange rather than to do anything mechanical; the injection pump itself pressurises the fuel and times its delivery to each injector, which is what governs the engine's power and its idle.

⚠️ Common Signs of Failure

• This is a deposit line and has nothing to fail in itself; the signs below are what normally condemns the injection pump being exchanged
• Loss of power, with the engine unable to pull up to its rated revolutions
• Stiff or binding drive as the engine is turned over, with the pump loading the timing gear
• Far more fuel going back to the tank on the return than the engine should be spilling
• Rough or uneven running traced back past the injector to the pump element serving that cylinder

🛠️ Service Notes

• The charge is refunded when the worn injection pump is returned, so keep the old pump and send it back rather than scrapping it
• Ordering this number on its own supplies no part - it goes on the order beside the exchange unit, part number 3803755
• Check the drive gear, coupling and keyway as the old pump is drawn off, and renew anything that shows wear before the exchange unit goes on

📦 Condition

• Refundable core deposit - not a physical part