3806714 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 3803714; that is where the pump itself comes from, and the two go on the order together. The line is listed at 13.5 kg. Nothing goes out against the deposit, so read that as the scale weight of the pump coming back for credit - a one-man lift, so it can go back the way it came. 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 3803714
• Refunded when the old injection pump is returned
• 13.5 kg listed, the return weight to plan freight around
• 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
• Idle hunting or surging, with the revolutions never settling
• The engine down on one bank or one cylinder with no injector, compression or valve fault behind it
• The governor sticking, so the engine is slow to answer the throttle or runs past the setting
• The engine running on after the stop control has been pulled

🛠️ 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 3803714
• The pump has to be timed to the engine's documented figure on refitting, and the system bled through before it will start cleanly

📦 Condition

• Refundable core deposit - not a physical part