1699812 Compression Spring | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta compression spring for the fuel system, providing return or preload force within the injection assembly. It is listed for TD164KAE and TAMD163/165 series marine and industrial diesel engines.

🚤 Compatibility

Typically suits:

• Volvo Penta TD164KAE
• Volvo Penta TAMD163P-A
• Volvo Penta TAMD165A
• Volvo Penta TAMD165C
• Volvo Penta TAMD165P

• Engine Family: TD, TAMD

⚙️ Key Features

• Calibrated delivery-valve return spring
• Six springs used in the six-cylinder injection pump
• Works with delivery valve 85103885 and peg 1699811
• Maintains rapid and repeatable delivery-valve closure
• Spring load must remain matched across all pump elements
• Engine type: Volvo Penta 16-litre six-cylinder diesel

🔌 Function

The compression spring is compressed in service and pushes back with a predictable force, returning the component it serves to its rest position and maintaining preload. That consistent force keeps injection travel repeatable.

⚠️ Common Signs of Failure

• Reduced free length or measurably weakened spring force
• Fracture or cracking of a coil
• Component not returning fully to its rest position
• Corrosion or pitting reducing wire section
• Erratic fuel delivery traced to lost preload

🛠️ Service Notes

• Compare the new spring with the one removed for free length and coil condition; a spring that has taken a set or lost length is past its useful life
• Look over the old spring for corrosion pitting, bright rub marks and cracked or broken coil ends, and check whatever it bears against for the same wear
• Never stretch, shorten, grind or heat a spring to alter how it behaves — fit the correct part instead
• Seat the spring squarely in its recess or over its guide with the ends fully home, so it cannot cock over or bind in service
• Where springs work as a group, renew them together so the load stays even across the set

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 85103885 - delivery valve
• 1699811 - delivery-valve peg
• 1699810 - delivery-valve retainer
• 1699536 - pump element
• 240422 - sealing ring

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging