1638136 Injection Timing Device | Genuine Volvo Penta Part

🔧 Product Description

This is a genuine Volvo Penta injection timing device for the fuel system of the TWD1030ME marine diesel engine. It controls the point in the engine cycle at which fuel is delivered to the injectors, keeping injection timing correct across the engine's speed and load range. It supersedes the earlier injection timing device 1638094, which was replaced by this unit together with gear 479985 (the gear machined with a hole for a guide pin).

🚤 Compatibility

Typically suits:

• Volvo Penta TWD1030ME

• Engine Family: TWD
• Serial Range: SNXXXXXXXXXX/259068-

⚙️ Key Features

• Genuine Volvo Penta OEM part number 1638136
• System group: Fuel System
• Net weight: 8.036 kg
• Supersedes previous part number 1638094
• Fits TWD1030ME marine diesel engines
• Replacement of the earlier unit also calls for gear 479985, which has the hole for a guide pin
• Engine type: Volvo Penta TWD10 diesel

🔌 Function

The injection timing device advances or retards the moment of fuel injection relative to crankshaft position so that combustion occurs at the optimum point for the current engine speed and load. Correct timing is essential for clean starting, rated power output and control of exhaust smoke.

⚠️ Common Signs of Failure

• Hard starting or extended cranking, particularly when cold
• Black or excessive exhaust smoke and poor combustion
• Loss of power, rough running or erratic engine speed under load
• Knocking or uneven combustion noise caused by mistimed injection
• Increased fuel consumption with no other identifiable cause

🛠️ Service Notes

• Supersedes 1638094 — replacing the earlier device also calls for gear 479985, which has the hole machined for the guide pin, so check the gear is the current type at the same time
• Injection timing is calibration work — have the setting checked and verified on the correct test equipment after fitting
• Confirm the engine designation and serial before ordering; this device is listed for TWD1030ME specifically

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 1638136 → Supersedes 1638094

OEM / Related Numbers

• 1638094 earlier number superseded by this part
• 1638137 - related timing-device component/reference
• 477554 - bearing housing
• 477551 - bushing
• 477552 - related bushing references
• 1638218 - related bushing references
• 1546221 - sealing ring
• 477409 - thrust washer
• 479985 - timing gear
• 479787 - oil-pressure pipe
• 865765 - oil-pressure pipe

📦 Condition

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