463551 Adjusting Washer | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta adjusting washer 3.55 mm thick, from the Engine group, listed for 21 applications across AQ and BB series engines. It is, which runs 3.55 mm (463551), 3.60 mm (463552), 3.65 mm (463553), 3.85 mm (463557), 4.00 mm (463560), 4.05 mm (463561), 4.10 mm (463562) and 4.15 mm (463563).

🚤 Compatibility

• Engine Family: AQ, BB

Full model list at the end of this description.

⚙️ Key Features

• 3.55 mm thick
• 21 applications across AQ and BB series engines
• Thinnest of the 3.55 mm to 4.15 mm graded series
• Published weights do not track thickness across the series
• TH=3.55mm (Volvo assembly listing)

🔌 Function

Sets a running clearance by a fixed amount, so the correct washer is the one that brings the measured clearance into specification rather than the one that matches the engine.

⚠️ Common Signs of Failure

• Tapping or clatter from the valve gear when clearance is too great
• Clearance measuring outside specification at service
• Washer scuffed, pitted or worn thin on the contact face
• Uneven wear pattern showing the washer has not been running square

🛠️ Service Notes

• Measure first and order on the measured clearance, since the published weights across this series are useless as a guide, with the 4.00 mm washer the lightest at 0.019 kg and the 3.65 mm the heaviest at 0.034 kg
• Check the cam and follower faces for wear before deciding the washer size

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta AQ131A, AQ131B, AQ131C, AQ131D
• Volvo Penta 230A, 230B, 250A, 250B
• Volvo Penta AQ151A, AQ151B, AQ151C
• Volvo Penta AQ125B, AQ125A
• Volvo Penta AQ145B, AQ145A
• Volvo Penta AQ171A, AQ171C
• Volvo Penta AQ120B
• Volvo Penta AQ140A
• Volvo Penta BB140A
• Volvo Penta BB145A