1677348 Valve Adjusting Shim for Volvo FM12 D12C
1300 05 020
Summary
Precision 2.95 mm valve adjusting shim compatible with Volvo FM12 D12C engines. This heavy-duty grade component ensures accurate valve clearance and optimal engine performance for heavy commercial vehicles. Equivalent to OE Volvo 1677348.
| EAN Code | 8699031053394 |
|---|
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Compatible OEM Codes
-
VOLVO
- 1677348
Description
What does a valve adjusting shim do?
This precision-ground shim is a critical component within the engine valve train, designed to maintain the exact valve clearance required by the manufacturer. By providing a calibrated thickness between the cam follower and the valve, it ensures that the valve seats fully during every cycle, preventing compression loss and protecting the valve seating face.Vehicle and engine compatibility
This specific 2.95 mm shim is designed for Volvo FM12 trucks featuring the D12C engine. It serves as a high-strength replacement to maintain precise engine timing and performance in heavy commercial vehicle applications.Installation and maintenance
For professional technicians, it is essential to clean the shim seat and lightly lubricate the shim before assembly to prevent scoring on first start-up. Always verify the thickness using a micrometer and ensure the shim is seated correctly to prevent side loading on the valve stem.Maintenance importance
Regularly checking valve clearances according to manufacturer intervals helps prevent rapid wear of contact surfaces and maintains engine efficiency.OE cross-reference
1300 05 020 (Valve Adjusting Shim Engine Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 1677348.Other OEMs
VOLVO
- 1677348
Related Products
Grouped Products
Used In
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| RENAULT TRUCKS | Magnum | DXi12 | |
| VOLVO | |||
| VOLVO | FH12 | D12C | |
| VOLVO | FH12 | D12D | |
| VOLVO | FH16 | D16C | |
| VOLVO | FM10 | D10A | |
| VOLVO | FM12 | D12C | |
| VOLVO | FM12 | D12D | |
| VOLVO | NH12 | D12C | |
| VOLVO | VHD | D12 | |
| VOLVO | VNL | D12 |
FAQ
What is the function of a valve adjusting shim?
A valve adjusting shim acts as a precision spacer that brings the valve clearance to the specific tolerance required by the engine manufacturer, ensuring proper combustion and timing.
How do I ensure this shim fits my Volvo engine?
Compatibility should be confirmed by cross-referencing the OE part number of the removed shim or checking the specific engine code, as dimensions can vary even within the same model series.
Why is it important to measure shims individually?
Each cylinder's valves may require different grades; measuring each individually ensures that no single cylinder suffers from excessive play or binding due to incorrect clearance.
What are the symptoms of incorrect shim thickness?
Incorrect thickness can lead to compression loss, excessive engine noise, or rapid wear of the cam follower and valve seating faces due to improper clearance.
What are the OE reference numbers of this part?
1300 05 020 directly replaces Volvo OE number 1677348.