1547978 Valve Adjusting Shim for Volvo FM12
1300 05 012
Summary
High-strength valve adjusting shim designed for Volvo FM12 engines with D12C specifications. This precision component ensures accurate valve clearance and optimal engine performance in heavy commercial vehicles. Check the compatibility list. Equivalent to OE Volvo 1547978.
| EAN Code | 8699031053318 |
|---|
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Compatible OEM Codes
-
VOLVO
- 1547978
Description
What does a valve adjusting shim do?
This valve adjusting shim functions as a precision spacer within the engine valve train, specifically designed to maintain the exact valve clearance required by the manufacturer. By sitting between the rocker arm or cam follower and the valve, it ensures the valve seats fully during every combustion cycle, preventing compression loss and protecting the valve seating face.Compatibility with Volvo engines
This specific part is compatible with Volvo FM12 trucks equipped with D12C engines. It is engineered to meet the rigorous demands of heavy commercial vehicle operation, providing stable clearance even under continuous impact loading within the cylinder head assembly.Installation and maintenance guidance
For successful installation, technicians should ensure the shim seat is clean and lightly lubricated to prevent scoring marks upon first start-up. It is critical to measure each valve individually rather than assuming uniform clearance across all cylinders. Always verify clearances after assembly and consider renewing the valve cover gasket during service.Importance of correct thickness
Maintaining correct shim thickness is essential for preventing premature wear of the valve train components. Using a shim of the incorrect grade can lead to rapid clearance drift or mechanical damage. Consult your authorized distributor for further assistance.OE cross-reference
1300 05 012 (Valve Adjusting Shim Engine Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 1547978.Other OEMs
VOLVO
- 1547978
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?
It acts as a precision spacer that brings valve clearance in heavy commercial vehicle diesel engines to the specific tolerance set by the manufacturer.
Which engines are this shim compatible with?
This part is designed for Volvo FM12 engines featuring the D12C engine code to ensure precise valve seating.
How should I install a new shim?
Clean and lightly oil the shim seat before assembly to prevent scoring, and always re-measure clearances before fitting the cover.
Why is it important to use the correct thickness?
Using the correct thickness prevents compression loss and ensures that the valve train operates within specified tolerances under heavy loads.
What are the OE reference numbers of this part?
1300 05 012 directly replaces Volvo OE number 1547978.