1547979 Shim for Valve Adjustment — Volvo FM12
1300 05 013
Summary
This 2.60 mm valve adjusting shim is designed for Volvo FM12 D12C engines, ensuring precise valve clearance and optimal engine performance in heavy commercial vehicles. Equivalent to OE Volvo 1547979.
| EAN Code | 8699031053325 |
|---|
Ready to Order
Compatible OEM Codes
-
VOLVO
- 1547979
Description
What is a valve adjusting shim?
A valve adjusting shim is a precision-ground steel spacer that brings valve clearance in heavy commercial vehicle diesel engines to the tolerance set by the manufacturer. This component sits within the valve train to ensure the valve seats fully on every cycle, preventing compression loss and protecting the valve seating face.Compatibility with Volvo FM12
This specific shim is designed for Volvo FM12 trucks equipped with the D12C engine. It provides the exact thickness required to maintain correct lash between the rocker arm and the valve stem. It is also compatible with other heavy commercial vehicle engines where these specific dimensions are required.Installation and maintenance
For proper installation, technicians should ensure the shim seat is clean and lightly lubricated before assembly to prevent scoring marks. It is essential to measure each valve individually, as each cylinder may require a different grade to maintain correct clearance. Always verify clearances after assembly before fitting the cover.Importance of precision thickness
Maintaining correct shim thickness is critical for preventing rapid wear of contact surfaces and ensuring engine efficiency.OE cross-reference
1300 05 013 (Valve Adjusting Shim Engine Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 1547979.Other OEMs
VOLVO
- 1547979
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 in the valve train to bring the valve clearance to the manufacturer's specified tolerance, ensuring complete valve seating.
How do I know if this shim fits my engine?
Compatibility can be confirmed by checking the thickness requirements for your specific engine code; this one is specified for Volvo FM12 D12C engines.
What are the symptoms of incorrect shim thickness?
Incorrect thickness can lead to compression loss, increased engine noise, or rapid wear of the valve seating faces and rocker arms.
Can I sand a shim to adjust it?
No, sanding a shim removes the hardened layer and shortens its service life; always use a ready-made shim of the correct grade.
What are the OE reference numbers of this part?
1300 05 013 directly replaces Volvo OE number 1547979.