Product Description
Traditional removal methods often rely on manual tapping or welding, which are not only time-consuming but carry a significant risk of damaging the expensive cylinder head casting. Our tool provides a controlled, perpendicular extraction force that eliminates these risks, ensuring a clean removal every time.
Core Product Highlights
- Universal Fleet Compatibility: Custom-sized pulling heads for major 4-stroke series, including Yanmar, Daihatsu, MAN, and Wartsila-Sulzer.
- Hydraulic Efficiency: Uses a high-pressure manual hydraulic pump to generate smooth, consistent lifting force, significantly reducing man-hours.
- Cylinder Head Protection: Engineered to seat securely on the head surface, distributing pressure evenly to prevent cracking or scratching.
Technical Application & Operation
1. Supported Engine Series
We supply customized puller sets tailored to the specific seat geometries of:
- YANMAR Series: EY28, EY18, N21, N18, M200, etc.
- DAIHATSU Series: DK-32, DK-28, DK-20, DC-17, DL-20, etc.
- MAN Series: L32/40, L28/32, L23/30, L16/24, etc.
- WARTSILA-SULZER Series: L20, R22, S20, AS25, etc.
2. Operational Procedure (Step-by-Step)
- Selection: Based on the specific engine model, select the correct pulling head and claw pin length.
- Positioning: Measure the valve seat ID and place the puller assembly over the valve seat bore.
- Engagement: Position the puller claws at the lower edge of the seat or the junction between the seat and the cylinder head.
- Tensioning: Turn the screw rod clockwise to expand the jaws until they are firmly engaged with the valve seat.
- Extraction: Connect the high-pressure oil hose to the manual pump. Operate the pump handle to apply hydraulic lift until the valve seat is smoothly extracted from the cylinder head.
Why Choose Sourcing Marine Tools?
- Time Savings: Reduces valve seat removal time by up to 70% compared to manual methods.
- Damage Prevention: Eliminates the need for “hitting” or “prying,” protecting the integrity of the cylinder head landing surface.
- Complete Kit: Each set comes in a durable transport case with all necessary hydraulic components and adapters for your specific engine fleet.