Description
Technical Overview & Product Details
Because the cylinder block side cover provides access to the engine’s internal oil-lubricated components (such as the camshaft and tappets), the 146673-01411 gasket must manage the dynamic conditions of the crankcase. This includes resisting oil saturation, managing internal temperature fluctuations, and maintaining a seal under the varying crankcase pressures generated during engine operation.
- Compatible Engine Type: Yanmar 6N18 (A)L-V series marine propulsion and auxiliary engines.
- Part Number / Designation: 146673-01411.
- Component Type: Cylinder Block Side Cover Gasket.
- Material: High-grade, oil-resistant fiber/elastomer composite (selected for durability and “crush” recovery).
- Application: Interfaces between the engine cylinder block and the side access cover.
Key Features & Performance
- Oil and Solvent Resistance: Formulated to remain impervious to degradation from synthetic and mineral-based lubricating oils, ensuring the seal does not soften or shrink over time.
- Excellent Recovery: The material possesses high “compression recovery,” meaning it remains elastic even after prolonged clamping, ensuring a tight seal despite the heat-induced expansion and contraction of the engine block.
- Precision Die-Cutting: Manufactured to exact bolt-hole and perimeter tolerances, ensuring that it lines up perfectly for a stress-free installation that won’t “bunch” or fold inside the cover.
- Thermal Stability: Designed to withstand the heat radiating from the engine block without losing its sealing pressure or becoming brittle.
Why Source from Heybeli Marine?
Minor leaks at the side cover can lead to significant oil consumption and unsightly mess, and a failed seal can even lead to oil spray hazards. Heybeli Marine protects your engine with:
- Strict OEM Interchangeability: Our 146673-01411 gaskets are manufactured to meet Yanmar’s original material and thickness specifications, ensuring the correct “crush” factor upon tightening.
- Global Strategic Logistics: We maintain a dedicated, ready-to-ship inventory of these critical sealing components, ensuring they are available for your next inspection or overhaul.
- Quality Assurance: Every batch undergoes dimensional and thickness verification to ensure consistent quality and a leak-free interface.
- Total Maintenance Solution: We supply these gaskets in conjunction with our side covers and mounting hardware, providing a professional-grade repair kit for your 6N18.
Technical Maintenance Note:
Proper installation is key to seal longevity.
- Surface Prep: Both the engine block mating surface and the side cover must be perfectly clean. Use a plastic or brass scraper to remove all traces of the old gasket—never use steel scrapers, as they can gouge the metal, creating a permanent leak path.
- Dry vs. Wet: Follow the Yanmar service manual regarding the use of gasket dressing; if a sealant is required, use a thin, even layer.
- Bolting: Tighten the side cover bolts in a consistent, cross-pattern sequence to ensure even compression. Avoid over-tightening, as this can crush the gasket material unevenly or warp the cover plate.
- Replacement: Never reuse this gasket. Once it has been installed and heat-cycled, it has reached its useful life and will not provide a reliable second seal.