Shandong Shengyue Technology Development Co.,Ltd is one of the most professional howo trucks wd615/d12 engine nozzle vg2600010659 manufacturers and suppliers in China. Please feel free to buy high quality genuine auto parts at competitive price from our factory.
HOWO TRUCKS WD615/D12 Engine nozzle
FUNCTION
1. Precision Piston Cooling: During engine combustion, the temperature at the piston crown reaches extreme levels; a nozzle precisely injects low-temperature engine oil from below into the cooling galleries within the piston's internal cavity. This process dissipates a significant amount of heat, preventing the piston from suffering crown melting, deformation, or cylinder liner scuffing caused by overheating.
2. Auxiliary Piston Pin Lubrication: The high-pressure oil mist effectively splashes onto and lubricates the friction surfaces between the piston pin and the small-end bushing of the connecting rod, thereby reducing physical wear under high-load conditions.
DETAILS
| DESCRIPTION | Engine nozzle | PART NUMBER | VG2600010659 |
| WEIGHT | 0.5 kg | VOLUME | |
| TRUCK MOLDE | SINOTRUK | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | ENGINE |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
Key Recommendations for Maintenance and Replacement
1. Major Overhaul: Thorough Cleaning or Replacement Required. During an engine mid-life service or major overhaul, the cooling nozzles must be removed for cleaning and inspection. If a nozzle is clogged by metal debris or sludge particles, the piston will lose its cooling supply; consequently, shortly after restarting the engine-often within just a few minutes-this can easily trigger severe cylinder scoring or piston meltdown.
2. Calibrating the Spray Angle. Each nozzle is manufactured with a strictly defined, targeted spray angle. During installation, specialized alignment pins must be used, or the fastening procedure must strictly adhere to the engineering drawings; under no circumstances should the nozzle tube be struck or twisted out of alignment with tools during assembly. If the angle deviates, the oil will fail to spray into the piston's cooling gallery; this not only renders the cooling function ineffective but also results in the oil simply flowing back into the oil pan without serving its intended purpose.
3. Checking the Check Valve Spring Tension. If the pressure-limiting spring within the nozzle fails-causing the nozzle to spray oil at a high flow rate even while the engine is idling-it will result in critically low oil pressure within the engine's main oil gallery. This triggers warning alarms and accelerates the wear of the main bearings.
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