Piston ring set, JE 86mm. Porsche 356 / 912  ❭  0081186RJE

Hastings 86mm Piston Rings.
Restore effective cylinder sealing, compression, and oil control during an engine rebuild with these OE Match Hastings 86mm Piston Rings, reference 0081186RJE. Designed for compatible 86mm piston and cylinder applications, this piston ring set provides a high-quality replacement solution for engine rebuilding, restoration, and performance applications where dependable sealing is essential.

Fits: Porsche 356 / 912
Ring Size: 1.5 x 1.5 x 3.0
Number of CYL's: 4

This is the replacement ring set for Retro Performance (0081186PJE), (0081186CJE), (0081186AJE), (0081186BJE) and (0081186JEP) Kits.

Hastings piston rings are designed to provide an effective sealing interface between the piston and cylinder wall. The compression rings help contain the pressure generated during combustion, reducing the amount of combustion gas that escapes past the piston into the crankcase. The oil-control rings regulate the lubricating oil film on the cylinder walls, removing excess oil while retaining sufficient lubrication for smooth piston movement. The rings also assist with transferring heat from the pistons into the cylinder walls.  

What This Product Does:

• Creates an effective seal between the pistons and cylinder walls.
• Is designed for compatible 86mm piston applications.
• Helps retain combustion pressure within each cylinder.
• Supports strong and consistent engine compression.
• Reduces combustion gas leakage into the crankcase.
• Helps minimise excessive engine blow-by.
• Controls the lubricating oil film on the cylinder walls.
• Helps prevent excessive engine oil from entering the combustion chambers.
• Assists with transferring piston heat into the cylinder walls.
• Supports efficient combustion and dependable engine performance.
• Replaces worn, damaged, broken, or sticking piston rings.

Symptoms Of Wear Or Failure:

• Low or uneven cylinder compression.
• Excessive engine oil consumption.
• Blue or blue-grey smoke from the exhaust.
• Excessive crankcase pressure or blow-by.
• Reduced engine power or poor acceleration.
• Increased exhaust emissions.
• Oil-fouled spark plugs.
• Carbon deposits within the combustion chambers.
• Poor compression or leak-down test results.
• Excessive oil entering the combustion chambers.
• Broken, worn, seized, or damaged rings found during engine disassembly.
• Excessive cylinder bore or piston ring-groove wear.

Why Replacement Matters:

• Piston rings are essential for maintaining the cylinder seal required for efficient compression and combustion. When compression rings become worn, damaged, stuck, or lose their tension, combustion gases can escape past the pistons into the crankcase. This can reduce cylinder compression, decrease engine performance, and increase crankcase blow-by.
• Worn oil-control rings can allow excessive lubricating oil to enter the combustion chambers. This may result in increased oil consumption, blue exhaust smoke, spark plug fouling, carbon deposits, and increased emissions. Continued operation with poor ring sealing can also accelerate wear of the pistons, cylinder walls, and other internal engine components.
• Correct sizing and compatibility are particularly important when installing replacement rings. The 86mm specification must match the intended pistons and cylinder bores, while ring thickness and groove dimensions must also be correct for the piston design. Incorrect ring dimensions, excessive or insufficient end gaps, or an unsuitable cylinder surface finish can prevent proper sealing and potentially cause premature wear or engine damage.
• Replacing worn or damaged components with these OE Match Hastings 86mm Piston Rings 0081186RJE helps restore cylinder sealing, compression, oil control, and dependable engine performance when installed as part of a correctly measured and prepared engine rebuild.

Related reference numbers
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0081186RJE

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