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techtalk:evo:oil03 [2024/05/07 00:43] – hippysmacktechtalk:evo:oil03 [2025/10/10 00:27] (current) – hippysmack
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 ===== Sub-Documents ===== ===== Sub-Documents =====
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   * **86-90 Sportster Oil Pump**:   * **86-90 Sportster Oil Pump**:
     * [[techtalk:evo:oil03h|86-90 Oil Pump (26204-86) Removal and Disassembly]]     * [[techtalk:evo:oil03h|86-90 Oil Pump (26204-86) Removal and Disassembly]]
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   * **Oil Pump Conversion**:   * **Oil Pump Conversion**:
     * [[techtalk:evo:oil03c|5 Speed Oil Pump on 4 Speed Models (Conversion for 86-90 Evo engines)]]     * [[techtalk:evo:oil03c|5 Speed Oil Pump on 4 Speed Models (Conversion for 86-90 Evo engines)]]
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 Note: Be sure to check the [[techtalk:menu#reference_technical_categories|REFERENCE section]] for additional information related to Oiling, Lubrication and Mods. Note: Be sure to check the [[techtalk:menu#reference_technical_categories|REFERENCE section]] for additional information related to Oiling, Lubrication and Mods.
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 ====== Oil Pump - Complete Unit Part Numbers ====== ====== Oil Pump - Complete Unit Part Numbers ======
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 **1986-1990 Models - XL P/N = 26204-86**\\ **1986-1990 Models - XL P/N = 26204-86**\\
 - pump body catalog p/n 26484-86\\ - pump body catalog p/n 26484-86\\
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 Minimum: 7-12 psi (idle) \\ Minimum: 7-12 psi (idle) \\
 Normal riding conditions: 12-17 psi (2500 rpm) \\ Normal riding conditions: 12-17 psi (2500 rpm) \\
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 1986-1991 models have a high pressure regulator built into the feed path to dump excess pressure to the bottom of the cam chest. \\ 1986-1991 models have a high pressure regulator built into the feed path to dump excess pressure to the bottom of the cam chest. \\
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 So 1992-up models have a constant pressure release in a way. \\ So 1992-up models have a constant pressure release in a way. \\
 [[techtalk:evo:oil01#oil_pressure_regulator_-_92_and_up_models|Click Here]] to read more on in the Sportsterpedia. \\ [[techtalk:evo:oil01#oil_pressure_regulator_-_92_and_up_models|Click Here]] to read more on in the Sportsterpedia. \\
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 ===== Gauge mounted at oil filter pad ===== ===== Gauge mounted at oil filter pad =====
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 ====== Oil Pump Date Code ====== ====== Oil Pump Date Code ======
 ===== 91 and Up Oil Pumps ===== ===== 91 and Up Oil Pumps =====
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 The casting date code is in a circle on the mounting surface near the return fitting. \\ The casting date code is in a circle on the mounting surface near the return fitting. \\
 A 'year of manufacture' number is stamped inside the circle with 12 hash marks around the circle. \\ A 'year of manufacture' number is stamped inside the circle with 12 hash marks around the circle. \\

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