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techtalk:evo:oil03 [2019/08/05 12:47]
ixl2relax [Known Drive Gear Failure]
techtalk:evo:oil03 [2020/06/06 02:27] (current)
hippysmack [Oil Pump Drive Gear]
Line 209: Line 209:
 ====== Oil Pump Drive Gear ====== ====== Oil Pump Drive Gear ======
 **88 and up**: \\ **88 and up**: \\
 +A material change to cast iron for increased service life was implemented on April 23, 1992. ((HD Tech Tip #TT039 dated July 1992)) \\
 +The new gear has a part number change to 26318-88A. This part will retrofit to all Sportster models, 1988 and later. \\
 +
 Below is a used gear that does show some wear. \\ Below is a used gear that does show some wear. \\
 {{:​techtalk:​evo:​oil:​91-up_oil_pump_drive_gear_1_by_hippysmack.jpg?​direct&​300|}} ((photo by Hippysmack)){{:​techtalk:​evo:​oil:​illustration_of_helical_gear_tooth_formation_by_hippysmack.jpg?​direct&​300|}} ((drawing by Hippysmack)) \\ {{:​techtalk:​evo:​oil:​91-up_oil_pump_drive_gear_1_by_hippysmack.jpg?​direct&​300|}} ((photo by Hippysmack)){{:​techtalk:​evo:​oil:​illustration_of_helical_gear_tooth_formation_by_hippysmack.jpg?​direct&​300|}} ((drawing by Hippysmack)) \\