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| techtalk:evo:oil03m [2019/03/06 18:35] – hippysmack | techtalk:evo:oil03m [2019/03/06 23:04] (current) – [Body] hippysmack |
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| [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] |
| ====== EVO: Oiling & Lubrication - Sub-03M ====== | ====== EVO: Oiling & Lubrication - Sub-03M ====== |
| See also [[techtalk:evo:oil03l#oil_pump_26204-91_parts_approximate_dims|91-97 Oil Pump (26204-91) Parts (approximate) Dims]] \\ | ===== 97 Oil Pump (26204-91) Individual Parts and Pics ===== |
| | See also [[techtalk:evo:oil03n#oil_pump_26204-91_parts_approximate_dims|97 Oil Pump (26204-91) Parts (approximate) Dims]] \\ |
| More on the [[techtalk:evo:oil01|Evo Sportster Oiling System]] in the Sportsterpedia. \\ | More on the [[techtalk:evo:oil01|Evo Sportster Oiling System]] in the Sportsterpedia. \\ |
| ===== 97 Oil Pump (26204-91) Individual Parts and Pics ===== | |
| ===== Cover Casting Number (26487-90A) ===== | |
| |
| The oil feed direction into the engine changed in 91. \\ | ====== Pump Assembly with Bottom Cover Casting Number (26487-90A) ====== |
| The initial engine feed on 86-90 models is directed straight out of the oil pump into the bottom of the cam cover. \\ | |
| On 91 and up engines, oil is routed from the oil pump into the oil filter pad and then into a horizontal feed galley in the top of the gearcase. \\ | |
| This removed the need for the oil to return to the pump from the filter as in 86-90 engines. \\ | |
| Therefore, the filter return port on the -91 pump was removed. It has only one feed fitting in the front routed to the filter pad. | |
| |
| There is no gearshaft bushing used in the body or the cover. \\ | Oil is routed from the oil pump into the oil filter pad and then into a horizontal feed galley in the top of the gearcase. \\ |
| There is a recess inside the body for a gearshaft thrust washer. \\ | The oil pump has one feed fitting in the front routed to the filter pad. |
| |
| {{:techtalk:evo:oil:91-97_oil_pump_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) {{:techtalk:evo:oil:91-97_oil_pump_2_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) | | 91-97 oil path from pump ((photo by Hippysmack)) | Parts list ((photo by Hippysmack)) | |
| | |{{:techtalk:evo:oil:91-97_oil_pump_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-97_oil_pump_2_by_hippysmack.jpg?direct&300|}}| |
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| | ===== Cover Casting Number (26487-90A) ===== |
| |
| **There are 2 versions of this pump although the catalog part number did not change**. \\ | **There are 2 versions of this pump although the catalog part number did not change**. \\ |
| The gearshaft for the -90A pump can be identified by having six hash marks across the top of the gear. \\ | The gearshaft for the -90A pump can be identified by having six hash marks across the top of the gear. \\ |
| ===== Body ===== | ===== Body ===== |
| | |{{:techtalk:evo:oil:26485-90a_oil_pump_body_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:26485-90a_oil_pump_body_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:26485-90a_oil_pump_body_3_by_hippysmack.jpg?direct&300|}}| |
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| | |{{:techtalk:evo:oil:26485-90a_oil_pump_body_4_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:26485-90a_oil_pump_body_5_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:26485-90a_oil_pump_body_6_by_hippysmack.jpg?direct&300|}}| |
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| | |{{:techtalk:evo:oil:26485-90a_oil_pump_body_8_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:26485-90a_oil_pump_body_9_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:26485-90a_oil_pump_body_7_by_hippysmack.jpg?direct&300|}}| |
| ===== Cover ===== | ===== Cover ===== |
| |
| | |{{:techtalk:evo:oil:26487-90a_oil_pump_cover_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:26487-90a_oil_pump_cover_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:26487-90a_oil_pump_cover_5_by_hippysmack.jpg?direct&300|}}| |
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| | |{{:techtalk:evo:oil:26487-90a_oil_pump_cover_3_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:26487-90a_oil_pump_cover_4_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:26487-90a_oil_pump_cover_6_by_hippysmack.jpg?direct&300|}}| |
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| ===== Gearshaft ===== | ===== Gearshaft ===== |
| There are two different gearshafts used for the two different pump casting numbers even though the catalog part # stayed the same. \\ | There are two different gearshafts used for the two different pump casting numbers even though the catalog part # stayed the same. \\ |
| Visually, they are identical. \\ | Visually, they are identical. \\ |
| | However, the gearshaft used in the pump with bottom casting # 26487-90A is .005" longer and has six hash marks across the top of the gear to distinguish it. \\ |
| | |
| |{{:techtalk:evo:oil:91-97_oil_pump_gearshaft_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-97_oil_pump_gearshaft_2_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:oil:91-97_oil_pump_gearshaft_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-97_oil_pump_gearshaft_2_by_hippysmack.jpg?direct&300|}}| |
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| |{{:techtalk:evo:oil:91-97_oil_pump_gearshaft_4_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-97_oil_pump_gearshaft_5_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:oil:91-97_oil_pump_gearshaft_3.2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-97_oil_pump_gearshaft_4_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-97_oil_pump_gearshaft_5_by_hippysmack.jpg?direct&300|}}| |
| |
| However, the gearshaft used in the pump with bottom casting # 26487-90A is .005" longer and has six hash marks across the top of the gear to distinguish it. \\ | |
| |
| |{{:techtalk:evo:oil:91-97_oil_pump_gearshaft_6_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-97_oil_pump_gearshaft_3.2_by_hippysmack.jpg?direct&300|}}| | |
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| ===== Gerotors ===== | ===== Gerotors ===== |
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| |{{:techtalk:evo:oil:91-97_oil_pump_gerotors_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:oil:91-97_oil_pump_gerotors_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-97_oil_pump_gerotors_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-97_oil_pump_gerotors_3_by_hippysmack.jpg?direct&300|}}| |
| ===== Separator Plate ===== | ===== Separator Plate ===== |
| The 91 oil pump only has only 1 separator plate. \\ | The 91 and up oil pumps only have 1 separator plate. \\ |
| The Moco got rid of the second plate and the spring washer as was in 86-90 pumps. \\ | |
| |
| |{{:techtalk:evo:oil:91-97_oil_pump_separator_plate_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-97_oil_pump_separator_plate_2_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:oil:91-97_oil_pump_separator_plate_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-97_oil_pump_separator_plate_2_by_hippysmack.jpg?direct&300|}}| |
