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techtalk:ih:oil03b [2019/08/05 12:59] ixl2relax [IH: Oiling & Lubrication - Sub-03B] |
techtalk:ih:oil03b [2024/01/01 18:23] hippysmack |
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[[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | ||
- | ====== IH: Oiling & Lubrication - Sub-03A ====== | + | ====== IH: Oiling & Lubrication - Sub-03B ====== |
====== 77-85 Oil Pump and Parts (approximate) Dims ====== | ====== 77-85 Oil Pump and Parts (approximate) Dims ====== | ||
See also [[techtalk:ih:oil03a|77-85 Oil Pump - Individual Parts and Pics]] | See also [[techtalk:ih:oil03a|77-85 Oil Pump - Individual Parts and Pics]] | ||
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====== Roll Pin Dims ====== | ====== Roll Pin Dims ====== | ||
|{{:techtalk:ih:oil:77_oil_pump_roll_pin_dim_1_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:ih:oil:77_oil_pump_roll_pin_dim_1_by_hippysmack.jpg?direct&300|}}| | ||
+ | |||
====== Gear Shaft Dims ====== | ====== Gear Shaft Dims ====== | ||
The same gear shaft part number (26488-75) was used from 77-90. \\ | The same gear shaft part number (26488-75) was used from 77-90. \\ | ||
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However, there are variations of the exact length of the shaft. \\ | However, there are variations of the exact length of the shaft. \\ | ||
- | **Reported Dims**: ((DirtyCory of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153&page=8)) \\ | + | **Reported Dims**: ((DirtyCory of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when/page8?t=2071153&page=8)) \\ |
The shaft lengths reportly vary from around 4.160" to 4.205". \\ | The shaft lengths reportly vary from around 4.160" to 4.205". \\ | ||
The shaft diameters vary from 0.495" to 0.496". \\ | The shaft diameters vary from 0.495" to 0.496". \\ | ||
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Distance from drive gear to retaining ring groove 2.580". \\ | Distance from drive gear to retaining ring groove 2.580". \\ | ||
The only difference in markings on the 2 shaft lengths other than the length itself is the hash marks on top of the gear. \\ | The only difference in markings on the 2 shaft lengths other than the length itself is the hash marks on top of the gear. \\ | ||
- | Also noticed was that some of the holes in the gearshaft for the pins are drilled to different depths. ((DirtyCory of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153&page=3)) \\ | + | Also noticed was that some of the holes in the gearshaft for the pins are drilled to different depths. ((DirtyCory of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when/page3?t=2071153&page=3)) \\ |
|{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_comparison_1_by_dirtycory.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_comparison_2_by_dirtycory.jpg?direct&300|}}| | |{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_comparison_1_by_dirtycory.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_comparison_2_by_dirtycory.jpg?direct&300|}}| | ||
- | |Longer shaft (L), Shorter shaft (R) with hash marks \\ on the top. Reason for the hash marks presently \\ unknown. ((photo by DirtyCory of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153&page=8))| Lengths slightly different. ((photo by DirtyCory of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153&page=8)) | | + | |Longer shaft (L), Shorter shaft (R) with hash marks \\ on the top. Reason for the hash marks presently \\ unknown. ((photo by DirtyCory of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when/page8?t=2071153&page=8))| Lengths slightly different. ((photo by DirtyCory of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when/page8?t=2071153&page=8)) | |
The dims in the pics below were taken on a driveshaft from a used 79 oil pump. ((photos by Hippysmack)) \\ | The dims in the pics below were taken on a driveshaft from a used 79 oil pump. ((photos by Hippysmack)) \\ | ||
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|{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_bushing_dim_3_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_bushing_dim_5_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_bushing_dim_3_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_bushing_dim_5_by_hippysmack.jpg?direct&300|}}| | ||
+ | |||
====== Gear Shaft Retaining Ring Dims ====== | ====== Gear Shaft Retaining Ring Dims ====== | ||
|{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_retaining_ring_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_retaining_ring_2_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_retaining_ring_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_retaining_ring_2_by_hippysmack.jpg?direct&300|}}| | ||
+ | |||
====== Gear Shaft Pin Dims ====== | ====== Gear Shaft Pin Dims ====== | ||
Gear shaft pin (26430-76) \\ | Gear shaft pin (26430-76) \\ | ||
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Different pins were mic'd and the dims noted as below: \\ | Different pins were mic'd and the dims noted as below: \\ | ||
|{{:techtalk:ih:oil:gearshaft_pin_dims_by_dirtycory.jpg?direct&200|}}| | |{{:techtalk:ih:oil:gearshaft_pin_dims_by_dirtycory.jpg?direct&200|}}| | ||
- | | Various pin lengths noted using \\ NOS and used pins ((photo by DirtyCory of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153&page=3)) | | + | | Various pin lengths noted using \\ NOS and used pins ((photo by DirtyCory of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when/page3?t=2071153&page=3)) | |
Below are more dims (parts from taken from a 79 oil pump). | Below are more dims (parts from taken from a 79 oil pump). | ||
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It's easy to rock it out of square with the gerotor. | It's easy to rock it out of square with the gerotor. | ||
|{{:techtalk:ih:oil:77-85_oil_pump_feed_gerotor-checking_tolerance_by_6_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_feed_gerotor-checking_tolerance_by_7_hippysmack.jpg?direct&300|}}| | |{{:techtalk:ih:oil:77-85_oil_pump_feed_gerotor-checking_tolerance_by_6_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_feed_gerotor-checking_tolerance_by_7_hippysmack.jpg?direct&300|}}| | ||
+ | |||
===== Return (scavenge) Gerotors ===== | ===== Return (scavenge) Gerotors ===== | ||
**77-E83 Chamfered Return Gerotors** \\ | **77-E83 Chamfered Return Gerotors** \\ | ||
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✔ Maximum wear limit between the inner and outer gerotor set is .004" ((70-78 Sportster FSM pg 3-27)) | ✔ Maximum wear limit between the inner and outer gerotor set is .004" ((70-78 Sportster FSM pg 3-27)) | ||
|{{:techtalk:ih:oil:77-85_oil_pump_gerotors-checking_tolerance_2_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:ih:oil:77-85_oil_pump_gerotors-checking_tolerance_2_by_hippysmack.jpg?direct&300|}}| | ||
+ | |||
====== Separator Plate Dims ====== | ====== Separator Plate Dims ====== | ||
|{{:techtalk:ih:oil:outer_plates_by_dirtycory_-_annotated.jpg?direct&500|}}| | |{{:techtalk:ih:oil:outer_plates_by_dirtycory_-_annotated.jpg?direct&500|}}| | ||
- | | Outer plate comparison ((photo by DirtyCory of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153)) | | + | | Outer plate comparison ((photo by DirtyCory of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when?t=2071153)) | |
- | ===== Inner Plate ===== | + | |
+ | ===== Inner Plate ===== | ||
|{{:techtalk:ih:oil:77-85_oil_pump_inner_separator_plate_dim_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_inner_separator_plate_dim_6_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:ih:oil:77-85_oil_pump_inner_separator_plate_dim_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_inner_separator_plate_dim_6_by_hippysmack.jpg?direct&300|}}| |