Differences
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| techtalk:evo:oil03i [2018/12/24 01:25] – [86-90 Oil Pump (26204-86) Individual Parts and Pics] hippysmack | techtalk:evo:oil03i [2024/01/05 03:43] (current) – hippysmack | ||
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| ===== Oil Pump Cover ===== | ===== Oil Pump Cover ===== | ||
| - | |||
| * The bottom cover is HD catalog number (26486-86). | * The bottom cover is HD catalog number (26486-86). | ||
| * The casting number (26487-86) is in the feed cavity. | * The casting number (26487-86) is in the feed cavity. | ||
| Line 64: | Line 63: | ||
| The installed lower pin also holds the outer plate in the pump body. \\ | The installed lower pin also holds the outer plate in the pump body. \\ | ||
| The length of this pin could be a potential issue under the right conditions. \\ | The length of this pin could be a potential issue under the right conditions. \\ | ||
| - | Too short and it could get make it's way into the hole in the plate and tear the seal. \\ | + | Too short and it could get make it's way into the hole in the plate and upset the center of the pressed in seal. \\ |
| This could induce slop in the plate and allow it to try to spin the plate against the roll pin in the body. \\ | This could induce slop in the plate and allow it to try to spin the plate against the roll pin in the body. \\ | ||
| As well as create a leak from the feed side and allow oil to float up into the engine thru the gearshaft bore. \\ | As well as create a leak from the feed side and allow oil to float up into the engine thru the gearshaft bore. \\ | ||
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| ====== Outer Plate ====== | ====== Outer Plate ====== | ||
| - | |||
| The outer plate is the bottom plate (with the pump installed). \\ | The outer plate is the bottom plate (with the pump installed). \\ | ||
| The feed gerotors sit under this plate. \\ | The feed gerotors sit under this plate. \\ | ||
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| Notice the difference of the cut out or recessed area of the inside diameter of the outer plates. \\ | Notice the difference of the cut out or recessed area of the inside diameter of the outer plates. \\ | ||
| - | This is for the different style of seals. ((DirtyCory of the XLFORUM | + | This is for the different style of seals. ((DirtyCory of the XLFORUM |
| Either plate will fit 77-90 oil pumps with their respective seals. \\ | Either plate will fit 77-90 oil pumps with their respective seals. \\ | ||
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| - | | Outer plate comparison ((photo by DirtyCory of the XLFORUM, annotated by Hippysmack | + | | Outer plate comparison ((photo by DirtyCory of the XLFORUM, annotated by Hippysmack |
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