Differences
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| techtalk:ih:oil03e [2021/11/07 19:57] – [Inspection / Maintenance] hippysmack | techtalk:ih:oil03e [2024/01/01 18:40] (current) – hippysmack | ||
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| ====== IH: Oiling & Lubrication - Sub-03E ====== | ====== IH: Oiling & Lubrication - Sub-03E ====== | ||
| - | ====== 77-85 Oil Pump Removal and Inspection | + | ====== 77-85 Oil Pump Removal and Disassembly |
| ====== Removal ====== | ====== Removal ====== | ||
| * The 77-85 gerotor pump can be removed with the engine in the frame and the gearcase cover installed. | * The 77-85 gerotor pump can be removed with the engine in the frame and the gearcase cover installed. | ||
| * Disconnect the oil lines and oil pressure switch wire. | * Disconnect the oil lines and oil pressure switch wire. | ||
| * Remove the four mounting bolts and the pump should drop down. | * Remove the four mounting bolts and the pump should drop down. | ||
| - | * There is a flat spot on the frame just under the pump. ((IronMick of the XLFORUM | + | * There is a flat spot on the frame just under the pump. ((IronMick of the XLFORUM |
| * The complete pump assembly comes out as a unit. | * The complete pump assembly comes out as a unit. | ||
| - | * It´s not possible to take only the cover out because of the of limited space between the cover and frame. ((acb2 of the XLFORUM | + | * It´s not possible to take only the cover out because of the of limited space between the cover and frame. ((acb2 of the XLFORUM |
| - | * Its a tight squeeze but you can wriggle the pump out. ((russzx6 of the XLFORUM | + | * Its a tight squeeze but you can wriggle the pump out. ((russzx6 of the XLFORUM |
| ===== Pump Stuck to Engine Case ===== | ===== Pump Stuck to Engine Case ===== | ||
| The FSM says to apply gasket sealer to the gasket before installation. \\ | The FSM says to apply gasket sealer to the gasket before installation. \\ | ||
| - | There are also times when a gasket could not be found, so RTV or other sealers were used in addition to or instead of a gasket. ((Farmer00-1 of the XLFORUM | + | There are also times when a gasket could not be found, so RTV or other sealers were used in addition to or instead of a gasket. ((Farmer00-1 of the XLFORUM |
| Therefore, expect that to make it more difficult to remove the pump from the engine. \\ | Therefore, expect that to make it more difficult to remove the pump from the engine. \\ | ||
| * First, be patient with it. | * First, be patient with it. | ||
| - | * Try to turn the motor over by hand. It may push the pump out. ((Jason' | + | * Try to turn the motor over by hand. It may push the pump out. ((Jason' |
| * Try a rubber mallet. | * Try a rubber mallet. | ||
| * Gently tap down on the pump's rear side so you're not forcing extra pressure against the drive gear on the pinion shaft. | * Gently tap down on the pump's rear side so you're not forcing extra pressure against the drive gear on the pinion shaft. | ||
| * Try a short piece of 2x4 to gently tap on the pump. | * Try a short piece of 2x4 to gently tap on the pump. | ||
| * Try using a crowbar with a " | * Try using a crowbar with a " | ||
| - | * It's a wood working tool for pulling nails. ((123456qwerty of the XLFORUM | + | * It's a wood working tool for pulling nails. ((123456qwerty of the XLFORUM |
| ===== Gasket Removal ===== | ===== Gasket Removal ===== | ||
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| Below PB Blaster was used with an auto window scraper. ((photos by Hippysmack)) \\ | Below PB Blaster was used with an auto window scraper. ((photos by Hippysmack)) \\ | ||
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| ===== Stuck Cover Gasket ===== | ===== Stuck Cover Gasket ===== | ||
| The spring washer inside the pump puts a lot of tension against the cover. \\ | The spring washer inside the pump puts a lot of tension against the cover. \\ | ||
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| * However, a 24 hour soak will help to soften the gasket / sealer and make it easier to break free. | * However, a 24 hour soak will help to soften the gasket / sealer and make it easier to break free. | ||
| - | | Carburetor Cleaner ((photo by Hippysmack | + | | Carburetor Cleaner ((photo by Hippysmack |
| |{{techtalk: | |{{techtalk: | ||
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| This oil pump had to be soaked overnite before the cover would separate from the body. \\ | This oil pump had to be soaked overnite before the cover would separate from the body. \\ | ||
| - | | Cleaning and soaking gaskets for more easy removal ((photos by Hippysmack | + | | Cleaning and soaking gaskets for more easy removal ((photos by Hippysmack |
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| ====== Disassembly ====== | ====== Disassembly ====== | ||
| Wiggle the cover off and the feed gerotors are exposed. | Wiggle the cover off and the feed gerotors are exposed. | ||
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| * The outer plate is held in place by a solid pin in the gearshaft. \\ | * The outer plate is held in place by a solid pin in the gearshaft. \\ | ||
| * It's a loose fit in the hole in the gearshaft and it's held in place by tension of the spring washer between the plates. | * It's a loose fit in the hole in the gearshaft and it's held in place by tension of the spring washer between the plates. | ||
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