Differences
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| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
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techtalk:ref:oil06 [2021/06/30 07:16] hippysmack [77-Present Sportster Oil Pump Comparisons] |
techtalk:ref:oil06 [2022/06/24 00:37] hippysmack [Return hole in the "duck bill"] |
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| * **77-85 return to feed ratio app 2.78:1** | * **77-85 return to feed ratio app 2.78:1** | ||
| - | * Feed Height: .180", Return Height: .500" | + | * Return Height: .500", Feed Height: .180" |
| * **86-90 return to feed ratio app 1.89:1** | * **86-90 return to feed ratio app 1.89:1** | ||
| - | * Feed Height: .265", Return Height: .500" | + | * Return Height: .500", Feed Height: .265" |
| * **91-97 return to feed ratio app 1.89:1** | * **91-97 return to feed ratio app 1.89:1** | ||
| - | * Feed Height: .265", Return Height: .500" | + | * Return Height: .500", Feed Height: .265" |
| * **98-06 return to feed ratio app 2.64:1** | * **98-06 return to feed ratio app 2.64:1** | ||
| - | * Feed Height: .265", Return Height: .700" | + | * Return Height: .700", Feed Height: .265" |
| * **07-up return to feed ratio app 4.25:1** | * **07-up return to feed ratio app 4.25:1** | ||
| - | * Feed Height: .200". Return Height: .850" | + | * Return Height: .850", Feed Height: .200" |
| + | ====== Return hole in the "duck bill" ====== | ||
| + | The size of the crankcase oil inlet hole inside the duck bill changed a couple times. \\ | ||
| + | 1977-1990 return inlet hole ID = 0.250" \\ | ||
| + | 1991-1997 return inlet hole ID = 0.280" \\ | ||
| + | 1998-Present return inlet hole ID = 0.350" \\ | ||
| + | |||
| + | {{:techtalk:ref:oil:1977-present_sportster_oil_pump_return_inlet_id_by_hippysmack.jpg?direct&400|}} \\ | ||
| ====== Comparing 77-85, 98-06 and 07 and up Pumps ======= | ====== Comparing 77-85, 98-06 and 07 and up Pumps ======= | ||
