Differences
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techtalk:ih:oil03 [2019/11/14 05:35] hippysmack [Oil Pump Cycle] |
techtalk:ih:oil03 [2019/12/04 00:27] hippysmack [Sub Documents] |
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| In 1972 and with the birth of the 1000cc engine, the pump numbers were -72. \\ | In 1972 and with the birth of the 1000cc engine, the pump numbers were -72. \\ | ||
| It had larger gears and a bigger breather slot. \\ | It had larger gears and a bigger breather slot. \\ | ||
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| + | Some pump gear data from kitabel**: ((kitabel of the XLFORUM http://xlforum.net/forums/showthread.php?p=5792413#post5792413)) \\ | ||
| + | The pitch distance of 14 & 16 tooth pumps is not the same. \\ | ||
| + | All driven and idler gears have .422" ID center holes. \\ | ||
| + | 14 tooth gears (1952-61) are .970" OD. \\ | ||
| + | All feed gears are .217" thick. \\ | ||
| + | All return gears are .360" thick. \\ | ||
| + | 16 tooth gears (1962-76, also all 45 & UL return pumps) are 1.115" OD. \\ | ||
| + | 1962-71 feed are .185" thick. \\ | ||
| + | 1962-71 return .375" thick. \\ | ||
| + | 1972-76 return .398" thick. \\ | ||
| + | 45 & UL 1937-73 return .315" thick. \\ | ||
| + | Inspect your spares and purchases carefully - 1936-* OHV BT gears are 14 tooth, but .990" OD and only the driven gears have .422" ID hole (the idlers are .342"). \\ | ||
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| ====== XR-750 Oil Pumps (only) ====== | ====== XR-750 Oil Pumps (only) ====== | ||
| * From 1972 to 1989, the gear driven oil pump went through several changes. | * From 1972 to 1989, the gear driven oil pump went through several changes. | ||
