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techtalk:ih:general02 [2017/03/22 04:45] hippysmack |
techtalk:ih:general02 [2021/05/26 17:15] (current) hippysmack [Piston] |
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| </WRAP>| | </WRAP>| | ||
| ((Harley Davidson 1970 - 1977 Service Manual)) | ((Harley Davidson 1970 - 1977 Service Manual)) | ||
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| + | [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] | ||
| ===== Service Interval Engine and Transmission ===== | ===== Service Interval Engine and Transmission ===== | ||
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| *Starter Motor Thru Bolt (Hitachi): 20 - 25 in-lbs / 27.11 - 33.89 Nm | *Starter Motor Thru Bolt (Hitachi): 20 - 25 in-lbs / 27.11 - 33.89 Nm | ||
| + | [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] | ||
| ====== 1970 - 1977 Sportster Engine Specifications ====== | ====== 1970 - 1977 Sportster Engine Specifications ====== | ||
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| ===== Piston ===== | ===== Piston ===== | ||
| *Fit in cylinder: .003 - .004 in. loose | *Fit in cylinder: .003 - .004 in. loose | ||
| - | *Ring Gap: .005 - .025 in. | + | *Ring Gap: .015 - .025 in. |
| *Ring side clearance: .0035 - .005 in. | *Ring side clearance: .0035 - .005 in. | ||
| *Piston pin fit: Light hand press fit at 70 degrees Fahrenheit. | *Piston pin fit: Light hand press fit at 70 degrees Fahrenheit. | ||
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| - | ====== 1970 - 1977 Sportster Transmission Specifications ====== | ||
| - | |||
| - | ===== Clutch ===== | ||
| - | *Type | ||
| - | * 1970: Dry - Multiple disc | ||
| - | * 1971 & later: Wet - Multiple disc | ||
| - | * Capacity: 1971 & later: 1900 in-lbs. | ||
| - | * Set up Spring Pressure | ||
| - | * 1970: 150 lbs. | ||
| - | * 1971: 234 lbs. | ||
| - | * 1972: 257 lbs. | ||
| - | * Spring adjustment | ||
| - | * 1970: 3/16 in. from inner surface of spring tension adjusting plate to outer surface of spring cup flange | ||
| - | * 1971 - 1973: 11/32 in. from outer surface of outer drive plate to outer surface of releasing disc | ||
| - | * Late 1974 & later: Fixed spacers standard length 1.530 in. | ||
| - | * Clutch bearing: .0005 - .002 in. loose | ||
| - | * Clutch cover | ||
| - | * 1970: Must be leak proof. No gasket sealer | ||
| - | * Clutch release rod movement | ||
| - | * 1970: .095 - .115 in. | ||
| - | |||
| - | ===== Chain ===== | ||
| - | *Type primary: 3/8 in. pitch triple chain | ||
| - | *Looseness: 5/8 to 7/8 in. slack (cold engine) - 3/8 to 5/8 in. slack (hot engine) | ||
| - | |||
| - | ===== Starter ===== | ||
| - | * Minimum clearance between clutch teeth on starter clutch gear and clutch with starter in up position: .040 in. | ||
| - | * Crankshaft endplay: .001 - .007 in. | ||
| - | |||
| - | ===== Chain ===== | ||
| - | *Type primary: 3/8 in. pitch triple chain | ||
| - | *Looseness: 5/8 to 7/8 in. slack (cold engine) - 3/8 to 5/8 in. slack (hot engine) | ||
| - | ===== Mainshaft Group ===== | ||
| - | |||
| - | |||
| - | ===== Countershaft Group ===== | ||
| [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] | ||
