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techtalk:evo:engmech02c [2022/09/07 17:52] hippysmack [Oil to the lifter body] |
techtalk:evo:engmech02c [2022/09/07 18:09] hippysmack ↷ Links adapted because of a move operation |
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Examining internal lifter oil paths from the lifter bore to the rocker arms will show some of these dynamics. \\ | Examining internal lifter oil paths from the lifter bore to the rocker arms will show some of these dynamics. \\ | ||
- | {{:techtalk:ref:oil:1991-1999_sportster_lifter_body_internals_by_hippysmack.jpg?direct&400|}} ((photo by Hippysmack)) {{:techtalk:ref:oil:1991-1999_sportster_lifter_cutaway_by_hippysmack.jpg?direct&400|}} ((photo by Hippysmack)) \\ | + | {{techtalk:evo:engmech:1991-1999_sportster_lifter_body_internals_by_hippysmack.jpg?direct&400|}} ((photo by Hippysmack)) {{techtalk:evo:engmech:1991-1999_sportster_lifter_cutaway_by_hippysmack.jpg?direct&400|}} ((photo by Hippysmack)) \\ |
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In the drawing below, dims were taken from a 1998 1200S lifter and bore showing that oil feed is never blocked to the lifter. \\ | In the drawing below, dims were taken from a 1998 1200S lifter and bore showing that oil feed is never blocked to the lifter. \\ | ||
The cams are Andrews N-4s so actual lift may vary. However, the feed hole in the bore should be the same for at least 1991-1999 Sportsters. \\ | The cams are Andrews N-4s so actual lift may vary. However, the feed hole in the bore should be the same for at least 1991-1999 Sportsters. \\ | ||
- | {{:techtalk:ref:oil:AAA1998_sportster_lifter_to_bore_feed_hole_relationship_by_hippysmack.png?direct&500|}} ((drawing by Hippysmack)) \\ | + | {{:techtalk:evo:engmech:1998_sportster_lifter_to_bore_feed_hole_relationship_by_hippysmack.png?direct&500|}} ((drawing by Hippysmack)) \\ |
====== Oil to the plunger reservoir ====== | ====== Oil to the plunger reservoir ====== | ||
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The plunger is free to rotate invariably both during assembly and when not under load. \\ | The plunger is free to rotate invariably both during assembly and when not under load. \\ | ||
- | {{:techtalk:evo:oil:1991-up_sportster_lifter_anatomy_by_hippysmack.png?direct&500|}} ((drawing by Hippysmack)) \\ | + | {{techtalk:evo:engmech:1991-up_sportster_lifter_anatomy_by_hippysmack.png?direct&500|}} ((drawing by Hippysmack)) \\ |
====== Role of the check disc ====== | ====== Role of the check disc ====== | ||
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And the pressure chamber is what actually raises the engine valves. | And the pressure chamber is what actually raises the engine valves. | ||
- | {{:techtalk:ref:oil:1991-up_sportster_lifter_pushrod_cup_by_hippysmack.png?direct&500|}} ((drawing by Hippysmack)) \\ | + | {{techtalk:evo:engmech:1991-up_sportster_lifter_pushrod_cup_by_hippysmack.png?direct&500|}} ((drawing by Hippysmack)) \\ |