Differences
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techtalk:evo:engmech02c [2022/09/07 18:09] hippysmack ↷ Links adapted because of a move operation |
techtalk:evo:engmech02c [2024/01/03 19:51] hippysmack |
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====== EVO: Engine Mechanicals - Sub-02C ====== | ====== EVO: Engine Mechanicals - Sub-02C ====== | ||
====== Hydraulic Lifter - Mechanical and Hydraulic Operation ====== | ====== Hydraulic Lifter - Mechanical and Hydraulic Operation ====== | ||
- | The hydraulic lifters used in HD motors have about .200 of (useable) plunger travel ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=322680&page=5)) (about .230" if they bottom out, which is not good). \\ | + | The hydraulic lifters used in HD motors have about .200 of (useable) plunger travel ((aswracing of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-engine-conversions/59164-i-think-i-screwed-up-with-new-cam-install/page5?t=322680&page=5)) (about .230" if they bottom out, which is not good). \\ |
As long as it's preloaded between about .050 and .150, it adjusts itself properly. So in other words, there's about a .100" range of pushrod length. \\ | As long as it's preloaded between about .050 and .150, it adjusts itself properly. So in other words, there's about a .100" range of pushrod length. \\ | ||
The lifter will automatically adjust it's length to make it all work properly. \\ | The lifter will automatically adjust it's length to make it all work properly. \\ | ||
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System oil pressure goes all the way thru the lifters to the rocker boxes. \\ | System oil pressure goes all the way thru the lifters to the rocker boxes. \\ | ||
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{{:techtalk:evo:oil:1991-1999_sportster_hydraulic_lifter_by_hippysmack.gif?direct|}} ((animation by Hippysmack)) \\ | {{:techtalk:evo:oil:1991-1999_sportster_hydraulic_lifter_by_hippysmack.gif?direct|}} ((animation by Hippysmack)) \\ | ||
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====== Oil to the lifter body ====== | ====== Oil to the lifter body ====== | ||
System oil pressure is fed through the lifter bores into the outer oil band that circles the lifter body. \\ | System oil pressure is fed through the lifter bores into the outer oil band that circles the lifter body. \\ |