Method for setting lash in a mechanically lashed valvetrain having a switching rocker arm
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United States of America Patent
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Jul 2, 2019
Grant Date -
May 4, 2017
app pub date -
Jan 13, 2017
filing date -
Jul 14, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A method for setting lash on a switching rocker arm assembly includes providing a rocker arm having (i) an outer arm having a first outer side arm and a second outer side arm, the outer arm defining an opening, (ii) an inner arm disposed between the first and second outer side arms, (iii) a roller follower that selectively engages a cam, the roller follower mounted about a bearing axle that extends through the opening. A zero lash shim is inserted into a gap defined between the bearing axle and the outer arm at the opening. The rocker arm is installed into the valvetrain with the master tip cap. Lash is measured between the cam and the roller follower. The rocker arm and the master tip cap is removed. A select fit valve tip cap is installed based on the master tip cap and the measured lash.
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