Reply to "Warning rocker arm pedestals machining on 4V heads"

rene4406Member

The Rocker arm ratio is the OEM , 1.73 and the length of the arm, the distance between the axis of the roller and the axis of the rocker arm, is 40 mm

It is on this basis that I calculated that a vertical movement of 8 mm on either side of the position perpendicular to the axis of the valve corresponds to a total horizontal displacement of:

40 - square root of (40² -8²) = 0.8 mm,

i.e. 0.4 mm on either side of the center of the stem if the rocker arm axis is located 39.6 mm from its axis

10/4/202:12 PM

<ul id="{%=id%}ButtonGroup" class="button-group h-popup-buttons even-button-group even-1">
    <li id="{%=id%}Okay_buttonContainer"><a id="{%=id%}Okay" href="javascript:void(0);" class="button success no-margin-bottom h-alert-modal-ok-button" role="button">OK</a><script type="text/javascript">
        (function() {
            function {%=id%}Okay_click(event, data) {
            {%=id%}Popup.hide();
        }
        
                $('#{%=id%}Okay').on('click', {%=id%}Okay_click);
        })();
    </script></li></ul><a href="javascript:void(0);" class="close-reveal-modal" aria-label="Close Modal">&#215;</a><div class="last-modal-focus focus-utility-element" tabindex="0"></div>
</div>
<script type="text/javascript">
        (function() {
            {%=id%}Popup = new SS.Popup.ModalPopup('{%=id%}');
        })();
    </script>

Skip to main content

Membership Required

Remove From Your Block List

Manage Follow Preferences

Block

Please wait...