Reply to "Ticking valves?"

panteradougMember

I have worked on these engines with mileage in the 30,000 to 40,000 mile use and have seen very worn rocker arm tips on them.

It is a high friction area.

Many popular engine oils will loose viscosity after one run at the drag strip.

The car will go out with 100psi oil pressure and come back to the pits with 10psi. Change the oil and it's back up.

3,000 miles with a conventional oil is all the engine should go. After that you are creating wear, on items like the rocker arms.

Unfortunately on a used car how do you know how many times the oil was changed? 50,000 miles? Maybe only 5 times.

Yes you can "mill" the bottom of the rocker arm pedestal .010" and if that works then you probably are fine.

Personally I don't like to do this stuff even once. I would look at a set of Ford Racing roller tip rocker arms now, put hem in, change the lifters to hi-rev hydraulics and be done with the thing forever.

6/29/082:40 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...