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<p><font size="+1"><font face="Arial">I have an alloy valve cover on
my 1275 vintage race engine that has had lots of grinding on
the inside in the vicinity of every rocker arm. I also have
three other "spare" alloy valve covers, two of which have been
relieved on the inside and one that has not. The one that has
not is noticeably narrower than the others and has not been
ground. So, there are apparently some narrower valve covers
out there that would need grinding to clear even a stock
engine. May be from a Mini or ??? Of course, I have no idea of
the origin of any of my valve covers. <br>
</font></font></p>
<p><font size="+1"><font face="Arial">I would go with internal cover
grinding rather than taking the chance that stacking valve
cover gaskets would heighten the valve cover or nuts so they
interfere with the bonnet unless you can devise a way to
measure the clearance.</font></font></p>
<p><font size="+1"><font face="Arial">Bob</font></font><br>
</p>
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<div class="moz-cite-prefix">On 9/28/2016 7:43 PM, mdrowe via
Spridgets wrote:<br>
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</style><span id="x8a6f58eedf4243a1bf78bc3365748680">
<div>I had a�very loud knock that sounded absolutely fatal, and
I was really worried that I was going to have to open this
engine up a�second time.� It turned out to be�an adjustment
screw on the high-lift rockers hitting the alloy valve
cover.��A simple solution is to put on�a second gasket to
raise the height of the cover.� Anyone encountered this
before?� </div>
<div>�</div>
<div>Michael Rowe</div>
<div>The Holy Sprite</div>
</span>
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