[Spridgets] rocker knock
Bob Spruck
raspruck at gmail.com
Thu Sep 29 09:34:43 MDT 2016
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.
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.
Bob
On 9/28/2016 7:43 PM, mdrowe via Spridgets wrote:
> 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?
> Michael Rowe
> The Holy Sprite
>
>
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