Here is a hopefully helpful tip for you Panhead and Shovelhead owners or technicians.
When servicing the lifter blocks, observe the drain holes. If they are the small, single hole as pictured, drill them out as I have done, using an eighth inch (1/8″) aircraft extension bit.
Why the special bit? Because it is longer than a standard bit and will keep you from jamming yer’ dang drill chuck into the lifter block, tearing up your customers chrome or paint. Read more.
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