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The hole is an indicator if the seal leaks and a telltale dirty watermark will appear from that hole.
AussieBill YYYY Forever Y Block YYYY Down Under, Australia
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Hitting on all eight cylinders
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Last Active: 14 Years Ago
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Hi The water pum on my 312 Y Block has a hole drilled where the shaft runs through- what is this for? It looks like it is possibly to drip some lubrication in? Can eanyone enlighten me? Thanks in Advance
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