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Recent content by RumGuy

  1. R

    Old OMC overheating 1971 307

    I have a problem that I believe I have narrowed down to the 1971 Stringer outdrive: The engine is a GM 307. I have good FLOW through to my intermediate housing, but no PRESSURE. When at any planing speed, my engine temp climbs, and water flow goes primarily to the left manifold. Removing the...
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