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oil burn cleanup

  1. Internal engine cleaning

    Engine Topics
    I bought my 67 Elky with a freshly rebuilt 400. It was consuming a quart of oil every 500 miles and I was having to clean ash buildup off plugs every 1,500 (now has 9,000 since build). About 1,000 miles ago I fixed the problem. It had umbrella seals on all valves (including intake). I...