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oil vectra rocker cover

  1. Oil In Plug Wells On Vectra X20XEV

    Engines and Transmission
    Car: 1996 Vectra 2L 16v Hi, A lot of oil has leaked down around the spark plugs on my X20XEV engine. The rocker cover seal and those around each cover bolt were replaced last year and appear OK still. Cover is tight. Does anyone have any other ideas where this oil could come from ? many thanks