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    Penta GX-i Compression results? Help?

    Hi, I put in a great offer on a 2006 Cruiser with Twin Volvo Penta 5.0V8 GX i engines. I had a proper compression test done and attached are the results. I was kind of shocked surprised with 466 hours at the results. I know is well possible but don't see this much from a 2006 engines at all. I...
  2. M

    Penta GSi Compression Head and/or Rings?

    Hi, I am new to this forum! I Just had a compression done on a 2008 Penta GSi 5.7 engine. The numbers were 200 - 190 in all the cylinders except 2 on opposite sides. One side was 150, the other was 140. The boat Tech is a very reputable Guy, well known for his 40+ years of experience, honesty...
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