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Found 3 results

  1. Robin

    280Z piston rings

    Wanted, new .030 over ITM Ring set for 280z
  2. I did a compression test on my recently rebuilt 260z engine. It has about 1500 miles on it. On the dry test with the carb fully open and the coil wire off I get the following results # 1 thru #5 came in at about 72 lbs but the # 6 came it at around 90lbs On the wet test all came in at 90 lbs including the # 6. I am rather new to this and this is the first time I have done a compression test, so my questions are- why would the # 6 not change from a dry to wet test. The warranty expires next week on this engine and I wanted to do this test prior to the warranty expiring.Is this something to be concerned about? Thnaks zdude1967
  3. Hi, I just had my 260 engine rebuilt. It is running like s**T. I did a poor mans compression test (finger over the spark plugs while cranking engine) and the # 5 seemed to have no compression. In any case the engine is under warranty and the company that rebuilt it seems to be rather clueless. I say this because they want to check the carbs as they think this may be the issue. Now I do not claim to be Mr. Goodwrench but my understanding of this engine leeds me to believe that if there is no compression or very weak compression it would either be the valves or the rings. Would someone please let me know if there could be other reasons besides the rings or valves or if I am clueless with my ring/valve theory. By the way they claimed they checked the valves and that they are fine which is why they are moving to the carbs. Thanks Glenn
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