Please correct my understanding.
If the intake valve are too lose, it means they open too late and close too early and thus does NOT take in full charge and thus making engine sluggish.
If the exhaust valve are too right, that means they open too early and close too late, it means exhaust gases escape through the exhaust valve reducing the effective compression and also making the exhaust port too hot and possibly burning them.
Something interesting which was noted by my shop. He had seen quite a few MDX and Pilot with random misfire codes tracked to needing valve adjustment but never had any Odyssey with similar issues. This is all empirical but I am wondering if there is some theoretical basis to it. The engines are very much similar but I wonder if the compression ratio and cam profile etc are somewhat different in these two applications.
If the intake valve are too lose, it means they open too late and close too early and thus does NOT take in full charge and thus making engine sluggish.
If the exhaust valve are too right, that means they open too early and close too late, it means exhaust gases escape through the exhaust valve reducing the effective compression and also making the exhaust port too hot and possibly burning them.
Something interesting which was noted by my shop. He had seen quite a few MDX and Pilot with random misfire codes tracked to needing valve adjustment but never had any Odyssey with similar issues. This is all empirical but I am wondering if there is some theoretical basis to it. The engines are very much similar but I wonder if the compression ratio and cam profile etc are somewhat different in these two applications.