I'm working on a Jeep 4 cylinder and I saw one intake valve stem a 1/4 inch higher than the others. I figure bad seat. Pull the head and that intake is tuliped the center is pulled back about 1/4 inch the rest are flat. Any ideas this motor has about 70,000 miles and has never apart.
Yeah.......very high combustion temperature ........poor quality valve.......or maybe somehow very high spring pressure ?
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