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Re: What’s wrong with this 1964 230ci?
Lugnutz:
I recently had to check a 292 inline 6 for overall health. It passed a cranking compression test fine, but the leak down was a little suspect on a couple of cylinders. I ended up pulling the head and then making a sealing plate that mounted in the head bolt locations. This allowed me to pressurize each cylinder and use my leak down tester. The cylinders were fine. I then flipped the plate over and used it to seal the head and tested for leaks. I found a couple of exhaust valves leaking (easy to tell by sound). That was easily cured by lapping the offending valves. My problem was mostly carbon build up.
This particular 292 was a GM replacement engine from the late 80's so its overall condition was pretty good.
Cris
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