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Re: What’s wrong with this 1964 230ci?
Final testing was done today. I brought the engine temp to 195*. Then I did a dry and wet leak-down test on #4, #5 and #6 with the piston a few degrees past TDC. I used 75-90 gear oil to wet the rings.
I think the numbers confirm that I’m losing compression at the top of the cylinder from cylinder wall taper.
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