[xj40] Compression - It was running at about 98% efficiency

In reply to a message from Bryan N sent Sun 10 Aug 2008:

Engine was not warm. It was not WOT.

It was a dry test…no oil.–
The original message included these comments:

Engine warm? Wide open throttle?
exhaust valve or three or blow-by between the first three


John 90 XJ40
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