Originally posted by windrain:
Hi, it's my mondeo that is impersonating a diesel.
.....
The compression pressure is 225 psi. It should be between 130 and 215 psi. ...
Welcome onboard.
Not sure where you got those specs, or how you translated them to compression ratios quoted in Bill's post above, however 225 doesn't seem far off, only +5%.
Can't find compression ratio or pressure spec in my service manual. All it says is lowest cylinder compression should be at least 75% of highest. Manual then gives a table to do the math for you by listing highest pressure from 134psi to 222psi and giving the corresponding 75% lowest pressure figure.
So, unless you exceed the variation spec, you are probably OK.
98 Mystique LS v6 atx 163,000km
97 Contour LX v6 atx 163,000km
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