wet/dry compression test

["J. Doss Halsey" <halsey@xxxxxxxxxxx>]

John,

>The results are:
>87 Milano           84 GTV6
>1: 192                180
>2: 190                185
>3: 130                175
>4: 195                180
>5: 197                180
>6: 195                170

>What are the odds that #3 is not a valve problem?

Perhaps you could try a wet compression test where you squirt a few
teaspoons of motor oil in each cylinder before testing (helps the rings to
seal). A distinct difference in the wet/dry readings points to rings as
opposed to valves.

Doss
'87 Milano (disclaimer: this diagnostic technique never used on this car)

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