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Registered
Join Date: Mar 2005
Location: Northern CA
Posts: 4,703
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^^^ good setup. As far I can tell also the orifice dimensions come from the aviation world. IMO the "spec." is not very exact but probably good enough. One might think a chart or table of flowrate and delta pressure exists somewhere but as mentioned what they have now is good enough.
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Sold: 1989 3.2 coupe, 112k miles |
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10-25-2021, 04:56 AM
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Join Date: Mar 2019
Posts: 1,599
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The spec for the orifice size is in the FAA regs.
"For an engine cylinder having less than a 5.00-inch bore; 0.040-inch orifice diameter; .250 inch long; and a 60-degree approach angle." The approach angle and length are critical for comparisons between two different leakdown testers. |
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10-25-2021, 07:06 AM
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Registered
Join Date: Mar 2005
Location: Northern CA
Posts: 4,703
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To close this out. Buyers never asked about a compression test after seeing the leak-down test. So I didn't retest with a hot or warm motor. Car sold. Issue is resolved.
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Sold: 1989 3.2 coupe, 112k miles |
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12-09-2021, 07:26 PM
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