Douglas Lee
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- Joined
- Sep 5, 2024
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- 28
Run it!
Even if you used a compression gauge with a hose a mile long, the reading would be the same as one with a short hose like the one in the picture. It just would take longer to measure it. Think of it as inflating a tire: with the same supply pressure, the same tire pressure will be reached, but a big tire takes more time to fill.Proper valve adjustment on the tight side of in-tolerance would be advised. See what you get after with a compression gauge FOR SMALL ENGINES. Not some 454 chevy compression gauge with a foot long hose.
View attachment 70468
Throttle plate and choke plate fully open while cranking?Compression was done dry. Six or seven cranks with electric starter (until reading reached max).