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Pruge valve testing?
Does anyone know how much pressure is need to keep purge vent on mercury verado 2005 250hp. I've tested and holds only 15psi and very slowly the pressure drops. And also does anyone know how much resistance is for good purge vent, on my multimeter on 200 ohms show me 19.0 ohms. Thank you in advance
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Mercury 3L/4 Stroke/Verado Moderator
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Purge valve is just that, it's open or it's closed (and it really doesn't have a "pressure test" rating). Under normal engine-running circumstances you should not have fuel or pressure present at the port located near the purge valve.