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Oil / Fuel pressure sensors

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chiru

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Hi All,
with the installation of the pressure sensors on the firewall instead of on the engine, isn't there a risk that the lines dont fill up completely and there remains some air inside ?
I can drain the line once in function by unscrewing the sensor and letting the air go out but then the sealant may be removed as well.
I guess that placing the ports below the exit point is not sufficient to let the air exit as there is no flow.
Any opinions / ideas ?
Thank you
 

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