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04-11-2014 06:45 AM #15
CHR Member
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- Sep 2005
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- Car Year, Make, Model: 69 nomad, 73 charger, 74 vega
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A change in indication IS a change in the actual pressure.
Your pressure guage indicates relative to atmospheric pressure.
The crankcase vacuum added algebraicaly against the oil pump output reducing the output pressure relative to atmospheric pressure.
By venting the crankcase, you reduced parasitic load of the pump, increasing its efficiency, and increasing the output pressure ..
Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
EG
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A belated Happy 78th Birthday Roger Spears
Belated Happy Birthday