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Power Strokes
7.3 Aftermarket
Who has had 180/30 or 180/80 for towing
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[QUOTE="The Brad, post: 1528407, member: 14154"] The exhaust valve is roughly 2.2 square inches in area. 80psi drive pressure would act against roughly 78lbs of seat pressure with 176lbs of force. Add to that, the hydraulic pressure acting on the lifter and you’ll get lifter jacking. The opposing pressure in the cylinder is only happening half of the time, during the compression and power strokes, but that’s assuming that the valve was able to seal on the seat with inadequate seat pressure and a pumped up lifter. [/QUOTE]
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Who has had 180/30 or 180/80 for towing
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