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Showing content with the highest reputation on 01/16/2020 in Posts

  1. If the orifice cups are clogged, you will never be able to accurately check servicing, as the pressurized sump may always show good, but at the expense of the atmospheric sump. The atmospheric sump is allegedly the most accurate location, so if it's inaccurate, it will always lie to you. You should check your tech data for how to clean the orifice cups. The only other option is to replace the pitchlock regulator, preferably with one that was recently overhauled to guarantee the cups are clean. One indication the orifice cups are clogged is that, when you check the pressurized sump after 2 minutes, the fluid fills up and overflows. This is due to the pitchlock regulator keeping the fluid pressurized in the system instead of draining the fluid into the barrel like it's supposed to. Be careful of those who tell you only the pressurized sump is required for an accurate fluid check. This comes from the idea that the pressurized sump dipstick actually gives you a quantity, and the atmospheric sump is only a go/no-go. The only thing the pressurized sump dipstick tells you is how much fluid is in the pressurized sump, who's job is to force-feed the pumps sending the fluid out to the valvehousing. The atmospheric sump dipstick tells you how much is in the barrel AND atmospheric sump. If there's nothing on the atmospheric dipstick, you have no idea how much is in the barrel, and that can be dangerous.
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