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A fellow Pelacanite
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1981 UK 930. G50/01 shortened, 964 3.8RS Fibreglass Body Kit, 18" Alloys 8.5" F & 10" R, 225's F & 285's R, Special Colour Metallic Blue Paint, FIA Sparco Evo's, A/C and Air Pump removed, Electronic Boost Controller, GHL Headers, Tial46 WG. Fitting - New service kit. Needs Fitting - Innovate XD-16 Kit, Kokeln IC. Stephen's K27 HFS, EVO Intake Assy & his Modded USA Fuel Head. 1983 UK 911 3.2 Carrera Sport Coupe. Black, Black Leather with Red Piping, Black Alloy Gear Knob, K&N Air Filter Element, Turbo Tie rods. Needs Fitting - K&N CO Sensor, Round A/F Dial Gauge, Factory Short Shift Kit. http://www.danasoft.com/sig/Iamnotanumber.jpg |
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03-23-2008, 01:56 PM
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Registered User
Join Date: Apr 2006
Location: New Zealand
Posts: 3,248
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You can check the cut out pressure by removing it and screwing it into a tyre valve fitting, or similar and pressurising with a pressure gauge teed in. Put a multi meter (resitance) across the terminal and body and see when it triggers.
But when it is earthed - ie contact made with the housing, the fuel relays go. When it pings off this contact - no fuel. Mine is/was doing same thing - fuel now, now no fuel. The terminal in the housing was a bit loose - I can wiggle it. When I hold it left I have fuel, when I let it go, no fuel. Bit cramped inside there to hold it all the time - I'm about to order another one right now. Alan |
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03-24-2008, 10:36 PM
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Registered User
Join Date: Jun 2001
Location: Sweden
Posts: 5,564
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Hello!
Switch should trip at 1.15 bar or so. I assume trip boost will vary according to age and switch tolerances. Switch will effectivly disconnect when trip boost is reached and it will shut both fuel pumps. I recomend to leave the switch in the loop as it's your only safeguard should wastegate pressure line or membrane develop a leak. I sure tripped mine before I found out my membrane was shot. Also if BOV is not working correctly, switch might trip inadvertly during shifts as boost will spike when you lift off the throttle.
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Thank you for your time, |
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03-25-2008, 05:13 AM
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