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Originally Posted by BUP
(Post 4451809)
the tiny o ring seal is very important as well make sure that is new and not deformed when installed in between the FPR. Also did you install the correct FPR for this app ?
Did you install a new GEN II cool fuel KIT ? There is 3 different cool fuel kitys to choose from just saying. I will have to go through the whole fuel line , filter , pumps. . |
I am not even sure these pumps can produce 70 PSI? The max pressure they can produce is in absence of vacuum at the regulator, so start the motor and pull the vacuum line from regulator...most I get is 43-45 PSI on Gen II systems.
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Originally Posted by Naughty Kitty
(Post 4452824)
I am not even sure these pumps can produce 70 PSI? The max pressure they can produce is in absence of vacuum at the regulator, so start the motor and pull the vacuum line from regulator...most I get is 43-45 PSI on Gen II systems.
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Only fuel system I 've seen do this is an ATIsupercharger system that uses an FMU.
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Originally Posted by SB
(Post 4452857)
Only fuel system I 've seen do this is an ATIsupercharger system that uses an FMU.
I will have a proper look at it next week |
Fuel psi at idle with the vacuum hose disconnected should be same fuel psi as WOT at top rpm with vac hose connected to fpr.
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Originally Posted by BUP
(Post 4451159)
43 psi + or - 2 psi
2001 fuel pressure reg is mounted into the gen 2 cool fuel assembly I have heard these called dampers but the book callers them Fuel/P R ?? |
Paul your referring to the device where the fuel line attaches to the rail? You are correct it is a pulse dampener and they manage fuel pulsing and limit noise, will have no affect on rail pressure.
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many people think thats FPR on the fuel rails - I have been saying its the DAMPER for years up here - and I have posted this before (the Merc SB) as to what it is exactly.
http://ww2.justanswer.com/uploads/ke...5804_EN_09.pdf |
A symptom of a delaminated cool fuel housing is high fuel pressure from what I have read. Might be worth pulling the rail and inspecting for paint.
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