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Join Date: Sep 2002
Location: France
Posts: 646
MFI fuel problem (first start)

Hello
Is there any issue with bleeding the fuel lines on a MFI pump.
I have no fuel in the injector lines, is there a pressure valve on the inlet side ?
my fuel pump is right
this is a 019 RS Bosch pump

thanks
Philippe


Last edited by philippeF; 03-28-2007 at 07:24 AM..
Old 03-27-2007, 08:58 AM
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Join Date: Jan 2005
Location: KENDAL,CUMBRIA, UK
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HI Philippe I usually leave the union loose on the injector and crank over the engine untill the fuel bleads out of the nut and then tighten them up ???

regards mike
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Regards mike

1983 911 SC sport, 1982 mini city
Old 03-27-2007, 10:21 AM
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hello Mike

yes i will try again, it seems that there's no valve on the MFI pump fuel intake right ?
Old 03-27-2007, 11:32 AM
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Here's my "exit of the barn" (body, engine complete refection)
i've to bleed (fuel) or check or do whatever to make it start !
thanks again for the top level advices here : Chris Bennet, Henry Schmidt, and many others....
It wants to start, i sprayed some fuel in the air box, and immediately ran, but i have some trouble to bleed (no fuel in the injector lines)
trying that seriously on Saturday
Philippe
may you confirm my fuel lines diagram ?



Old 03-28-2007, 03:03 AM
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HI Philippe if you loosen the injector pipe at the injector and spray like you did before you will bleed the pipes quicker with the engine trying to run, you do have a valve on the top of the pump where each injector pipe fits and the injector as well , to push the fuel through. has the pump been stud / not used for some time??

regards mike

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1983 911 SC sport, 1982 mini city
Old 03-28-2007, 11:01 AM
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