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Join Date: Apr 2006
Location: Singapore
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Very high fuel pressure. A spilt fuel hose. blown fuel pump as well

First i though i had some hesitation, sure enough i could start yesterday, slight crack in fuel hose from the fuel pump. today i replaced the fuel pump along with a new fuel hose, the i noticed today the airflow lever was kinda of jammed up and difficult to move. But it start up with very low idle after moving the air flow meter the rpms increase thou i was stil running rough.. two mins later the fuel hose ruptured. The fuel pump was running very hot and next the fuel pump is dead AGAIN. I rember replacing the fuel pump six months ago so something must be wrong. The car is eating the fuel pump the interval replacing them is getting shorter. I am suspecting a spoilt fuel distributor. I've never ever experienced this problem in my whole life.

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1983 911 SC
Old 08-21-2010, 04:45 AM
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to high of press could be a bad reg. on the fuel dist. or, more likly, a plugged return line back to the tank. the cis tank has a 90 degree bend inside the tank for the return line, and it will stop up there somtimes. blow air through the return line from the rear, you should hear bubbling in the front.
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fully disassembled, blasted, customized and restored 75 targa with factory hard top, 993 style turbo ft fenders, steel flares, C2 bumpers and rockers, 82 3.0 sc 9.5/1 engine with PMS flywheel, 964 cams, flowed heads, ssi's short geared 915 w/lsd, polybronze, bilstein,working lambda, modified and highly tuned cis, tensioners, pop valve, backdated exhaust and heater, 2300 lbs. no bolt left untouched. 1970 911E. Nice car but needs a re-do.
Old 08-21-2010, 06:13 AM
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Thanks, i am going to start work on the car pretty soon. But i somehow suspect the fuel distributor is shot i am tempted to buy one right now while typing.
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1983 911 SC
Old 08-21-2010, 08:52 AM
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Jaytan Industries in Stanton, CA. Owner is Terry ... used to own Python Industries till the bean counters knocked him out. He can do a rebuild for you. They have a website. Do a Google search.
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Ron Meier
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Old 08-21-2010, 09:27 AM
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I like the plugged return line idea as it seems like that would cause increased pressure and strain on the fuel pump... but so could other issues I suppose. That's and easy/free thing to check out though.
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Old 08-21-2010, 09:43 AM
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oh man i hope so else i'll have to spend that 1600 dollars.. It's a shock to me still never expected such a strain on the fuel pump. Two days ago i took it to 6000 rpm and now its dead!

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1983 911 SC
Old 08-21-2010, 09:48 AM
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