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  #1  
Old 12-07-2007, 04:26 PM
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fuel pressure 86' 420sel

To change out the fuel injector seals in an 86'420sel, does the fuel pressure in the lines need to be relieved? If so is it relieved by loosening the nut in the back of the fuel distributor? Also, my fuel distrubutor has what looks like oil at the seams where it mounts to the air flow meter. Would that be oil or gas or a combo? The reason I ask is because after a hard run I can smell gasoline in the motor. If I look at the engine, I see one injector that has crud all built up on it while the others are clean. Thanks for the repllies.
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Old 12-09-2007, 07:39 PM
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bump
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1984 300SD Orient Red/ Palomino
1989 560SEC
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1995 Ford F-150 reg cab 4.9 5speed manual
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Old 12-09-2007, 07:51 PM
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id replace the injector along with the seals where you see build up ..im not sue if that relieves the pressure as i have just cracked open the line to the injector to replace
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Old 12-10-2007, 04:12 PM
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no need

just put a rag on top of the injector , as you will get an initial small spray upon loosening the line , replacing the injectors and rubber seals and holders is easy , just clean the sockets good ...
Brian
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Old 12-10-2007, 04:21 PM
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I'm gonna try and get by without replacing the injector, and just get new seals and o-rings.
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2016 Mazda 6 6 speed manual
1995 Ford F-150 reg cab 4.9 5speed manual
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