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Off idle stumble solved B230FT 700

posted by  Rolyak on  Wed Apr 25 14:57 CST 2012
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last visit: Fri Oct 24 08:03 CST 2014
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Recently pulled the the injectors after a misfire condition lasted for about 2-5 miles. Discovered the plastic cap for the #4 injector was gone,thought that may have been cause of the miss?

Had some aftermarket caps (black) not yellow like Bosch. Did not suspect the cap on #4 might be creating an off idle stumble but pulled the injectors again and #4 was distorted and partially obstructing the tip.

Obviously exhaust was gassy and mileage dropped due to dripping not atomized fuel

Hoping a new Bosch cap stays in place (snapped on) Strange?








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    Use nothing but Bosch inj. caps 700

    posted by  Rolyak on  Fri May 11 20:01 CST 2012
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    last visit: Fri Oct 24 08:03 CST 2014
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    Had planned to replace all the aftermarket caps or as Bosch calls them "protective sleeves" but since the stumble returned I put the job on high priority tonight. Sure enough the two remaining caps were either already "digested" or disolved! Apparently they were not resistant to gasoline?








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    Off idle stumble solved B230FT 700

    posted by  Rager on  Fri Apr 27 04:31 CST 2012
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    last visit: Fri Apr 27 04:34 CST 2012
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    Ah, just a comment..

    I did a little shade tree work on my old Ford Contour (Mazda 2.0L) and knocked a cap off an injector as well. Those end caps are nearly impossible to remove but I got another one off. And then I noticed that I'd broken the end of the pintle too! New injector for ME!
    --
    NE Oh '87 740 turbo wagon







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