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Old 11-12-2011, 11:29 PM
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Help! Injector install gone wrong

Started doing a simple injector replacement on my buddies 7.3 excursion and did the passenger bank tonight got it all done and now the engine acted like its hydro locked so I bared the engine over and it moves fine and now when I go to start it it makes a horrible racket I hope the starter just took a dump from it hitting a stop but I hope someone has an idea what it may be I've done 4 full injector replacements on 7.3's and never had this happen and never drained the rails prior to removing injectors
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Old 11-12-2011, 11:39 PM
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stupid question but are the injectors from a reliable source and with all new gaskets....
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Old 11-12-2011, 11:43 PM
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Yeah the are straight from alliance I bought my injectors through the same dealer as did the other sets
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Old 11-12-2011, 11:53 PM
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is it still acting like it is hydrolocked or did it only do it at first
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Old 11-13-2011, 07:29 AM
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Now it will crank it just makes a horrible grinding sound so I'm hoping it's just a starter
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Old 11-13-2011, 03:33 PM
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Top tab on the starter was sheared off after a new starter and some priming cranks she fired thank god
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Old 11-13-2011, 07:45 PM
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Drained the rail on the drivers side install and is acting hydro locked again
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Old 11-13-2011, 08:48 PM
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You need to pull all the glowplugs AFTER installing new injectors and spin it over until there is no more oil and fuel in the cylinders (it makes a mess,but spin it over with the starter until nothing is blowing out the GP holes). It's acting hydrolocked because it is hydrolocked. Be careful, you can and will bend a rod if it starts with liquid in the cylinders.
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Old 11-13-2011, 09:31 PM
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I spun it over by hand with the injectors out
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Old 11-13-2011, 09:35 PM
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Quote:
Originally Posted by hollister25073 View Post
I spun it over by hand with the injectors out
well that isn't even CLOSE to good enough. You NEED to spin it over WITH THE STARTER with the injectors installed, but the glow plugs out. I guarentee that if you remove the GP's, unplug the UVCH, and spin it over with the starter, you will get a geyser out of the cylinders. Spinning it over by hand with the injectors out will not get enough of the oil and fuel out of the cylinders.
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