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HD5 injector
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farmer Mark2 View Drop Down
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Joined: 08 Sep 2018
Location: ontario
Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote farmer Mark2 Quote  Post ReplyReply Direct Link To This Post Topic: HD5 injector
    Posted: 08 Sep 2018 at 4:38pm
Hello, I have an HD5 and have discovered that one of the control racks is stuck in the fuel shut off position.  It feels like steel on steel stuck.  I have used some penetrating oil but have little faith.  I'm no engine mechanic.  I assume if the control rack can't be moved I will have to remove the injector.  Is this correct?  If so could someone walk me through taking the injector out?  Thank you.  Mark
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HD6GTOM View Drop Down
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Joined: 30 Nov 2009
Location: MADISON CO IA
Points: 6627 		Post Options Post Options   Thanks (0) Thanks(0)   Quote HD6GTOM Quote  Post ReplyReply Direct Link To This Post Posted: 08 Sep 2018 at 9:06pm
Be very careful with those old Detroit's. If you get them a little off they will run away on you. I Was a Detroit mechanic for a while, but its been 45 years since I worked on one, better let someone else help you.
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8667 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 08 Sep 2018 at 11:49pm
Unbolt rocker bolts,leave bolts hanging in stands and force over center away from injector.(push rods are spring loaded).Remove rack control tube,fuel lines,injector clampand get a hook bar under body and pry up/out.It will have carbon baked around nozzle but comes easy once broke loose. Prefer you clean hole in head of carbon and the copper seat before installing. I never worked on an injector,just bought remans. Setting injector height(timing) is not as easy as it looks and "close" isn't close enough.Adjusting rack control tube is tricky too. Timing and control tube adjustment makes the difference between "it will run" and runs like it's supposed to.
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DiyDave View Drop Down
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Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 54381 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 09 Sep 2018 at 5:06am
First, welcome to the forum.  Second, You should read and post in the appropriate forum, in this case, the construction equipment section.  There was just a thread, on a similar problem:
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farmer Mark2 View Drop Down
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Joined: 08 Sep 2018
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Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote farmer Mark2 Quote  Post ReplyReply Direct Link To This Post Posted: 09 Sep 2018 at 12:39pm
Thank you all very much.
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