Duramax Diesels Forum Truck of the Week
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Old 11-04-2008, 06:08 PM
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Default Injector Removal and Install

I am going to be installing larger injectors as a winter project and was just looking for a little advice. Truck is an 07' Lbz. I will probably have mine sent out and have them extrude honed (not sure who yet). Is there anything major to watch for or is it pretty simple? Also just curious how much time would be needed for removal?

Thanks, Jim
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Old 11-04-2008, 06:10 PM
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yours is easy compared to an LB7

Just make sure you work clean and dont drop anything in the cylinders Good Luck
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Old 11-10-2008, 12:07 PM
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Originally Posted by Jared Duramax View Post
yours is easy compared to an LB7

Just make sure you work clean and dont drop anything in the cylinders Good Luck
How about time? Any idea how much time for removal. I'm just curious
is all.
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Old 11-10-2008, 12:16 PM
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i couldnt see more than a couple hours to do it but that really depends on the tools avalable.

i wish i would have gotten an injector line tool so that i could put a ratchet on instead i used a flare nut wrench and i banged my hands a few times
Ill try to get you a part number for the injector line tool
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Old 11-10-2008, 12:47 PM
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I think it took me 3 or 4 hours to remove and swap two injectors (#5 and #6)... With a trip to the dealer for the gold-plated O-Rings. Getting TO the injectors was actually harder and more time consuming than actually getting them out.

You WILL need new O-rings (My O-rings came out broken; I woulnd't suggest re-using them regardless of the age), and should probably replace the copper washers. They're both about $8!
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Old 11-10-2008, 01:03 PM
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Quote:
Originally Posted by Jared Duramax View Post
i couldnt see more than a couple hours to do it but that really depends on the tools avalable.

i wish i would have gotten an injector line tool so that i could put a ratchet on instead i used a flare nut wrench and i banged my hands a few times
Ill try to get you a part number for the injector line tool
Quote:
Originally Posted by Cougar281 View Post
I think it took me 3 or 4 hours to remove and swap two injectors (#5 and #6)... With a trip to the dealer for the gold-plated O-Rings. Getting TO the injectors was actually harder and more time consuming than actually getting them out.

You WILL need new O-rings (My O-rings came out broken; I woulnd't suggest re-using them regardless of the age), and should probably replace the copper washers. They're both about $8!
Thank you very much guys, this is what I was looking for. I kinda figured o-rings should be replaced. Are they a dealer only item?

Jared if you could get me a part # that would be great...
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Old 11-10-2008, 01:53 PM
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here is the part number OTC7453A but by the price you may just want to deal with getting some smashed fingers but an LBZ may be completly different than a LB7 and not as difficult to work on
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Old 11-10-2008, 03:42 PM
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Quote:
Originally Posted by Jared Duramax View Post
here is the part number OTC7453A but by the price you may just want to deal with getting some smashed fingers but an LBZ may be completly different than a LB7 and not as difficult to work on
LB7 injectors are a PITA LBZ are easy breezy
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Old 11-10-2008, 03:53 PM
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It should only take you about 3- 4 hours to swap all of them. Just make sure you clean everything
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Old 11-10-2008, 06:27 PM
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Quote:
Originally Posted by Jared Duramax View Post
here is the part number OTC7453A but by the price you may just want to deal with getting some smashed fingers but an LBZ may be completly different than a LB7 and not as difficult to work on
Quote:
Originally Posted by WolfLLY View Post
It should only take you about 3- 4 hours to swap all of them. Just make sure you clean everything

Thanks guys....
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Old 11-10-2008, 06:29 PM
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Quote:
Originally Posted by RENODMAX View Post
LB7 injectors are a PITA LBZ are easy breezy
thats good to know
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Old 11-10-2008, 10:01 PM
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Quote:
Originally Posted by Jared Duramax View Post
thats good to know
Is it Doesn't seem like it to me
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Old 12-10-2008, 08:23 PM
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You might also make sure you don't drop the little wafer that is at the top of the needle. If you lose it, it will cost you an injector. It is the size of a ball point pen. Make sure you have no distractions when doing it.
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Old 12-10-2008, 08:38 PM
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Quote:
Originally Posted by Jared Duramax View Post
thats good to know
no it isnt that sucks for me i need a tranny and cp3 before injectors anyway
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