lbz injector replacement - Chevy and GMC Duramax Diesel Forum
06-07 LBZ & LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

 
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post #1 of 8 (permalink) Old 09-21-2010, 09:19 AM Thread Starter
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Question lbz injector replacement

i am in need of detailed instructions on how to replace my injectors. can anyone help me out
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post #2 of 8 (permalink) Old 09-21-2010, 08:57 PM
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Well it fairly simple. just remove anything in the way to get to them, pull the clip that holds the return line on, pull the injector holddown, and take off the high pressure line and pull it out. But may i ask why you are replacing them? you almost never need to replace them on an LBZ

Daily driver:06 LBZ Custom cut pistons and head studs, lift pump EFILive and built trans by me by me and a few other goodies 521/1065 on stock turbo and injectors sold
Barn hauler:08 LMM 3500 regular cab Exhaust, EFILive by me. head studs, (bought it with blown head gaskets) and a little other custom work
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post #3 of 8 (permalink) Old 09-23-2010, 07:50 AM Thread Starter
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well i replaced injectors and the collars (that go in the heads) on my buddies power stroke and between looking at his 7.3 and my 6.6 i noticed that our setup was sort of similar and to help him do his repair was a 3 day pain in the a**. i was looking for documentation on the procedure cause the haynes manual doesn't really show much on how to replace injectors or the collars in the event that they go bad
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post #4 of 8 (permalink) Old 09-23-2010, 03:08 PM
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YOUR DURAMAX ONLY BUSINESS, VISIT US HERE --> WWW.DMAXSTORE.COM <-- WE ARE KRYPTONITE STEERING & SUSPENSION!
WE OFFER YOU A DURAMAX ONLY STORE WITH A FULL DURAMAX ONLY SERVICE DEPARTMENT ON SITE! CONTACT US 4UR DMAX!!

Mine - 04.5 LLY ECSB 4WD, Paint Matched Ram Air Hood & Tonneau, 3" Drop on 22's w/Fox 2.0's, DMAXSTORE XD UCA's, Kryptonite Tie Rods, Kryptonite SS Center Link, Kryptonite T-Case brace, Kryptonite T-Case, HSP Intake, HSP Turbo Inlet, HSP Hot & Cold Pipes, HSP DP, FASS 150-FASS Bowl Delete, Beans Sump, PPE Fuel Mods, DMAXSTORE Stage 5 Trans & Idaho Robs EFI Live - 1/4 @ 13.3 - 102.5mph
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post #5 of 8 (permalink) Old 09-23-2010, 08:41 PM
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LBZs have no collars or sleeves. That is all machined into the head. The injectors are on the outside of the valve covers so no taking a lot of stuff apart. Pretty simple actually

Daily driver:06 LBZ Custom cut pistons and head studs, lift pump EFILive and built trans by me by me and a few other goodies 521/1065 on stock turbo and injectors sold
Barn hauler:08 LMM 3500 regular cab Exhaust, EFILive by me. head studs, (bought it with blown head gaskets) and a little other custom work
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post #6 of 8 (permalink) Old 09-23-2010, 08:50 PM
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Good to know.

How fast could one go from good to needing replacement?

If a guy were checking balance rates every so often. Would there be a sign it was going bad, or just a surprise?

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post #7 of 8 (permalink) Old 09-23-2010, 09:18 PM
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I have never seen any go bad. The only time i have seen is cause of bad fuel or getting something in the system. They dont seem to wear out

Daily driver:06 LBZ Custom cut pistons and head studs, lift pump EFILive and built trans by me by me and a few other goodies 521/1065 on stock turbo and injectors sold
Barn hauler:08 LMM 3500 regular cab Exhaust, EFILive by me. head studs, (bought it with blown head gaskets) and a little other custom work
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post #8 of 8 (permalink) Old 09-23-2010, 10:33 PM
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good to know they are easy to change... my cummins was not that bad, but a job and my ford, well that was a nightmare... I had no idea when i bought my lbz they would be easy....also nice to know that they seem to last.... 109k on my d-maxer and still going strong


YOUR DURAMAX ONLY BUSINESS, VISIT US HERE --> WWW.DMAXSTORE.COM <-- WE ARE KRYPTONITE STEERING & SUSPENSION!
WE OFFER YOU A DURAMAX ONLY STORE WITH A FULL DURAMAX ONLY SERVICE DEPARTMENT ON SITE! CONTACT US 4UR DMAX!!

Mine - 04.5 LLY ECSB 4WD, Paint Matched Ram Air Hood & Tonneau, 3" Drop on 22's w/Fox 2.0's, DMAXSTORE XD UCA's, Kryptonite Tie Rods, Kryptonite SS Center Link, Kryptonite T-Case brace, Kryptonite T-Case, HSP Intake, HSP Turbo Inlet, HSP Hot & Cold Pipes, HSP DP, FASS 150-FASS Bowl Delete, Beans Sump, PPE Fuel Mods, DMAXSTORE Stage 5 Trans & Idaho Robs EFI Live - 1/4 @ 13.3 - 102.5mph
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