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Duramax Third Generation: 2006-2007.5 (LBZ & LLY) Discuss the third generation (2006-2007.5 LBZ & LLY) of the 6.6L Duramax diesel engine & associated components. 2006 LLY engine discussion also belongs in this forum due to the similarities of the 2006 LBZ and the 2006 LLY. Engine related discussion ONLY.

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Old 04-16-2019, 07:30 PM   #1 (permalink)
cdog
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Flywheel housing Oil Leak

Anyone had this happen yet? What is the estimated cost to have a shop fix it? I've diagnosed it after replacing the oil cooler gaskets and putting dye in the oil with Copperhead diesel in mesa..

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Old 04-16-2019, 09:29 PM   #2 (permalink)
TheBac
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Rear main? Why not ask Copperhead what they'd charge to repair it?

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Old 04-16-2019, 10:27 PM   #3 (permalink)
cdog
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Quote:
Originally Posted by TheBac View Post
Rear main? Why not ask Copperhead what they'd charge to repair it?
Not the main. Apparently there are oil seals or rtv that seals between the block and the flywheel housing. I'm waiting for a quote. Want to know what's typical...
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2006 Chevrolet crw cab 4x4 LBZ.
Mods: 4 inch SS magnaflow turbo back, cat delete, Allison deep pan, tranny cooler flip mod, Titan 52 gallon tank, Reese signature 5th hitch, Via Air system with 3 gallon tank, Firestone air bags, train horns, Alpine navi, 285/17í Cooper SSTís on satin black Method standards,Bilsteins, Cognito UCA's, steps, blacked out bow tie, PPE oil pan, PPE manifolds up & down pipes, Mishimoto Hot & cold pipes, PPE rad hoses, billet wheel on turbo, PPE Dual Fueler, satin black powder coated intake & valve cover, PPE PCV kit with breather can, Russell stainless brake lines & hawk pads.
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Old 04-16-2019, 11:16 PM   #4 (permalink)
TheBac
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Hmm...turbo oil drain does go into the top of the adapter plate. Im guessing anywhere from $600-800 to repair. Maybe more. Good luck.
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"BBT" -- 2003 GMC 2500HD CC/SB 4x4 - 12.14 @ 111.15
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"The Cruzer" -- 2014 Chevy Cruze Diesel -- the DD

Marlene (Molly) Bacon -- 1936 - 2019 -- RIP Mom
You're missed both at home and on the piano

Success is getting what you want. Happiness is wanting what you get.
Reality is a matter of perspective.

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