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Duramax Second Generation: 2004.5-2005 (LLY) Discuss the second generation (2004.5-2005 LLY) of the 6.6L Duramax diesel engine & associated components. 2006 LLY engine discussion belongs in Third Generation forum due to the differences of the 2006 LLY and the 2004.5-2005 LLY. Engine related discussion ONLY.

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Old 10-21-2005, 03:17 PM   #21 (permalink)
Idle_Chatter
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Here's the LB7 downpipe:



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Old 10-21-2005, 03:58 PM   #22 (permalink)
HBruns
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Quote:
Originally Posted by Idle_Chatter View Post
Here's the LB7 downpipe:

Uh.... yea. I can se eit clearly (in my mind).

Pics?

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Old 10-21-2005, 06:45 PM   #23 (permalink)
Idle_Chatter
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Can you se eit from these?
Attached Images
File Type: jpg 45b8.jpg (33.6 KB, 360 views)
File Type: jpg f6fe.jpg (38.1 KB, 373 views)
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"To summarize, we conclude that the Second Amendment protects an individual right to keep and bear arms. That right existed prior to the formation of the new government under the Constitution and was premised on the private use of arms for activities such as hunting and self-defense, the latter being understood as resistance to either private lawlessness or the depredations of a tyrannical government (or a threat from abroad)."

United States Court of Appeals for the District of Columbia -- March 9, 2007
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Old 10-21-2005, 07:25 PM   #24 (permalink)
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NICE PICS! Turbine and wastegate too.
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Old 10-21-2005, 07:28 PM   #25 (permalink)
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It's a shame that engineers didn't turn the turbo about 30 degrees or so, counter clockwise.(intake towards the driver) It seem to me, and I'm no expert, that it would allow for a reduction of that initial 90 degree bend. The down pipe appears to be oval shape past that point, or at least down towards the flange. (just above the weld) I wouldn't think that a oval shape would effect the flow so long as it is the same volume capacity.

The real problem would be in the complexity of re-plumbing everything afterward. You would need to replace the intake and exhaust pipes, and for what kind of gains?
Not to mention how would you even get to the back side of the engine to even trun a wrench!
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Old 10-21-2005, 07:36 PM   #26 (permalink)
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Thanks! Briano!

I certainly appreciate these!



Mike
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Old 10-21-2005, 08:38 PM   #27 (permalink)
turbo-max
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Quote:
Originally Posted by killerbee View Post
Does the EGR feed tube (arrow) branch from the downpipe? Can't really see it.
no, i had my down pipe off...and i can say it is a horrible biaatch to remove/replace
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Old 10-21-2005, 08:56 PM   #28 (permalink)
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neat
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Old 10-21-2005, 09:25 PM   #29 (permalink)
WilliamBos
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........

Hey,

That's gotta be a bh to work on? How long does it take to change out the entire exhaust?


Thanks,

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Old 10-22-2005, 12:10 AM   #30 (permalink)
dozerboy
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Quote:
Originally Posted by WilliamBos View Post
Hey,

That's gotta be a bh to work on? How long does it take to change out the entire exhaust?


Thanks,

Will


IIRC a little longer than it will take you to pull the tranny or the body off.

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