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844 exhaust diffuser
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James Coons View Drop Down
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Joined: 18 Jan 2012
Location: Arizona
Points: 473 		Post Options Post Options   Thanks (0) Thanks(0)   Quote James Coons Quote  Post ReplyReply Direct Link To This Post Topic: 844 exhaust diffuser
    Posted: 18 Mar 2016 at 12:54am
I have need to replace the tube that connects the turbine outlet to the exhaust elbow on an HD16M.  Its NLA from the dealers.  I've tried local truck shops and parts houses with no luck.  Anyone ever come across a source for a replacement?  The part I need is #7 in the diagram.
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Mactractor View Drop Down
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Joined: 20 Jun 2011
Location: New Zealand
Points: 652 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Mactractor Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 2016 at 3:34am
Eliminated both diffuser and cast elbow on one of my 11`s. Used standard truck turbo flange with lightweight exhaust elbow, so didnt need extra support pedestal. Turbo provided all the support
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Lazyts View Drop Down
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Joined: 05 Feb 2012
Location: Manitoba
Points: 632 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Lazyts Quote  Post ReplyReply Direct Link To This Post Posted: 19 Mar 2016 at 10:36am
You might want to try Arnold's Allis Chalmers in Colusa, CA- they've been able to help me out with all my HD11 manifold problems.  www.arnoldsallischalmers.com
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DMiller View Drop Down
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Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 33693 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 19 Mar 2016 at 11:50am
My 7G had the educator for the air filter already gone when I got it(similar to the illustration on the right), the original attached to the hood stack was gone and a hole enlarged for commercial exhaust piping.  I have often considered reattaching a home made educator for the air filter to pull pre-cleaner dirt but never got to it.  My exhaust elbow does not fit tight to the turbo due to erosion so it seeps some, have also never tried to locate any pieces to correct that issue.
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