12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

wastegate adjustment

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Old Apr 23, 2010 | 09:32 AM
  #1  
cummins95's Avatar
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Diesel Wrench
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From: Sullivan County, PA
Default wastegate adjustment

im always toyin under the hood of my truck and the other night i slipped and snapped off my boost elbow and i had to put the stock fitting back in. 17 psi isn't very efficient for keepin this pig cool, so right now i have the line plugged, but im also not a big fan of 50 psi, high drive pressures and a pegged egt gauge... the old boost elbow helped, but it wasn't adjustable n i couldn't get over like 25 psi
i'd like to adjust the wastegate itself to open at 35, but im not sure which way to go. do i wanna make the rod longer or shorter? i'd like to fix this the right way n not with a "presidential solution"
 
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Old Apr 23, 2010 | 10:05 AM
  #2  
85_305's Avatar
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From: Buffalo, NY
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Dude just order a 16$/shipped adjustable boost elbow off of ebay and call it a day.
 
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Old Apr 23, 2010 | 10:18 AM
  #3  
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From: Pennsylvania
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I have an adjustable elbow laying around somewhere. If I can find it it's yours.
 
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Old Apr 23, 2010 | 01:32 PM
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From: Corpus Christi, Tx.
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I got an adjustable from ebay, for about 20 bucks including shipping. But as it turned out I didn't do enough research for a '94. Seems I can't use it without taping the turbo hosing...

Arrived in about 4 days....

http://cgi.ebay.com/ebaymotors/Adjus...Q5fAccessories
 
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Old Apr 23, 2010 | 01:54 PM
  #5  
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From: Pearland Tx
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Originally Posted by Threesixty
I got an adjustable from ebay, for about 20 bucks including shipping. But as it turned out I didn't do enough research for a '94. Seems I can't use it without taping the turbo hosing...

Arrived in about 4 days....

Adjustable Boost Elbow ---Dodge Cummins Turbo hx35 hx40 : eBay Motors (item 300394038373 end time May-06-10 11:23:13 PDT)
there is a metal line at the back of your afc that is where your elbow goes
 
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Old Apr 23, 2010 | 02:40 PM
  #6  
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From: Pennsylvania
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The elbow goes in the compressor housing that line is what controls the wasetgate. The line to the afc you want at full boost (no elbow).

I couldn't use the elbow on mine since it senses pressure for the gate and the afc at the same port on the afc.
 
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