1999 International B250 7.3 DIT (Ford Powerstroke)

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1999 International B250 7.3 DIT (Ford
Powerstroke)
OE crankcase gas vent to intake system
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2000 International DT444E
Cummins Enviroguard open crankcase system

• OE Crankcase deflector rotated 180o
• on DT444E with original open crankcase vent tube
  configuration
• Picture from, A Multi-City Investigation of the
  Effectiveness of Retrofit Emissions Controls in
  Reducing Exposures to Particulate Matter in
  School Buses, Clean Air Task Force Crankcase
  Study, published Jan 2005

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1999 International B250 (Ford Powerstroke)Extent
of Intake Air Fouling in OE configuration
Crankcase Gas Entry Port
Turbo clean
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OE Piece Racor 3550 Direct Fit Kit(shown after
test)
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Racor 3550 Kit Installation
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Racor Filter Cartridge- After Test
Outlet Clean
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FTPs performed

• Baseline in OE closed crankcase configuration
• Baseline with open crankcase and blowby gas
  measurement from OE closed crankcase system
• Done by removing rubber hose from intake air and
  rotating 90 degrees and connecting to blowby
  measurement apparatus. Intake Air port sealed.
• Control with Racor 3550 and AZ Purimuffler
• This will afford performance measures for engines
  with closed and open crankcase configurations
• Will provide worst case (smallest contribution)
  crankcase contribution

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Racor CCV Product Line
Large Non-road engines
MHDE, HHDE
Industrial engines
LHDE, MHDE