EMISSION PROBE PARTS TUBE: 3/8” OD x wall Stainless Steel Length determined by pipe diameter and placement of connecting end to allow easy connection of the heated sample line. Long tubes may be bent to place connection end in desirable location. 3/8 Nut-Ferrule sets (Swagelok SS-600-NFSET) Probe Adapter: Swagelok fitting SS BT (3/8 NPT to 3/8 Tube, Bored Through) Cap Tube with Swagelok Cap SS-600-C (if keeping probe installed) Or Plug Adapter with Swagelok Plug SS-600-P (if probe is removed) 45 o Mitered End

EMISSION PROBE INSTALLATION Scribe Line to Identify 45 o Mitered Face Weld/braze adapter fitting to exhaust pipe (Do NOT use epoxy as shown in this mock-up) Mitered face in center of pipe and facing upstream Check the rules regarding probe locations. The probe can NOT be located near the end of the pipe as shown in this mock-up

COUPLER ORIENTATION For all Quick Disconnect couplers (fuel, coolant, supply, return); Flow is out of the male coupler and into the female coupler. NOTE: Contact to request couplers (provided free of charge to registered FLOW

COOLANT COUPLERS The black, Coolant Couplers shown above have been discontinued. New couplers, white, slightly smaller, and also with a ¾” hose barb, MUST BE USED. The new couplers will not mate with the old style couplers. For information on the new HFC couplers:

Hot Coolant from Engine into Heat Exchanger Cooled Coolant into Engine Inlet line and Outlet line are each 80” long Closed Loop Engine Cooling System Utilizing a brazed plate Heat Exchanger (Closed Loop = Pressure can build up to radiator cap’s relief pressure) Cold Side of Heat Exchanger Temperature Regulating Valve opens based on the temperature of the coolant returning to the engine

Engine Colder Male Quick Disconnect OPTIONAL Colder Female Quick Disconnect Participant’s Responsibility Test Facility Responsibility FUEL SYSTEM for EMISSION TESTING The sled’s fuel tank must be disconnected so that the test facility’s fuel measuring system supplies all the fuel. The test facility will supply a low pressure fuel. Teams need to supply their own external fuel pump and regulator to ensure that the engine receives fuel at the correct pressure. Teams must have the Colder Quick Disconnects installed for both emission events. For the in-service emission event, take into consideration accessibility of the QD’s and routing of the external fuel line(s). The QD’s are not required during the other events in the competition. Questions regarding the emission fuel system requirements should be directed to Fuel Tank Fuel Return Line Colder Female Quick Disconnect OPTIONAL Colder Male Quick Disconnect (if have a return line) Mass Flow Meter Fuel Supply Fuel Cooler Fuel Supply Regulator Low Pressure 1-5 psi Low Pressure Fuel Feed to Engine Fuel Supplied at Low Pressure High Pressure PUMP Filter Transfer Pump

Fuel Return line (if required) High Pressure Fuel to Regulator/engine Facility FUEL System Must measure all fuel consumed during the emission events External Fuel Pump Must be supplied by teams needing Fuel Pressure greater than 3-5 psi Facility Fuel Return line Facility Fuel Supply line 3 -5 psi During the In-Service Emission Event The facility's fuel lines must run from the engine to the emission test sleigh Fuel Couplers should be located to provide easy access and allow the cowling to be closed during the In-Service emission test.