Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on January 25, 1993.
As of Monday, October 7th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Models
All 855 CDI Cummins turbocharged heavy-duty diesel engines equipped with a Cummins PTG non-Air Fuel Control (AFC) style fuel pump

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-263-1
  • Executive Order 263-1 / D263-1
  • ARB # D-263-1
  • Executive Order No: D-263-1
  • C.A.R.B. No. D-263-1
  • Resolution D-263-1
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-263-1 PDF

D-263-1 Document:

CARB_D-263-1

(Page 1 of 2) State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—263—1 Relating to Exemptions Under Section 27156 of the Vehicle Code RIGHETTI ENTERPRISES RE—2 ANEROID SYSTEM Pursuant to the authority vested in the Air Resources Ecard by Section 27156 of the Vehicle Code; and Pursuant to the authority vested in the undersigned by Sections 39515 and 39516 of the Health and Safety Code and Executive Order G—45—5; IT IS ORDERED AND RESOLVED: That the installation of the RE—2 Aneroid System manufactured by Righetti Enterprises, 1627 E. Channel Street, Stockton, California, 95205, has been found not to reduce the effectiveness of required motor vehicle pollution control devices and, therefore, is exempt from the prohibitions of Section 27156 of the Velicle Code for all 855 cubic inch displacement Cummins turbocharged heavy—Suty diesel engines equipped with a Cummins PTG non—Air Fuel Control (AFC) style fuel pump. This Executive Order is valid provided that installaticz: instructions for this device will not recommend tuning the vehicle to s fications different from those submitted by the vehicle manufacturer. Changes made to the design or operating conditions of ths device, as exempted by the Air Resources Board, that adversely affect the performance of a vehicle‘s pollution control system shall invalidate this Executive Order. No claim of any kind, such as "Approved by Air Resources Board" may be made with respect to the action taken herein in any advertising or other oral or written communication. Marketing of this device using an identification other than that shown in this Executive Order does not constitute any opinion as to the effect that the use of this device may have on any warranty either expressed or implied. by the vehicle manufacturer. ~ THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATIO®, ACCREDITATION, APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE AIR RESOURCES BOARD OF ANY CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED BENEFITS OF RICHETTI ENTERPRISES‘ RE—2 ANEROID SYSTEM. Section 17500 of the Business and Professions Code makes untrue or misleading advertising unlawful, and Section 17534 makes violation punishable as a misdemeanor.

RIGHETTI ENTERPRISES EXECUTIVE ORDER D—263—1 RE—2 ANEROID SYSTEM (Page 2 of 2) Section 43644 of the Health and Safety Code provides as follows: "43644. (a) No person shall install, sell, offer for sale, or advertise, or except in an application to the state board for certification of a device, represent, any device as a motor vehicle pollution control device for use on any used motor vehicle unless that device has been certified by the state board. No person shall sell, offer for sale, advertise, or represent any motor vehicle pollution control device as a certified device which, in fact, is not a certified device. Any violation of this subdivision is a misdemeanor." Any apparent violation of the conditions of this Executive Order will be submitted to the Attorney General of California for suck action as he deenms advisable. id Executed at El Monte, California, this é% 9. day of January, 1993. C R. B/ Summerfield Assistant Division Chief Mobile Source Division

State of California AIR RESOURCES BOARD EVALUATION OF RIGHETTI ENTERPRISES‘ RE—2 ANEROID SYSTEM FOR EXEMPTION FROM THE PROHIBITIONS OF VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE CALIFORNIA CODE OF REGULATIONS January 1993

State of California AIR RESOURCES BOARD EVALUATION OF RIGHETTI ENTERPRISES‘ RE—2 ANEROID SYSTEM FOR EXEMPTION FROM THE PROHIBITIONS OF VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE CALIFORNIA CODE OF REGULATIONS by Mobile Source Division State of California Air Resources Board 9528 Telstar Avenue EL Monte, CA 91731—2990 (This report has been reviewed by the staff of the California Air Resources Board and approved for publication. Approval does not signify that the contents necessarily reflect the.views and policies of the Air Resources Board, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.)

SUMMARY Righetti Enterprises, of 1627 East Channel Street, Stockton, California, 95205 has applied for an exemption from the prohibitions in Section 27156 of the California Vehicle Code (VC) for their RE—2 Aneroid System. The RE~—2 Aneroid System is designed for installation on all 855 cubic inch displacement heavy—duty turbocharged Cummins diesel engines equipped with a Cummins PTG non—Air Fuel Control (AFC) style fuel pump. Righetti Enterprises has submitted a completed application and all the required information. Based on an engineering evaluation of the application materials, it was determined that the RE—2 Aneroid System does not have any adverse effects on emissions. The staff recommends that Righetti Enterprises be granted exemption as requested and that Executive Order D—263—1 be issued for the RE—2 Aneroid System.

TABLE OF CONTENTS Number SUMMARY i CONTENTS ii I. INTRODUCTION II. CONCLUSION III. RECOMMENDATION IV. DEVICE DESCRIPTION v. RE—2 ANEROID SYSTEM EVALUATION AND DISCUSSION APPENDIX APPENDIX A: INSTALLATION INSTRUCTIONS APPENDIX B: DRAWINGS i1

EVALUATION OF RIGHETTL ENTERPRISES‘ RE—2 ANEROID SYSTEM FOR EXEMPTION FROM THE PROHIBITIONS OF VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE CALIFORNIA CODE OF REGULATIONS I. INTRODUCTION Righetti Enterprises, of 1627 East Channel Street, Stockton, California, 95205 has applied for an exemption from the prohibitions in Section 27156 of the California Vehicle Code (VC) for their RE—2 Aneroid System. The RE—2 Aneroid System is designed for installation on all 855 cubic inch displacement heavy—duty turbocharged Cummins diesel engines equipped with a Cummins PTG non— AFC style fuel pump. Righetti Enterprises has submitted a completed application and all the required information. II. CONCLUSION Based on an engineering evaluation of the operating principles of the Righetti‘Enterprises' RE—2 Aneroid System, the staff concludes that the installation of the Righetti Enterprises‘ RE—2 Aneroid System will not adversely affect exhaust emissions from vehicles for which an exemption is requested. III. RECOMMENDATION The staff recommends that Righetti Enterprises be granted exemption as requested and that Executive Order D—263—1 be issued for the RE—2 Aneroid System. IV. DEVICE_DESCRIPTION The RE—2 Aneroid System decreases fuel flow to the engine during low intake manifold air pressure conditions such as rapid throttle opening. The device may be installed on all 855 cubic inch displacement Cummins turbocharged engine equipped with Cummins PTG non—AFC style fuel pump. The RE—2 is similar

to the Cummins optional aneroid which is no longer available and the Righetti Enterprises‘ RE—1 Aneroid exempted under Executive Order (EO) D—263. The RE~2 is a 6061 T6 billet aluminum valve body with three drilled passages (see drawings in Appendix B). Four hose connections are provided with the device. The fuel is plumbed from the outlet of the existing fuel pump to the inlet of the aneroid fuel passage. The aneroid fuel passage outlet is routed to the injectors. The aneroid leak—off line connects the plunger passage with the existing fuel tank return lines. The air signal line connects the aneroid cover with the intake manifold. v. RE—2 ANEROID SYSTEM EVALUATION AND DISCUSSION Upon initiation of rapid acceleration, the turbocharger cannot increase the intake manifold pressure to supply sufficient air for the proper air/fuel mixture. The resulting rich mixture causes emission of thick smoke. During periods of low manifold pressures, such as during rapid acceleration, the aneroid reduces the fuel charge to each cylinder by restricting the fuel flow rate — lowering the fuel rail pressure. As the turbocharger increases the intaké manifold pressure, the fuel flow rate increases to rated pump calibration volume and pressure. According to the manufacturer, the system, if properly adjusted, reduces the smoke opacity while not affecting performance. Previously, a snap—idle test procedure was conducted to evaluate the emissions impact of the RE—1 Aneroid System. The RE—2 Aneroid System performs an identical function utilizing a different, equally effective, mechanical arrangement. Therefore, the emissions effects resulting from use of the RE—2 would be similar to the RE—1; i.e. no adverse effect on emissions.

APPENDIX

APPENDIX A:

R&_L 8 H.E.T TJj E N _T E R POR I §E S 1627 E. CHANNEL S8T., STOCKTON, CA._ 95205 PH. (209) 4464—8306 FAX (209) 474—473 TNS TALLATION AND DPERATING INSTRUETIONS RIG@HETTI ENTERPRISES RE—2 ANEROID SYSTEM Intended Application Any Cummins turbocharged NT series engine equipped with a ptg fuel pump not already outfzttad with an air fuel control device ({(AFC) or aneroid system. Intended Operation The Righetti RE—Z aneroid system is intended to reduce fuel pump delivery to the engine (and thus reduce exhaust smoke) during low air intake manifold pressure conditions, ie onset of throttle application. Theory of. Operation During the initiation of acceleration of a diesel engine, turbocharger lag deprives the engine of sufficient air to allow clean combustion of all of the fuel delivered to the cylinders. The anercid system (modulating system) reduces fuel delivery to the engine as a function of manifold air pressure, allowing a controlled delivery of fuel to the engine, minimizing formation of exhaust smoke. As exhaust energy increases, accelerating turbocharger wheel speed, manifold air pressure rises. The Righetti RE—Z2 aneroid system tracks the rising manifold pressure and allows an increasing fuel rate to be delivered to the engine, up to the full delivery of the fuel pump at about 7—10 psig depending on engine CPL and fuel pump calibration cade. In simplest terms, the Righstti RE—Z2 Aneroid system only effects the formation of smoke during periods of acceleration accompanied by low manifold pressure. Formation of exhaust smoke at intake manifold pressures above 7—10 psig are strictly a function of engine configquration and condition. Installation (Ref Righetti Enterprises Drawing RE—2—1) Mount the RE—2Z aneroid via the included mounting bracket on the side of the engine approximately 12" behind the fuel pump. The NT series engine has several 1/2" NF thread hbhosses which will accommodate this mounting configuration.

Discomnect and remove the existing fuel pump delivery line which runs from the fuel pump shut—off valve to the cylinder head fuel inlet port. Flumb the fuel pump shut—off valve delivery port (57/16" inverted flair)} to the aneroid inlet (also 5/16" inverted flair) port as indicated. 5/16" ID tubing or #8 Stratoflex line minimum is required. > Plumb the Anersid discharge port (37/16" inverted flairl to the cylinder head fuel inmlet pnrt (also 9716" inverted flair). Plumbt the air signal lime form the engine intake manifoeld to the aneroid air sensing port as indicated. The intake manifold is equipped with a 1/8" fpt conmection as is the aneroid air sensing port. Use minimum Stratoflex #4 or equivalent. Plumb the aneroid leak—off port to the fuel return system as indicated. Stratoflex size #4 minimum or equivalent is required . Start the engine and allow a warm up perioed,. Note: air which entered the fuel system plumbing during installation will cause hard starmrting. The fuel system may have to be purged before starting the engine. After the engine starts, and idles, cycle the throttle to make sure all air is purged from the fusel system. Next, perform a snap idie test. (Three snaps for clean~out, then record three). It is recommended that an opacity meter whith meets the requirements of SAE 1243 be used to conduct this test. Currently, S59% opacity is the legal limit for class 8 commercial rigs manufactured prior to 1991. We are advised that consideration is currently being given to lower this level in the near future. For this reason, we suggest that sdjustmemt to 35% to 38% should be considered. It has been our experience that unless something is wrong with the engine,> 35% to 38% opacity should still alilow reasonably good acceleration. Adjustment of the valve to compliment the exact engine configuraticn may be achieved by manipulation of the "no— air" screw on the side of the aneroid valve body, Loosen the 7/16" jam nmnut, and back the adjusting screw out for more fuel. Adjust the screw in for less fuel. Adjustments of 1/4 turmn can make significamt changes in the exhaust cpacity. When close to the desired opacity level, adjustments of 1/8 turn will suffice. When final adjustment is reached, lock the jam nut (be careful that the adjusting screw is held

w/5 °r steady whils locking) and seal the mno air screw location with the name tag provided with the vaive. When complete, check the installation to make sure all of the lines are secure and not leaking. Also make sure the lines and valve have been located carefully so as to not sbstruct throttle linkage movement.

APPENDIX B:

t INTAKE MANMIFCLD OR AFTERCCGOLER ASSY, ho CBHE::::::&'\ * — FUEL T70 INJECTORS l — 8 . H AIR SIGNAL LINE i4 AERDOLIP — TT mm m s ze ASHED LINES INDICATE PLUMEING BY CUSTOMER ‘ Y, 1 1t Ile _ 1t s H ‘ | Eo 2 E_)(IST[NG FUEL RETURK LTNE H H /lj/ 7 FUEL TD ANERDID it #6 AERDGUIP LINE ” mm mm =myz=o—— ol t _/?' RE—Z2 ANEROID 11 oC "g age [ 2. ,‘4‘ L2 cnvl in/ ABJUSTMENT tC Z"’ ANERCED \ LEAK—BFF LINE . #4 AEROAUIP EXISTENG PLMP SUC1.IN FUEL TPNK _RIGHETTI ENTERPRISES RE—2 ANERDOID SYSTEM ichett: enterpersee BTE REv. bescrerPtion 1627 E CHANNEL 5T b48—22 INSTALLSTION DETAILS STOCKTON CA. 95205 2P 464—erue _ To ~ teerter—érbe>


Document Created: 2005-09-01 12:41:01
Document Modified: 2005-09-01 12:41:01

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