Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on July 22, 1992.
As of Monday, January 20th, 2025 this Executive Order has not been overturned or superceeded.

Approved Parts

Models
1974 and older model-year Cummins turbocharged heavy-duty diesel engines equipped with a PTG fuel pump

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-263
  • Executive Order 263 / D263
  • ARB # D-263
  • Executive Order No: D-263
  • C.A.R.B. No. D-263
  • Resolution D-263
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 PDF

D-263 Document:

CARB_D-263

(Page 1 of 2) State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—263 Relating to Exemptions Under Section 27156 of the Vehicle Code RIGHETTI ENTERPRISES RE—1 ANEROID SYSTEM Pursuant to the authority vested in the Air Resources Board 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; TT IS ORDERED AND RESOLVED: That the installation of the RE—1 Aneroid System manufactured by Righetti Enterprises, 1627 E. Channel Strset, 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 Vehicle Code for 1974 and older model—year Cummins turbocharged heavy—duty diesel engines equipped with a PTG fuel pump. This Executive Order is valid provided that installation instructions for this device will not recommend tuning the vehicle to specifications different from those submitted by the vehicle manufacturer. Changes made to the design or operating conditions of the 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 CERTIFICATION, 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 ALLECGED BENEFITS OF RIGHETTI ENTERPRISES‘ RE—1 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 RE~1 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 such action as he deems advisable. J Executed at El Monte, California, this‘z;z”fiay of July, 1992. . AZ~ /,%5}'%449’/”%(@74’\ 3 R. B. Summerfield / } Assistant Division Chief Mobile Source Division

State of California AIR RESOURCES BOARD EVALUATION OF RIGHETTI ENTERPRISES‘S RE—1 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 July 1992

State of California AIR RESOURCES BOARD EVALUATION OF RIGHETTI ENTERPRISES‘S RE—1 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—1 Aneroid System. The RE—1 Aneroid System is designed for installation on all 1974 and older model—year heavy—duty turbocharged Cummins diesel engines equipped with a PTG fuel pump. Righetti Enterprises has submitted a complete application and all the required information including a video tape demonstrating the device and the "snap—idle" test results. Based on an engineering evaluation of the test data and application materials, it was determined that the RE—1 Aneroid System does not have any significant adverse effects on emissions. The staff recommends that Righetti Enterprises be granted exemption as requested and that Executive Order D—263 be issued for the RE—1 Aneroid System.

_CONTENTS Page Number SUMMARY i coxtents ii t. INTRODUCTION 1 II. concLuston 1 III. RECOMMENDATION 1 iv. DEVICE DESCRIPTION 2 v. RE—1 ANEROID SYSTEM EVALUATION AND DISCUSSION 3 APPENDIX 5 APPENDIX A: INSTALLATION INSTRUCTIONS A—1 APPENDIX B: DRAWINGS A—2 ii

EVALUATION OF RIGHETTI ENTERPRISES‘S RE—1 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~1 Aneroid System. The RE—1 Aneroid System is designed for installation on all 1974 and older model—year heavy—duty turbocharged Cummins diesel engines equipped with a PTG fuel pump. Righetti Enterprises has submitted a complete application and all the required information including a video tape demonstrating the device and the "snap—idle" test. II. CoNCLUSTONS Based on an engineering evaluation of the operating principles and "snap—idle" test data of the Righetti Enterprises RE—1 Aneroid System, the staff concludes that the installation of the Righetti Enterprises RE—1 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 be issued for the RE~1 Aneroid System.

IV. DEVICE DESCRIPTION The RE—1 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 any 1974 and older model—year Cummins turbocharged engine equipped with PTG fuel pump not already equipped with an Air Fuel Control (AFC) or aneroid system. The RE—1 is similar to the Cummins optional aneroid which is no longer available. The RE—1 is a 6061 T6 billet aluminum vaive body with two drilled passages (see drawings in Appendix B). Four hose connections are provided with the device. The fuel bypass is plumbed from the pressure side of the existing fuel pump to the inlet of the aneroid fuel bypass passage. The aneroid fuel bypass passage outlet is connected to the existing pump suction fitting on the fuel pump. 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. 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 lowering the fuel rail pressure. As the turbocharger increases the intake manifold pressure, the fuel pressure 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.

RE—1 ANEROID SYSTEM EVALUATION AND DISCUSSION A snap—idle test procedure was conducted to evaluate the emissions impact of the RE—1 Aneroid System. The emissions requlation for applicable vehicles is not to emit smoke with an opacity greater than 55 percent. Snap—idle testing was performed in accordance with California Code of Regulations (CCR) section 2182 et sq. by ARB North Heavy—Duty Diesel Section on a 1972 model—year Cummins 855 CID heavy—duty diesel engine, model number NTC 350. Two tests were run back—to—back; the first with the aneroid disabled, the second with the aneroid enabled and adjusted to optimum level. Results are as follows: With Aneroid Disabled Run Number Percent Opacity 1 100 2 100 3 100 4 100 5 100 6 100 With Aneroid Enabled Run Number Percent Opacity 1 40 2 40 3 43 4 44 5 45 6 45 7 53

The test results show the aneroid system‘s ability to control the smoke opacity within the prescribed level. With the aneroid disabled, the engine emitted 100 percent opacity smoke. The aneroid was enabled and adjusted to reduce smoke opacity without a significant loss of throttle response. The test results and the video tape of the test demonstrate the aneroid‘s ability to meet emission standards and, therefore, the aneroid will not have a negative impact on the vehicle‘s emissions.

APPENDIX

APPENDIX A:



APPENDIX B:

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Document Created: 2005-09-01 12:42:17
Document Modified: 2005-09-01 12:42:17

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