Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on October 29, 1974.
As of Tuesday, February 4th, 2025 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
74B1974 and older model year vehicles equipped with a standard kettering type ignition system with negative ground

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-43
  • Executive Order 43 / D43
  • ARB # D-43
  • Executive Order No: D-43
  • C.A.R.B. No. D-43
  • Resolution D-43
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-43 PDF

D-43 Document:

CARB_D-43

State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—43 Relating to Exemptions under Section 27156 _ of the Nehicle Code JUDSON RESEARCH AND MFG. CQ. "JUDSON ELECTRONIC MAGNETO MODEL 74B" 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 Section 39023 of the Health and Safety Code; IT IS ORDERED AND RESOLVED: That the installation of the Judson Electronic Magneto Model 74 B device manufactured by Judson Research and Manufacturing Company of 541 East Hector Street, Conshohocken, Pennsylvania 19428 has been found to not reduce the effectiveness of required motor vehicle polliution control devices and, therefore, is exempt from the prohibitions of Section 27156 of the Vehiclie Code for 1974 and older model—year vehicles equipped with a standard Kettering—type ignition system and wi‘th negative ground. The "Judson Electronic Magneto Mode1‘74B is an ignition coil with a Zener —diode. The coil is encapsulated in a plastic mold and includes two electronic devices attached to the outside with one inoperative. This Executive Order is valid provided that installation instructions for—this device will not recommend tuning the vehicle to specifications different than those listed by the vehicle manufacturer. Changes made to the design or operating conditions of the device as originally submitted to the Air Resources Board for evaluation that adversely affect the performance of the vehicle‘s pollution control devices shall invalidate this Executive Order. Marketing of this device using an identification other than that shown in this Executive Order or marketing of this device for an application other than those listed in this Executive Order shall be prohibited unless prior approval is obtained from the— Air Resources Board. . This Executive Order do*s 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.

"JUDSON ELECTRONIC MAGNETO MODEL 748" EXECUTIVE ORDER D—43 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 ALLEGED BENEFITS OF THE JUDSON ELECTRONIC MAGNETO MODEL 74B DEVICE. 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. Section 17500 of the Business and Professions Code makes unlawful, untrue or misleading advertising, and Section 17534 makes violation punishable as a misdemeanor. Sections 39130 and 39184 of the Health and Safety Code provide as follows: "39130. No person shall install, sell, offer for sale, or advertise, or, except in an application to the board for certification of a device, represent, any device as a motor vehicle pollution control device unless that device has been certified by the board. No person shall sell, offer for sale, advertise, or represent any motor vehicle poliution control device as a certified device which, in fact, is not a certified device. Any violation of this section is . a misdemeanor." "39184. (a) No person shall install, sell, offer for sale, or adver— tise, or, except in an application to the board for accreditation 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 accredited by the board. No person shall sell, offer for sale, adver— tise, or represent any motor vehicle pollution control device as an accredited device which, in fact, is not an accredited device. Any violation of this subdivision is a misdemeanor." Any apparent violation .of the conditions of this Executive Order will be sub~ mét?edb%o the Attorney General of California for such action as he deems advisable. Executed at Sacramento, California, this éggzigé day of October, 1974. WILLIAM SIMMONS Executive Officer

State of California AIR RESOURCES BOARD October 28, 1974 Staff Report . Evaluation of the Judson Research and Manufacturing Company‘s "Judson Electronic Magneto Model No. 74B" For Exemption from the Prohibitions of Section 27156 of the California Motor Vehicle Code 1. Introduction Judson Research and Manufacturing Company of 541 East Hector Street, _ Conshohocken, Pennsylvania 19428 has applied for an exemption from ‘the prohibitions of Section 27156 of the California Motor Vehicle Code for the "Judson Electronic Magneto Model No. 748B". Section 27156 prohibits the sale, advertising, or installation of.ahy devicé or mechanism which reduces the effecttveness of the required motor vehicle emissions control system. The applicant is requesting the exemptfon be granted for all 1974 and older model vehicles equipped with a standard Kettering type ignition system consisting of an fgnition coil, breaker points condenser and powered by a battery with a negative ground. The system is not applicable to non—Kettering systems such as capacitive discharge, breakerless, or transistorized. I1. Device Description and Function— The "Judson Electroric Magneto Model No. 748B" consists of a specially wound coil (#EM 204) and a Zener diode (10 watts, 140 volts) connected

2 a % Evaluation of the Judson Research and Manu— facturing Company‘s "Judson Electronic Magneto Model No. 748B" for Exemption from the Prohibitions of Section 27156 of the California Motor Vehicle Code October 28, 1974 between the common connection of the primary and secondary windings and ground. The coil replaces thg OEM coil which is removed. Cofl and diode are in one case and are potted and sealed with gaskets. The Judson coil is to be mounted in the same poisition as the OEM coil if possible, if not, then on the firewall or fender as close to the distributor as possible. The circuit diagram and installation instructions are contained in Exhibit I and II respectively. The Judson device functions exactly the same as the standard Kettering system with the addition of the Zéner diode in the primary—secondary coil junction. According to the manufacturer, the diode‘s function is to limit the reverse EMF generated by the collapsing field in the primary Winding to 140 volts to improve point life by reducing arcHing during opening. This control of the primary circuit is claimed to extend the duration of the spark; as a result of this action, improved fuel combustion leading to increased mileage is claimed. III. Device Evaluation The manufacturer has submitted emission data performed on a 1974 Chev— rolet Caprice using the Federal CVS—1 (1972) hot start test procedure. Tfle vehicle was tested in an "as received" condition from the rental agency. Back to back tests were performed, first in the "as received" _ condition and the second with the Judson device installed by dJudson personnel. The results of these test were inconclusive. po

Evaluation of the Judson Research and Manu— facturing Company‘s "Judson Electronic Magneto Model No. 748B" for Exemption from the Prohibitions — of Section 27156 of the California Motor Vehicle Code October 28, 1974 The Scott data did not include specific information on vehicle operating specifications, maintenance, or whether the Judson Electronic Magneto was the Model 748 and was installed according to the instructions in Exhibit I. A copy of the test by Scott Environmental Technology, Inc. for Judson Reserach & Manufacturing is designated as Exhibit III. In order to confirm the electrical output characteristics of the ignition system the test vehicle‘s electrical system parameters were com— pared with and without the Judson coil installed. The test vehicle had the following specifications: Make and Model Year 1974 American Motors Ambassador Station Wagon Engine — 360 Cubic Inch Displacement Cgrburétor Two Barrel Transmission Automatic Emission Control AIR/EGR/ EM License Number E833603 Centrifugal Spark Advance in Crankshaft Degrees RPM Standard Ignition Jdudson Electronic Magnets Model No. 748B > Device #1 . Device #2 Idle 0 0 0 1000 5 5 5 1500 12.5 12.5 12.5 2000 16 & 16 ' 16 2500 18 18 18 3000 A e ‘ 21 21

Evaluation of the Judson Research and Manu— facturing Company‘s "Judson Electronic Magneto Model No. 74B" for Exemption from the Prohibitions of Section 27156 of the California Motor Vehicle Code .October 28, 1974 Spark Duration — Microseconds RPM Standard Ignition Judson Electronic Magneto #74B \ — Device #1 Device #2 Idle 1400 1400 . 1400 1200 > 1320 1320 1320 2000 1180 1180 118C Available Secondary Voltage RMm Standard Ignition — Judson Electronic Magneto Model No. 74B ~ Pevice #1 Device #2 Idle 20 KV to t 20 KY . 20 K¥ 1200 26 KY 25 KV 25 KV 2200 23 kV 2s k _ 23 ky Idle Exhaust Emissions Standard Ignition Judson Electronic Magneto Model No. 748 HC, ppm C0, % HC, ppm CO, % 110 0.7 ' 110 0.7 Prior to testing, the vehicle‘s carburetor and ignition settings were ajusted to OEM specifications. The test consisted of measureing the spark advance, spark duration, avéfi]ab]e secondary voltage and idle HC and CO emissions. In addition, the primary pattern of the ignition system was observed to determine if there was any change in the waveform from the substitution of the Judson coil for the OEM coil. No change was observed in the primary pattern with the Judson coil.

Evaluation of the Judson Research and Manu— facturing Company‘s "Judson Electronic Magneto Model No. 748B" for Exemption from the Prohibitions of Section 27156 of the California Motor Vehicle Code October 28, 1974 Table 1 shows the results of the test. The installation of the device, when compared to the OEM coil, did not significantly change the output characteristic of the OEM ignition system. IV. Conclusion and Recommendation . Based on the ARB test results, the installation of the "Judson Electronic Magneto Model No.A74B" would not adversely affect the per— formance or operation of the OEM emission control system. The staff recommends that Judson Research and Manufacturing Company be issued an exemption from the prohibitions of Section 27156 of the Vehicle Code for its "Judson Electronic Magneto Model No. 748" for the following vehiclies: All 1974 model—year vehicles equipped with a standard Kettering—type ignition system with negative ground.

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a INSTALL ELECTRONIC MAGNETO AS FOLLOWS AND AS ILLUSTRATED ON INSTALLATION PROCEDURE FOR 12 VOLT EUROPEAN, JAPANES D FOLLOW— FRONT COVER ON ALL AUTOMOBILES MANUFACTURED BY GENERAL MOTORS, ING AMERICAN VEHICLES WHICH DO NOT HAVE A RESISTOR OR RESISTANCE FORD MOTOR CQ., CHRYSLER, AND AMERICAN MOTORS. —IN THE LINE FROM THE IGNITION SWiTCH TO THE COIL: CHECKER, HUDSON, 1 — Remove original ignition coil. WILLYS, RAMBLER (6 cylinder), STUDEBAKER (prior to 1952) SOME CHRYSLER PRODUCTS MANUFACTURED PRIOR TO 1960 AND MANY MARINE ENGINES. 2 — Mount Judson Electronic Magneto in same place as original coil was mounted. If this is not possible, install electronic magneto on In making the installation on the above engines it is necessary to install a ballast resistor firewall or fender well as close to ignition distributor as possible. in—the line connecting the ignition switch to the terminal on the Electronic Magneto marked "BAT". Use Delco baltast resistor No, D1110 which can be purchased at any General 3 —— Insert high tension cable from center of ignition distributor to Motors dealer or automotive supply store (1.3 ohms). socket of electronic magneto using brass contacts on both ends of wire. Make sure cable is fully inseried and making contact on both ends. 4 —— Connect point wire from distributor to terminal on electronic magneto marked "DIST", If wire is too shor', extend it with primary wire and sleeve connector by removing %&" insulation from both wires and 0 inserting into sleeve. Sleeve is then compressed or crimped with pliers tentTion O and wrapped with msulanon tape. switce BALLAST RESISTOR 5 —— Connect battery wire from switch originally fastened at coil to terminal on electronic magneto marked "BAT". If too short extend as previously instructed (there may be two wires on this one terminal). 6 —— Connect short piece of primary wire from side of electronic magneto to engine. If possible, make this ground connection from electronic magneto to one of the screws holding the vacuum advance mechanism to the ignition distributor. HIGH TENSION 7 — SET SPARK—PLUG —GAP TO ENGINE MANUFACTURER‘s LINE SPECIFICATIONS. TO GROUND TO POINTS INSTALLATION S COMPLETE NOTE: The Judson Electronic Magneto produces a higher pressure arc than does the Ballast resistar can be fastened to the Electronic Magneto mounting plate with one of standard ignition system. Because of this the high tension wire if old, faulty or weak, the mounting screws. Ballast resistors become very hot in operation and should be clear of will break down with our system. This gives the impression of magneto fallure but is is wires and hoses. in the event that the required balfast resistor is not readily available the high tension.wire that is breaking down resulting in faulty ignition. In other words, tacally, it can be ordered from Judson Research and Mfg. Co. at a price of $2.00 postpaid, the high tension wire is marginal and although it will function with the coil, it breaks Late models of the Mercedes, BMW, Toyota, Volvo, Fiat, and Porsche 911 have a ballast down with our system because of the increased current. With some high tension resistance resistor in the circuit and in making the installation on these vehicles, the original balfast "wire" (carbon granules} this happens gradually and gives the impression of magneto resistor should be removed and replaced with our recommended resistor. failure. The car will stall, is difficult to start and misses. if car is two. years or more ald and equipped with radio resistance type spark plug DO NOT INSTALL A BALLAST RESISTOR ON ANY 6 VOLT SYSTEM. wire, it should be replaced. BRITISH VEHICLES ~ IMPORTANT All Lucas ignition systems as used on British cars up to the 1967 models require a If the Judson Electronic Magneto is being used to replace an ardinary transistorized positive ground Electronic Magneto and a baffast resistor must be installed on all 12 volt ignition system, the original ballast or resistance wire must be replaced or reconnected. British systems, Late model British vehicles use the standard negative ground system and it is necessary to install a ballast resistor.

TEST PROCEDURE TO DETERMINE IF BALLAST RESISTOR IS REQUIRED IN CHRCUIT With the Electronic Magnato installed and the engine running at idle, a volt meter con— nected from the "BAT" terminal on the Electronic Magneto to the side of the aluminum Installation Instructions case should show a reading of less than 11 volts. If the valt meter shows 12 or more volts, a ballast resistor is required in the circuit. JUD SON TACHOMETER if vehicle is equipped with an electric or electronic tachometer it is connected to the ELECTRONIC MAGNETO same terminal on the Electronic Magneto as it was on the original coil. No adjustments are required. The Judson Electronic Magnéto will pulse or operate all electric and electronic or pulse type tachometers that are operated by a standard coil. TO DiIST. (points) TEST EQUIPMENT Standard ignition test equipment including a strobe light for timing and a cam dwell indicator for point setting can be used with this system. The normal connections and BATTERY WIRE FROM IGNITION test procedures are followed. This system does not, however, produce a normal pattern SWITCH on an ignition scope. The primary pattern of the Judson Electronic Magneto will show a square wave on the scope as against an oscillating spike for a standard coil, The Judson Electronic Magneto can only be evaluated in operation on the engine as an integral part of the entire ignition system. RADIO INTERFERENCE The Electronic Magneto should not he mounted in close proximity to the radio antenna and radio resistance wire should be used in the hi—tension circuit. GROUND HI—TENSION LEAD CONNECTION TO DiST. CAP Same unit is used on both 6 volt and12 valt systems. Installation procedure is exactly THREE YEAR WARRANTY the same for both negative ground and positive ground systems. The difference is in the The Judson Electronic Magneto is warranted against magneta itself, not its connection. Do not install a standard negative ground unit on an failure for a period of three years. In the event of failure, engine having a positive ground. Units for positive ground systems as required on British within this period, we will either rebuild or replace the engines and some American engines manufactured prior to 1956 are stamped on the front defective unit under warranty on a no charge basis. This "positive ground", warranty does not cover postage and handling and a BEFORE INSTALLING THE ELECTRONIC MAGNETO, WE RECOMMEND THAT service charge of $3.50 will be made to cover these costs. THE BREAKER POINTS IN THE IGNITION DiSTRIBUTOR BE EXAMINED AND Service work is to be done only at the factory or by our REPLACED IF WORN OR PITTED. ADJUST THE POINT CLEARANCE TO MANU— authorized agents. This warranty is in liew of all other FACTURER‘S SPECIFICATIONS USING A CAM DWELL INDICATOR. THE IGNITION warranties and does not cover equipment which has been TIMING SHOULD ALSO BE SET TO MANUFACTURER‘S SPECIFICATIONS. SPARK altered modified, abused or damaged in an accident. PLUGS SHOULD BE EXAMINED AND MUST BE REPLACED IF WORN OR COR— oeteannpeunationtu;mry.mum sonmmosmenant RODED. SET SPARK—PLUG GAP TO . ENGINE MANUFACTURER‘S SPECIFICATIONS. Do not remove the condensor from the ignition Alistributor as our circuit is designed TSHBSDRH researchanmro.co. to use it. CONSHOHOCKEN, PA. 19428

EXHIBIT III 1469 O1 0974 Technical Report on Exhaust Emission Tests (Judson Research Vehicle) Prepared for: Judson Research & Manufacturing Conshohocken, Penna. by Scott Environmental Technology, Inc.

SET 1469 Ol1 0974 1.0 INTRODUCTION On September 18, 1974 Scott Environmental Technology, Inc. performed a series of exhaust emission test on a vehicle provided by the Judson Research and Manufacturing Company,. The vehicle, test procedures, and results are described. below. 2.0 TEST VEHICLE The test vehicle was a 1974 Chevrolet Caprice (VIN IN39R4T105575) having a V—8 350 CID Engine and automatic transmission,. The vehicle, as reported by the sponsor, was a rental automobile equipped as provided by tfie manufacturer. . 3.0 TEST PROCEDURE The testihg was done in accordance with Federal Register Volume 35, Number 219, except that no twelve hour cold soak period preceeded any of the tests. The test serfies provided two hot start CVS—1 exhaust emission tests. The first test was performed as a base line with the vehicle reported as received from the rental agent,. The second was with an ignition syétem described as the Judson Electronic Magneto, manufactured and installed . t by y th the sponsor‘s . . personmnel+, q ryseguyENPAPION Instrumentation employed during'the test included a Scott Model 301 constant volume sampler, a Beckman 0—3000 ppm carbon monoxide analyzer (NDIR), a Beckman O—4% carbon dioxide analyzer, a Beckman total hydrocarbon analyzer (FID) and a Teco chemilumenescence analyzer for oxides of nitrogen. 5.0° SUMMARY OF RESULTS . Exhaust emissions for egch of the CVS—1 hot start tests along with vehicle parameters are reported on the calculation sheets provided as tables 1 and 2. Final results were: Sponsor EC CO NOX CO2 Fuel Economy Test # Unit # (g/mi) (g/mi) (g/mi) % (MPG) 1. . None 1.66 48 .77 2.59 1.75 C 8.68 745—1G 1.42 43 .69 2,19 1.73 9.71 * g/mi ; grams per mile $| scoTr RESEARCH LABORATORIES, INC.

sCOTT RESEARCH LABORATORIES INC. A § U B $ 1 D | A R v o r AME R 1 CAN B i 0C uL t U RoE, 1N c. PLUMSTEADVILLE, pa. 18949 PHONE: 215.750.851 TwX 5106559344 Table 1 ‘ 72 EPA Hot Start EXHAUST EMISSION DATA SHEET Vehicle Chevrolet Caprice Odometer _ Date 18 Sept 74 License 23—F—326 PA Finish 6741.8 Project 1469—01 Trans. Automatic . Start 6734 .4 Run 1 Carb. — bbis. 2 Miles 7.4 _ PDBevice None Engine __V_-S__ CID .__i._ Byn. Load 14.7 Rhp @ 50 mph Idle rpm — BIT __= Dyn. Inertia 5000# Analyst Robert C. Morris DPriver Robert C. Morris calculator Robert C. Morris .Dry Bulb Temp., F 77 ° Barometric Press., mm Hg 746.4 Wet Bulb Temp., F 69 CVS Pump Press., mm Hg ~12.72 Gr. Water/Lb. Dry Air 98 (P) Sample Press., mm Hg 733.98 (K) Factor 1.098 (V) CVS Pump Disp., CFR »3232 (T) Sample Temp., R 379.—7 (N) CVS Pump Revolutions 24775 DILUTE EXHAUST MEASUREMENTS COMPONENT PuN/T FACTOR CRAMS /MILE . ppm HC dil. 119.66 . ppm jIC air 11.09 ppm 4C exh. 108.6 10138.31 1.513 x 1078 1266 _ kc ppm CO exh. 1575 * 3.054 x 10~° 48 .77 co . —ppm NO — ppm NO2 — ppm Nox 46.53 2.59 NOx at 5.017 x 10.;5 o (ppm Nox) (¥) 51.09 1.75% 8.68 mpg PLUMSTEADVILLE. PA. 6 SAN BERMARDINO. CALIF. + MADISON HGIGHTS, MiCH.

SsCOTT RESEARCH LABORATORIES INXC. & § u B § 1 b l a ROY O FoAa MoE Rol C A N OB 1 O C U L T uU B E0.s io Noco Prioneaisyessser000000 Table 2 72 EPA Hot Start EXHAUST EMISSION DATA SHEET CVIN IN39R 4T105575) Unit # 745—1G Vehicle Chevrolet Caprice Odometer Date 18 Sept. 1974 License 23F 326 Finish 6753.2 Project 1469—01 Trans. Auto Start 6745.8 Run 2 ' Carb. bbis. 2 Miles 7.4 Device Ignition . Engine v—8 CID 350 Byn. Load 14.7 rhp 9 50 mph Idle rpm BIT ~ DByn. Inertia 5000# Analyst Robert C. Morris Driver Robert Morris caiculator Robert C. Morris . y Bulb Temp., F 78 Barometric Press., mm Hg 746.4 ‘et Bulb Temp., F 70 . CVS Pump Press., mm Hg 12.72° Gr. Water/Lb. Dry Air 98 (P) Sample Press., mm Hg 733.98 > (K) Factor 1.121 (V) CVS Pump Disp., CFR 3232 (T) Sample Temp., R 579.7 (N) CVS Pump Revolutions 24749 DILUTE EXHAUST MEASUREMENTS ComPoNENT PuN/T FAcToR CRAMS/MILE — iapm HC dil. 107.52 ppm HC air 14 .91 ppm HC exh. 92. 61 10127 .7 1.513 x 10"6 1.42 uC ppm CO exh. 1412.5 t 3.054 x 10"6 43.69 co —ppn; NO =— ppm NO2 — ppm NO 38.49 a £ . ‘(ppm NO_) (K) 43.16 5.017 x 10_ 2.19 NO,, . C0, 1.73%> . 9.71 mpg PLUMSTEADVILLE, PA, SAN BERNARDING, CALIF. * MADISON HEIGHTS, MICH


Document Created: 2005-09-01 12:43:46
Document Modified: 2005-09-01 12:43:46

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