Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on April 20, 1978.
As of Saturday, December 28th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
5401974 and older model year vehicles with 6 and 8 cylinder engines with distributors with a concentric breaker plate, EXCEPT: (1) Vehicles originally equipped with transistorized, breakerless, and capacitive discharge ignition system with OE electronic ignition (2) Vehicles with dual point distributors where one of the points is used for emission control (3) 1966-1970 vehicles with NOx retrofit devices

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-70-4
  • Executive Order 70-4 / D70-4
  • ARB # D-70-4
  • Executive Order No: D-70-4
  • C.A.R.B. No. D-70-4
  • Resolution D-70-4
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-70-4 PDF

D-70-4 Document:

CARB_D-70-4

(Page 1 of 2) State of California AIR. RESOURCES~BOARD EXECUTIVE ORDER D—70—4 Relating to Exemptions under Section 27156 of the Vehicle Code MALLORY ELECTRIC COMPANY ~ "UNIMAG" BREAKERLESS IGNITION SYSTEM MODEL 540 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 Sectiofi 39515 of the Health and Safety Code and Executive Order G—30A; IT IS ORDERED AND RESOLVED: That the installation of the "Mallory Unimag Breakerless Ignition System Model 540" manufactured by MaTlory Electric Company, Division of W. R. Grace & Co., 1801 Oregon Street, Carson City, Nevada 89701 has been found to not 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 6 and 8 cylinder vehicles equipped with distributors with a concentric breaker plate except for the following applications: 1. Vehicles originally equipped with transistorized, breakerless, and capacitive discharge ignition systems. 2. Vehicles equipped with dual point distributors where one of the points is used for emission control. 3. .1966—1970 vehicles with NOx retrofit devices with a 4° retard in basic ignition timing (i.e, Carter, Echlin, STP Air Computer, Pure Power—Electro—NOx). This Executive Order is valid provided that installation instructions for this device will not recommend tuning the vehicle to specifications different from those Tisted 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 per— formance of a vehicle‘s pollution control system 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 Tisted in this Executive Order shall be prohibited unless prior approval is obtained from the Air Resources Board. 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.

MALLORY ELECTRIC COMPANY . C EXECUTIVE ORDER D—7d—A (Page 2 of 2) 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 éLLEGED BEEEFITS OF THE "MALLORY UNIMAG BREAKERLESS IGNITION SYSTEM MODEL 40" DEVICE. No claim of any kind, such as ”Abproved by Air Resources Board" may be made with respect to the action taken here1n in any advertising or other oral or written communication. Section 17500 of the Business and Professions Code makes untrue or mis— leading advertising unlawful, and Sect1on 17534 makes violation punishable as a misdemeanor. . 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 poliution 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. Executive Order D—70—2 is hereby rescinded. pravaia Executed at Sacramento, California, this oehi 6&9 299 ns day of April, 1978. omas C. Austin 0 uit Deputy Executive Officer

State of California AIR RESOURCES BOARD April 11, 1978 Staff Report Evaluation of Mallory Electric Co. "Unimag" Model 540 and 550 for Complitance with the Requirements of Section 27156 of the Vehicle Code Introduction On June 28, 1977, the Air Resources Board (ARB) received an application from Mallory Electric Co., a division of W. R. Grace & Co., 1801 Oregon Street, Carson City, NV 89701, requesting an exemption from the prohibitions of Vehicle Code Section 27156 for the "Unimag" Breakerless Ignition System Models 540 and 550 The applicant requested that exemption be granted on Model 540 for 1974 and older 6 and 8 cylinder vehicles (except Chrysler) and Model 550 for 1976 and older 4 cylinder vehicles. The applicant claimed "Unimag" Model 540—and 550 were identical to KV—E300 and E—400 breakerless ignition systems, respectively, which were manufactured by Fairchild Semiconductor. The latter retrofit ignition systems were exempted by the ARB from the prohibitions of Vehicle Code Section 27156 by Executive Orders D~44—=2 and D—44—3.— The ARB thereupon issued Executive Order D—70—2 and D—70—3, dated August 9, 1977; granting "Unimag" Model 540 and 550, respectively, exemptions based on the claim of identical systems. Pursuant to Section 2224 (b) of Title 13, of the California Administrative Code, the ARB conducted surveillance tests on the above exempted "Unimag" Model 540 and 550 devices to deter— mine compliance with the requirements of Section 27156 of the Vehicle Code. This staff report discusses the results of these test evaluations. II. Systems Description — The "Unimag" Model 540 and 550 breakerless ignition systems are designed to replace the breaker points within the distributor. Each kit consists of an amplifier, magnetic pick—up unit, adapter, solderless connectors, feeler gauge and installation instructions. The "Unimag" Model 550 has an additional compensator spring which is slipped over the distributor cam of 4 cylinder distributors. This compensator spring functions as a symmetrical, peaked cam, causing the magnetic sensor to generate the correct wave form, regardless of the original equipment cam profile.

For more detailed descriptions of the two systems, refer to the staff reports "Evaluation of the Fairchild Semiconductor Breakerless Ignition System Model KV—E300", dated October 7, 1975, and "Evaluation of the Fairchild Semiconductor BreakerTess System Model E—400", dated April 16, 1976. III. Systems Evaluation The Air Resources. Board conducted surveillance tests on the "Unimag" Model 540 and Model 550 in accordance with ARB Criteria for After— market Ignition System Modifications adopted November 4, 1977. For tests on the "Unimag" Model 540, the distributors that have non— concentric breaker plates design were selected since any timing change attributable to mechanical modifications would be most pron— ounced on this type of design. The distributors chosen were {1) 1967 Ford 8 cylinder distributor (2) 1970 Chevrolet 6 cylinder distributor, and (3) 1973 Ford 8 cylinder distributor.: Since the: "Unimag" Model 550 is limited to 4 cylinder applications, a 1974 Toyota 4 cylinder distributor was selected. The results of the above tests are summarized in Table I through IV. The ignition test data indicates that the "Unimag" Model 550 meets the ARB criteria for ignition system modifications and "Unimag" Model 540 did not, for the folTowing reasons: {1) The spark energy decreased by more than 50% on the 1967 Ford 8 cylinder distributor and 25% on the 1970 Chevrolet 6 cylinder distributor at cruise conditions. (ARB criteria allows no more than 20% degradation in spark energy). (2) Available secondary voltage with Toad decreased by more than 15% on the 1967 Ford and 1970 Chevrolet distributors (ARB criteria allows no more than +10% secondary voltage variation from the original equipment). (3) The ignition timing decreased by a maximum of 8 crankshaft degrees on the 1967 Ford distributor, and 5 crankshaft degrees on the 1970 Chevrolet distributor (ARB criteria allows no more than 4 crankshaft degrees retard). Mallory Electric Co. was notified of the above results by letter dated December 14, 1977. In response, by Tetter dated Décember 23, 1977, the applicant stated that the design of the "Unimag" systems were identical to Fairchild Semiconductor breakerTess ignition systems, which the ARB had previously found to meet our ignition system modifications criteria, and therefore, should:—have the same ignition characteristics. The applicant also raised some questions regarding the test procedures used and the repeatability of the test data.

The ARB staff reviewed the evaluation of the Fairchild Semiconductors ignition systems and found that the company submitted ignition test data that met the ARB ignition modifications criteria on similar distributors as tested above. However, the ARB Laboratory did not conduct confirmatory tests during the evaluation of Fairchild KV—E300 for Section 27156 exemption to verify the data submitted. (The Laboratory may waive confirmatory testing if it finds good correlation of test data with the applicant on previous tests). /7 To resolve the concerns raised by the applicant, the ARB Laboratory conducted rétests of the "Unimag" Model 540 on the same distributors that exhibited degradation of ignition parameters; i.e., 1967 Ford 8 cylinder distributor and 1970 Chevrolet 6 cylinder distributor, using the same ignition bench test procedures. The baseline distributors centrifugal and vacuum advance curves were also verified to be within the OEM calibration. Table V and VI summarize the test data. No significant degradation of spark energy and available voltage with load were detected. How— ever, on both distributors, the allowable timing retard exceeded the ARB criteria as experienced in the previous tests. The 1967 Ford 8 cylinder distributor showed a combined maximum retard of 13 crank— shaft degres and the 1970 Chevrolet distributor, 7 crankshaft degrees retard at typical high cruise conditions. Conclusions ‘and Recommendations The ARB Laboratory surveillance tests on the "Unimag" Model 550 showed that the retrofit ignition system would not adversely affect the 0.E.M. ignition system performance. However, installation of the "Unimag" Model 540 on distributors equipped with a non—concentric breaker plate would cause significant retard of ignition timing. Excessive retard could cause engine overheating which would adversely affect exhaust emssion control system. Therefore, the staff recommends that Executive Order D—70—2 granting MaTlory Electric Co. exemption for the "Unimag" Model 540 be rescinded and a new Executive Order D—70—4 be issued lTimiting the "Unimag" Model 540 exemption to 1974 and older 6 and 8 cylinder vehicles equipped with distributors with a concentric breaker plate. In addition, the staff recommends that Mallory Electric Co. be required to take appropriate steps to correct the installation applications of "Unimag" Model 540 atready in the market to conform with the new Executive Order.

Table I "Unimag" Model 540 Breakerless Ignition System Data Summary for 1967 Ford 8 Cylinder Distributor, Part No. C7AF12127AD ‘{Initial Test) A. Centrifugal Spark Advance in Crankshaft Degrees . Engine_RPM Baseline Device 600 ~— 0 0 1600 4 3 2000 6 4 2400 « 8 6 3200 12 ~ 10 B. Yacuum Spark Advance in Crankshaft Degrees Vacuum in. Hg. Baseline Device 3 0 . . 0 6 2 0 9 11 8 15 26 20 20 30 26 C. Spark Duration in Microseconds Engine RPM Baseline. Device 600 1200 . 1300 3000 1100 700 D. Secondary Voltage Rise Time in Microseconds Engine RPM Baseline Device 600 100 —_ 50 3000 f _ 180 50 E. Spark Energy in MitTijoules Engine RPM Baseline Device 600 25.9 30.4 3000 21.4 9.8 F. Available Secondary Voitage in Kilovolts (simulating fouled spark plug) Engine RPM Baseline ' Device 600 16 — 12 3000 15 10 G. Available Secondary Volitage in Kilovolts (with load) Engine RPM ' Baseline Device 600 22 19 3000 19 16

Table II. "Unimag" Model 540 Breakerless Ignition System Data Summary for 1970 Chevrolet 6 Cy11nder Distributor, Part No. 1110466 (Initial Test) A. Centrifugal Spark Advance in Crankshaft Degrees Engine RPM Baseline Device 600 0 0 1400 ' 8 7 2000 16 15 2600 «_ 20 18 3200 22 20 B. Yacuum Spark Advance in Crankshaft Degrees Vacuum in. Hg. Baseline Device 3 0 0 6 0 0 9 6 6 15 25 22 20 26 24 C.— Spark Duration in Microseconds Engine RPM ‘Baseline Device 600 1800 1500 2500 1100 900 D. Secondary Voltage Rise Time in Microseconds . Engine RPM Baseline Device 600 . 150 — 100 3500 150 100 E. Spark Energy in Millijoules Engine RPM Baseline Device 600 39.8 29.3 3500 21.4 16.2 F. Available Secondary Voltage in Kilovolts (simulating fouled spark plug) Engine RPM Baseline Device 600 18 14 3500 1 11 G. Available Secondary Voltage in Kilovolts (with load) . Engine _RPM Baselinge Device 600 26 C 22 3500 17 16

Table I11I "Unimag" Model 540 Breakerless Ignition System Data Summary for 1973 Ford 8 Cylinder Distributor, Part No. D3AZ (Initial Test) ‘ A. Centrifugal Spark Advance in Crankshaft Degrees . Engine RPM Baseline ‘Dévice 600 0 0 1400 2 . 2 2000 11 10 2600 60 14 > 12 3200 17 14 Vacuum Spark Advance in Crankshaft Degrees Nacuum in. Hg. Baseline Device 3 0 > 0 6 0 ~ 0 9 ~—8 . 6 15 18 18 18 22 22 Spark Duration in Microséeconds Engine _RPM Baseline Device 600 1280 1100 3000 1100 850 Secondary Voltage Rise Time in Microseconds Engine RPM Baseline Device 600 120 ~ _ 120 3000 120 ©120 Spark Energy in Millijoules Engine RPM Baseline Device 600 24.6 22.9 3000 18.5 19.9 Available Secondary Voltage in Kilovolts (simulating fouled spark plug) Engine RPM Baseline Device 600 16 _ 14 3000 13 12 Available Secondary Voltage in Kilovolts (with load) Engine RPM Baseline Device 600 22 20 3000 20 18

Table IV "Unimag"* Model 550 Breakerless Ignition System Data Summary for 1974 Toyota 4 Cylinder Distributor, Part No. 29100—2942 A. Centrifugal Spark Advance in Crankshaft Degrees Engine RPM Baseline Device 600 0 0 1000 0 0 2000 ' 8 8 ©3000 16 16 4000 to 21 21 4 B. + Vacuum Spark Advance in Crankshaft Degrees VYacuum in. Hg. Baseline Device 3 ‘ 0 0 6 0 0 "© 9 2 2 15 10 10 20 14 14 C. Spark Duration in Microseconds Engine _RPM Baseline Device 600 1200 1300 4000 1200 — 1100 D. Secondary Voltage Rise Time in Microseconds Engine RPM Baseline / Device 600 . 100 + 100 4000 100 100 E. Spark Energy in Millijoules Engine RPM Baseline Device 600 25.9 29.6 4000 25.9 22.9 F. Available Secondary Voltage in Kilovolts (simulating fouled spark plug) Engine RPM Baseline Device 600 16 16 4000 . 15 14 G. Available Secondary Voltage in Kilovolts {with load) Engine RPM BaselTine Device 600 23 20 4000 22 19

Table ¥> "Unimag Model" 540 Breakerless Ignition System Data Summary for 1970 Chevrolet 6 Cylinder Distributor, Part No. 1110466 (Retest) A. Centrifugal Spark Advance in Crankshaft Degrees Engine RPM Baseline Device ‘ Retard 1000 3 2 ' 0 1800 14 14 0 3200 22 21 1 3400 24 21 3 3600 26 22 4 4000 26 23 3 B. Vacuum Spark Advance in Crankshaft Degrees Vacuum in. Hg. Baseline Device Retard 3 0 0 0 .6 0 0 0 9 6 6 0 15 25 22 3 20 27 24 3 C. Spark Duration in Microseconds Engine RPM BaseTine . Device 600 2000 1800 3500 1000 ’ 950 D. Secondary Voltage Rise Time in Microseconds Engine RPM Baseline ‘ Device 600 90 90 3500 90 90 E. Spark Energy in Millijoules Engine RPM Baseline Device 600 36.0 32.4 3500 15.6 19.4 F. Available Secondary Voltage in Kilovolts (simulating fouled spark plug) Engine RPM Baseline Device 600 17.5 c 15.5 3500 11.0 14.0 G. Available Secondary Voltage in Kilovolts (with load) Engine RPM Baseline Device 600 25.5 23.5 3500 17.0 21.0

Table VI "Unimag" Model 540 Breakerless Ignition System Data Summary for 1967 Ford 8 Cylinder Distributor, Part No. C7ZAF1217AD . » (Retest) A. Centrifugal Spark Advance in Crankshaft Degrees— Engine RPM Baseline ~ Device ‘‘Retard 1000 4 2 1 1800 8 5 3 3200 17 12 5 3600 T19 14 5 4000 20 18 2 B. Vacuum Spark Advance in Crankshaft Degrees Vacuum in. Hg. Baseline Device Retard 3 0 0 0 6 4 3 1 9 13 9 4 15 25 17 8 20 25 18 7 C. Spark Duration in.Microseconds Engine RPM Baseline Device 600 1600 > 1800 3000 1000 900 .‘ D. Secondary Voitage Rise Time in Microseconds Engine _RPM Baseline Device 600 120 120 3000 120 120 E. Spark Energy in Mi1lijou1es ‘ Engine RPM Baseline Device 600 31.7 35.6 3000 18.2 17.6 F. Available Secondary Voltage in Kilovolts (simulating fouled spark plug) Engine RPM Baseline Device 600 19 16 3000 13 14 G. Available Secondary Voltage in Kilovolts {with load) Engine RPM Baseline Device 600 27.0 21.5 3000 19.5 19.5


Document Created: 2005-09-01 12:39:51
Document Modified: 2005-09-01 12:39:51

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