Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on February 25, 1986.
As of Wednesday, October 16th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
40 IDA 3C(1)1969-1971 Porsche 911T with 2.2T engine

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-144-1
  • Executive Order 144-1 / D144-1
  • ARB # D-144-1
  • Executive Order No: D-144-1
  • C.A.R.B. No. D-144-1
  • Resolution D-144-1
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-144-1 PDF

D-144-1 Document:



                                                           (Page 1 of 2)


                                State of California
                                AIR RESOURCES BOARD

                               EXECUTIVE ORDER D—144—1
                     Relating to Exemptions under Section 27156
                                 of the Vehicle Code


                                 PORSCHE MAILORDER
                WEBER 40 IDA 3C {1) 2.2T CARBURETOR CONVERSION KIT


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—4§—5;

IT IS ORDERED AND RESOLVED:     That the installation of the Weber 40 IDA 3C (1)
2.27T carburetor conversion kit distributed by Porsche Mailorder, Santa Monica,
California 90402, 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 1969—1971 Porsche 9111
with 2.2L engines.

Engine Size (L)      Venturi     Main      Emulsion      Idle     Air Cor.
   and Model!         {mm)     Jet ({mm)    . Tube    Jet (mm)    Jet (ma}

2.21T                  30       1.25         F—1         0.55       1.80

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 device 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.

Marketing of this davice 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 tha Air Resources Board.  Exemption of a kit shail not be
construed as an exemption to sell, offer for sale, or advertise any component
of a kit as an individual device.


 PORSCHE MAILORDER                                    EXECUTIVE ORDER D—144—1
                                       '              (Page 2 of 2)




 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—PQLLUTION SBENEFITS OR ANY
 ALLEGED BENEFITS OF THE WEBER 40 IDA 3C (1) 2.2T CARBURETOR CONVERSION KIT.

 No claim of any kind, such as "Approved by Air Resources Soard" 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 untrue or
 misleading advertising unlawful, and Section 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
     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 vehnicle 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 Exectutive Order will be
 submitted to the Attorney General of California for such action as he deems
 advisable.

                                              _{i
 Executed at El Monte, California, this     S *     day of rebruary, 1986.
                                                          <

                                           4Wt HA11V!
                                            / 171     ,   ,,:\15/


                                           K. D. Drachand, Chief
                                           Mobile Source Division


                         State of California

                         AIR RESOURCES BOARD




EVALUATION OF PORSCHE MAILORDER‘S 40 IDA 3C (1) 2.2T WEBER CARBURETOR
 CONVERSION KIT FOR EXEMPTION FROM THE PROHIBITIONS IN VEHICLE CODE
       SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13
                OF THE CALIFORNIA ADMINISTRATIVE CODE




                           FEBRUARY, 1986


    EVALUATION OF PORSCHE MAILORDER‘S 40 IDA 3C (1) 2.2T WEBER CARBURETOR
     CONVERSION KIT FOR EXEMPTION FROM THE PROHIBITIONS IN VEKICLE CODE
           SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13
                    OF THE CALIFORNIA ADMINISTRATIVE CODE




                                      by
                            MOBILE SOURCE DIVISION

                             State of California
                             AIR RESOURCES BOARD
                             9528 Telstar Avenue
                             E1 Monte, CA   91731

(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



       Porsche Mailorder has requested exemption from the prohibitions in

_ Vehicle Code Section 27156 for an aftermarket carburetor conversion kit.    The

 kit is designed to replace the original equipment Zenith 40 TIN or Weber 40

 IDT carburetors used on 1969—1971 model—year Porsche 911 T vehicles.

       The applicant, in order to demonstrate no adverse emissions effects with

 the use of the conversion kit performed comparative exhaust emission tests.

 The test results revealed that:

       i)      stock systems are high emitters due to age and deterioration and

 that repair parts are quite costly acting as a deterrence for owners to

 repair; and

       ii)     the conversion kit being applied for did not increase the emissions

 of the vehicle tested.

       Based on the engineering evaluation of the conversion kit and an

 analysis of emission test data, the staff recommends that an exemption be

 granted for the vehicles applied for and that Executive Order D—144—1 be

 issued.


                                       CONTENTS

                                                  Page Number

SUMMARY                                               i

CONTENTS                                             1i

1.     INTRODUCTION                                   1
II.    CONCLUSION

III.      RECOMMENDATIONS

IV.    DEVICE DESCRIPTION

V.     DEVICE EVALUATION

VI.    DISCUSSION

       APPENDIX

       WEBER 40 IDA 3C (1) CARBURETOR              A—1

       MIXTURE ADJUSTMENT PROCEDURES               A—2




                                         i1


EVALUATION OF PORSCHE MAILORDER‘S 40 IDA 3C (1) 2.2T WEBER CARBURETOR
CONVERSION KIT FOR EXEMPTION FROM THE PROHIBITIONS IN VEHICLE CODE SECTION
27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13 OF THE CALIFORNIA
ADMINISTRATIVE CODE

I.    INTRODUCTION
      Porsche Mailorder located in Santa Monica, California 90402, has applied

for exemption from the prohibitions of Vehicle Code Section 27156 for an

aftermarket add—on replacement carburetor conversion kit.   The conversion kit

uses two model 40 IDA 3C Weber carburetors to replace the original equipment

(OE) Zenith 40 TIN or Weber 40 IDT carburetors found on 1969 through 1971

model—year Porsche 911 T vehicles.

      The applicant, in order to demonstrate that an adverse emissions impact

would not occur with the use of the conversion kit, performed comparative

exhaust emission tests on a vehicle equipped with the OE carburetion and then

with the aftermarket carburetor kit.

      This report describes the Air Resources Board‘s (ARB) evaluation of the

Weber model 40 IDA 3C (1) 2.2T carburetor conversion kit and discusses the

findings of the evaluation.

II.   CONCLUSIONS
      Based upon the applicant‘s submitted comparative exhaust emission data

the staff has concluded that the installation of the Weber 40 IDA 3C (1) 2.2T

carburetor conversion kit would not cause an adverse emissions impact.

III. RECOMMENDATIONS
      The staff recommends that Porsche Mailorder be granted exemption from the

prohibitions in Vehicle Code Section 27156 for the Weber 40 IDA 3C (1) 2.2T

carbuertor conversion kit for use on the vehicles requested.


      The staff also recommends that Executive Order D—144—1 be issued allowing

use of the Weber 40 IDA 3C (1) 2.2T carburetor conversion kit on limited

1969—1971 model—year Porsche 911 T vehicles.

IV.   DEVICE DESCRIPTION
      The Weber 40 IDA 3C (1) carburetor is of a triple venturi downdraft type

and two units are required for each application.         All throttles (6) are

simultaneously operated by a common linkage.

      Each paired triple venturi carburetor contains a dual float and

individual idle, main, and accelerator circuits.         However, it contains neither

a choke nor a power enrichment circuit which is common among these types of

carburetors (see Appendix 1).

      Weber carburetors are well known as being adaptable for various types of

driving applications.      In order for the applicant to provide standardized

components for this vehicle application, Table 1 is provided.



                                       Table 1
                    Weber 40 IDA 3C (1) Component Variables

 Engine Size       Venturi         Main          Emulsion        Idle       Air. Cor.
  and Model         {mm)         Jet {mn)          Tube        Jet {mm)     Jet (mm)

      2.21           30             1.25           F—1           0.55            1.80

      All of Porsche Mailorder‘s Weber 40 IDA 3C (1) carburetors use special

extefided secondary venturi tubes.

      The applicant‘s mixture adjustment procedures for the Weber 40 IDA 3C (1)

carburetors are found in Appendix 2.        The procedure basically states that the

carburetors are to be adjusted equally and individually to obtain the

smoothest idle.   A "Uni—Syn" (air flow meter) is needed to measure and adjust

each venturi for equal air flow.


     Idle HC/CO limits are not given for adjustment of the carburetors,

however, when adjustments are performed according to the installation

instructions, the emission levels are less than the MVIP idle standard adopted

by the State for this type of vehicle.

V.   DEVICE EVALUATION

     The applicant submitted comparative exhaust emission data from tests

performed by Los Angele s Emission Laboratory, Inc.               The procedure used for the

evaluation was the CVS—75 as explained in the Code of Federal Regulations,

Part 86:00.     The test vehicle is described in Table 2 and its comparative

exhaust emission result s are found in Table 3.

     Prior to the baseline tests the test vehicle was adjusted and set to

original equipment specifications.



                                             Table 2
                                    Test Vehicle Description

              Year                                      1971
              Make                                      Porsche
              Model                                     911 T
              Eng. Size                                 135.0 CID     2.2L)
              Emission Controls                         PCV, Evap, U
              Odometer Mil eage                         111,000
              Transmission                              Manual

(1) PCV — positive crankcease ventilation; Evap — Evaporative emission controls;


                                             Table 3
                                    Exhaust Emission Results

                             Exhaust Emissions in gm/mi                 Fuel Economy
Test Type                     HC        CO        NOx                         mi/gal

Baseline                     12.2         104.3        0.77
Device                        9.0          60. 7       0.43

Typical Emission
  Values 1971 w/
  110,00 mi.                 7.8           80.9        3.80                    N/A


      The ARB did not perform confirmatory testing of the conversion kit due to

lack of a well maintained test vehicle and extreme costs in repairing one to

appropriate levels.

VI.   DISCUSSION
      As evident from the comparative emission results the baseline HC and CO

values are above typical 197l emission levels.     Although the test vehicle was

tuned prior to testing, it is apparent that the OE carburetion produced

emission levels above the typical values for the 1971 model—year.

      The staff also performed an analysis of emission inspection data of six—

cylinder Porsche vehicles having been tested at the time of registration

change and found that 90% of the vehicles failed at least one of the idle or

loaded mode HC/CO limits.   The staff contacted several Porsche dealerships in

the area and questioned service personnel about repairs tb this type of

carburetion system.   It was found that the replacement cost of the OEM

carburetors is $630.00 each, making the cost of replacing both carburetors

well over a thousand dollars.   The high repair cost acts as a deterrence for

the proper repair of the OE system.

      The Weber 40 IOA 3C {1) 2.2T carburetor conversion kit is similar to the

same carburetors used on earlier model—year Porsches.     Although these

carburetors require precise adjustment to operate properly, most of the early

foreign vehicles use multiple carburetors similar to these and most repair

personnel are familiar with them.     Additionally, parts to repair or renew

these carburetors are readily available.

      The deterioration factor of high performance sports cars such as Porches

with mileage in excess of 50,000 miles is extremely high.     This is also

compounded since the model—year vehicles for this application are approaching

obsolescence and replacement parts are becoming extinct.


                                       — 4 L


     The exhaust emission levels from the test vehicle with the Weber

carburetors installed were lower than the emission levels with the vehicle in

the baseline configuration.     There were no exhaust emission standards for the

1971 model—year using the CVS test procedures, therefore, the results can only

be compared to typical values for the 1971 model year.     This comparison shows

that CO and NOx were well below the typical values and HC was only slightly

above the typical values.     The staff believes that the installation of the

Porsche Mailorder 40 IDA 3C (1) 2.2T carburetor conversion kit will not have

an adverse affect on the exhaust emissions from the vehicles for which the

exemption is requested.


                                                             A—2
                                      +                  .
                                          WEBER 40 IDA 3C ADJUSTMENT                                           ,


         1t‘s being taken for gnranted that you have had some experience working with
    Porsche engines, at Least at the tune—up fevel. Webers are easy to adjust when
    companed to other Porsche induction systems but they ane much harder to adjust
    than an American two barrel. 1t takes a certain feel; which usuatly can be LZcormned.
          Before attempting to adjust the carbs the engine must have comrect cam and
    ignuition timing aftong with a careful valve adjustment. The points, plugs, distri—
    butor cap, ignition wmires, ete., should be in Like—new condition. The distmributor
    must be mechanical advance or modified for straight mechanical advance. The
    compression differentialt between the cylinders should not exceed 20 psi max. An
    enging compartment fuel filten mill keep the carbs clean Longer,.                         When the ainr
    cleaner is finolly instatled, it should have a clean ehement.
         DEFINITIONS:                                              >                                       .
         Front, Back, Left, Right, ete., ane defined from your position as you sit in
    the dhriver‘s seat.                                                      .
         The Throttle Body is the main part of the canb. What it doesn‘t contain is
    attached to if.
         The Mixture Schews thread into the hase of each throttfe bore. They have
    aprings to maintain a sutting and there ake three of them in each camburetorn. Be
    coreful as you turn these in as they seat in the throttle body. Turning a mixtune
   screw in Zeans the mixture and turmning it out does the nevense.
        The Idfe Scrow is sometimes catled the idfe atop sorew. There is one on the
   back cf each canb and it determines the minimum throttle setting through its
   action on the throttle arm of the corb. When this sorem is tuined afl the way out
   the thiottle plates rnest against the throttle bores.                            ‘
        The Ainr Scrows ane similar to the mixture screms in that they openate on the
   needle vaflve principle. There are also thriee of these in each carb and they ane
   Zocated close to the mixture sorews. They have an 8 mm flock nut on them to maintain
   their seiting. As they ane adjusted out they fet ainr aLlip around the throttle
   plates to equalize the volume of mixture entering each cylinder at ldfe. The basic
   setting is 1/2 tuin out and great care is to be taken since these sorems also scat
   4n the throttle body.
        Side to Side Bafance means equal vacuum between the two sideos of the engine
   thiough adjusiing the iale scaows and throttle Linkage.
        TOOLS needed to adfus%t the carbs ane:
        Stubby screw drivers io adjusi the mixture and air Acrous
        STE SYNCHROQMETER f{for adfuating vacuum at the aqlir screws [available at Porsche
        Two & mm combination wrenches pfus a Tnm one.                              Mailorder}
        P 2264; a.PaM::hg aspecial too?l that aflows you to check the 5&0&{ LZevel _
                   with engine amnming{available at PORSCHE MATLORDER)
        A samatt co measuring vial; useful for measuring the accelerator pump infjfection
                   quantity                                                                                        '
        These instructions atart with the engine thoroughty cleaned and the mani{ofds
gi”%;.mmuad with new gaskets.                      The Lbinkage should be clean and high temp grease
      ed to the bafl sockets.                  An & mm open end wiexch can be used as a ball joint
    eparator, Now gaskets ane used under the carburetors when they are instalZed.
   The air horn sahiefd is the part of the ainr cheanen that is clamped to the top of

                      4
                                                                                                                       ——




                                 +CLEAN THE CAPTURETOR®                USIDE AUD OUT BEFORE INSTALLIUG.
                                      ho    +y@ PCued ~10m #              —t bowl venrnts on 40mm carbsl
            soeed mepraentiet he ie           «>        se         Pe           hoom en mm


*L            :ton by the ainr houns.    Anew gasket should go between the air horn shieclkd
 | fi; ftllaxzbgkbmubln.   A gasket can go under athe air hokns if you want to be sure of
  gerting an acourate adjustment with the Uni—Syn.                                _
       Next, the Linkage should be hooked up excopt for the ahort batt fointed
  carburator nods. If you are converting to Webers from leniths, the Linkage
  akm connected to the crossbar on the might side sometimes has to be bent further
  to the right to aftfow the shont bafll jointed canb nod to travel in a totaffly
  verticat plane when vieming the mechanism from the rear of the vehiclke. Find the
  idfescrew at the rear of each carb and twin the screw aff the way out ao that the
  thaottfle plates nest against the throtitle bore watls. Now turn the serew in until
  it {just touches the throtife arm and then turn it 1/2 tutn more. Repeat with the
  othercarb. Now adjust the short bafl jointed reds so that they can be snapped
  onto the thriottle anm bafl without disturbing the throttle setting. This should
  give the carbs side to side bafance.
        Oil the throttle shafts and acceferator pump Linkage (hencefonth every 3,000
  mifes)} and check for asmooth operation. Take the play out of the Llinkage by.
  shontening the Llong bafl jointed rod that connects the pivot point on the front
  of the Leoft menijofd to the crossbar; making saure that the throttle closes all the
  way. Next, have someone get inside the canr and {ffZoor the gas pedalt while you are
  Looking into the carbs to make swre the throitle plates nrise to a complete vertical
  position. You may have to adjust the thiottle stop behind the pedal, Be sure
  throtife plates don‘t go past the vertical position.                          .
        You can now hook up the fguel Lines. f’g the original braided fuel Llines to
  the carburetors anre old and ragged and you don‘t want to buy the complete set—up
  from Porsche you can nemove the entire assembly from the car, cut about 1/2" from
  the metalt Llines and instafl regular neoprene fue?l hose andstainfess hose clamps.
 PDon‘t {forget the fifters,.    The German high pressure fuel Lline is safenr.

      You now have allk your toolks together and are ready to adjust the carbs.
  he initial adjustment on the Mixture Screwms is 1 1/2 tuins out {rom the seats.
‘he Idbe Screws are 172 tuwin in after touching the throttle arm on each carb.
  he Ain Screms are 1/2 turn out4 & mm nuts are Llightly Locked with the scrows
 being hefd stationary. Attach the Tach—Dwell Meter (on CD ignition the hot Lead
 goes to an adaptor on the point wire connection on the distzibutor}.         Warm the
 engine to at leaat 140 degrees. Unlock the rod from the right carb and eventy
 tuin the idfe serews in until the tach reads 1190 npm. Chech the side to side
 batance of the carbs with the Uni—Syn to make sure both sides of the engine are
 pulling equal vacuum. Adjust an idle screw i{f need be. Pick a barre? and twor
 the mixture acrow in until the engine speed drops and then slowly out again until
 4t auns smoothly. Remember to Ret the engine speed atabilize afier each increment
 of acrew turn. 1j you found that the engine nuns smoothly at less than the
 initial 1 1/2 tuin setitting then you can turn afl the uther mixture screms a half
 turn in and start over.        1f you need 2 1/2 turns to make the engine sun well then
 do it. 3 1/2 turna out on more usually caftfs for bigger idle jots.
       1{f the engine doean‘t kespond when you tuin one of the mixture scxems in and
 out it means that the cylinder is not getting ignition or it is not getting idfe
 mixture. 1f the ignition and compremsion on the cylinder check out then an idle
 passage is plugged. Remove the mixture screw and idle jet and blow air back and
 forth to clear the ubstnuction.        DON‘T put compressed air through the fLloat vent.
 If this doesn‘t wouk the idfe passages have to be boiled out and possibly checked
 with a duct guage. Aéways cil o—rings when renfacing idfe jets.
       After gyou have the idfe mixture initiatly adjusted you can bring out your
 Uni—Syn and adjust the Air Serewm$. Find the barznel which is pullZing the most
 ‘sacuum, adjust the fEoating baiil to the center Level in the Uni—Syn using the
   justment on the Uni—Syn, then adjust the other cylinders to an equal vacuum
    ing the ainr screws,. The cylinder which is pulling the most vacuum you LZeave
   onge. Reomember to unfock the nuts befonre adjusiing the air serews. Tighten


    — them by hand as gyou go afong; when you‘re finished you can tighten them using
      the &mm wrench while hkholding the screw stationary with the stubby screwdriver.
  ‘        Now readjust the mixture sorows until you get the correct adjustment.
,.om lsuailky gyou‘ll tuim the mixture sorew in until the engine slows down and then
ul   out again aftouly until it runs smoothly and then perhaps another haff turin.        You
       nt the maximum apeed with the Lleast fuel. 1¢ takes practice. Sometimes as you
       in out the mixture serew it apeeds up the engine enough to advance the timing
     and that immediately adds 300 on 400 npm. When you tiuin the idfe screus back a
     hair to conrect this the weights flop back and this is what sfows the engine.
     1t‘s best to got your initial adjustment anround 1100 xpm and hope the distributor
     doesn‘t intercede.   Check the aide to side bafance each time you adjust the idfe
     screws. The mixtures can be a LZittle fean or a LZitile aich but they must be
     consiatent from cylinder to cylinder.
          When you are finiashed adjusting the mixture scomrews back—of{ the idfe screws
     eventy to §50—950 apm and check bafance. Adjust the rod thait attaches to the right
     carb thiotile arm unfess it will snap on without moving the thiottle. You can
     check the befence at 3000 apm afso. Before you put the ain cleaner on take a Zook
     at the front of the engine in the anrea of the pressure sonder and thermostat. 1{
     4t‘s wet with oil put a new o—king on the thenmostat before your clutch gets wet.

          You cheok the injection quantity with a narion co mersuring vial which can be
     purchased {from a pharmaceuticaZl supply house. Attach a wine around it and hang
     it down to catch the gas as it squiria out of the acceferator pump jet. .8 co for
     one complete throttle action is about right. The injection quantity can be vanried
     by adjusting the Length of the stroke using the nuts on the threaded shaft. The
     ignition is turned off during this cpenation.. Start engine to burin out gas each time.
          The {ffoat Llevel should afways be checked on new carburetors.     It‘s a good idea
     to check the float lovel when a carburetor is aesbuilt and new needie valves are
         tabtled. It‘s possible to check the {Looat Llewel with the engine aunning using
      * ische tool P ??6a. This gauge clamps onto the {Lloat bowl after you remove the
      L     bowL? plug. Remember to use the fiber washer which comes with the quage and
     &      the gauge in fairty tight since if it Lleaks the float won‘t aise and gas will
     pour out of the carb when you start the engine. Alwoys wipe up any spilled gas
     after you instolk the quage and before you start the engine. I1f the {Lloat Llevel
     ds incornect, you remove the Lange bramas plug ouer the {Evoat needle valve and add
     on asubtract height by using various thickness washers under the needfe vafue. The
     washers ane available in the gasket khit. Porsche Mailonder manufactures the quages.

          1{ you spend a day tuning your carbs you‘ve gained experience and patience.
     tou have afso changed the shape of your knees. Treat the needfe seats wmith respect
     recause they can‘t be repfaced. When adjusting the mixture screus remember that
     ‘hey can afl be a Zlitile fean, on they can all be a Zlittle rich, but they should
     e one wayon the other.                      T
         Almays check for mater in the fue?l system.   Protect your investment!

          The carburetors should be checked for percolation in the ffoat bowfs agter the
      igine is thoroughly heated and car is allowed to ait. I1f this condition exists,
      id it is not due to too high of float Level or presaure in the gos tank, the 914—6
      exolic insulators Ahoukd be placed under the intake manifgolds.      The part number 4s:
       1—108—131—00. They have to be opened—up for cars with a Larger than 32mmport
       22. A variety of these inaulators are available from PORSCHE HATLORDER.
                                                                    PORSCHE MATLORDER
         m                                                                 135—17th St.         _
        Eoul                                                      SANTA MONICA, CA9040?
                 '                                                    {213) 393—5423


                                             A—1
                                      Weber 40 IDA3C CarBuretor




                                               y£.
                 wmcs’—————%~                          B
                (HEX muTt                raegr       zy o
                 GaASKkET
                   PLUG
                                                                                          —s———— HEX NUT
         NEEDLE VALVE
              GASKET
                                                                                          &=—— RETAINER

          SHIM GaASKET           +—          h

      COVER ASSEMBLY                             E3

          .                              ¥
                                             w44 B
                GASKE


              ATOMIZER
               VENTURE
                                                         pressure /
                 JET CARRIER                             Pvaive
                                                                        B
                                                                         san
   CGASKET
  MalM JET                                                   NOZZLE              ;           ‘m.          s
                                                                               m              '
JET CaRmigr                                                           SUC'ON VALVE _
inle scrsw                                                            5o mP¢ f  CaskEt . .
    SPRING                                                                                         FLOAT SHAFT sCREw
   WASHER
    O—RING




      DRAIN SCREW
       SEALING RING
       YENTURE SCREW
       AIR ADJUST SCREW
                     PLUG                                      STUD
                         HEX NUT                                SERING
                                                                 PLUNGER
                                                                DIAPHRAGM
                                                                    PUMP BASE
                                                                               SPRING
                                                   HOUSING                     DIAPHRAGM
                            i«




                                                                                     PUMP COVER
                                                                                      LOCK WASHER
                                                                                             HEX NUT




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Document Created: 2005-09-01 12:42:27
Document Modified: 2005-09-01 12:42:27

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