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    Replacing choke cable

    Things to know

    The Stag uses two choke cables, one for each carburettor. The single choke pull is directly attached to the two cables, you cannot easily dismantle the inner cable from the outer as there is no easy access to the heads of the individual outer cables.

    This explanation will deal only with a total replacement. It's how I did it and I suspect others will have their own ideas and methods. My replacement was supplied by James Paddock and was a cable kit with a separate new knob, grub screw and Allen key.

    Tools required

    Longish shaft Philips screwdriver
    Snipe nosed (pointed) pliers or right angle circlip pliers
    1/4" AF spanner or socket
    Roll of insulation tape
    Sheet metal cutters, cutting jaw in pliers or side cutters
    Very fine or jewellers flat head screwdriver
    Magnetic tray to retain screws etc.
    Very fine punch or a pin
    Fine metric Allen key (2mm or 2.5mm) should be supplied with new choke knob
    3.5 mm drill bit and pillar drill or a vice and electric drill
    Several small cable ties
    Portable vacuum cleaner

    Steps

    1. Remove the carb air filter housing. Undo the carb end of the choke cables and release the outers from the carb brackets, be careful not to break the metal clips, as you will need them again at the end. They are 40 ish years old and can grow brittle. Disconnect the battery.

    2. Tape or cable tie the carb ends of the cables outers together close to the end of the shortest cable outer.

    3. Check your choke knob to see if it has a grub screw, self tapping screw or nothing holding the knob onto the shaft. If there is a grub screw or self tapper, undo and remove the knob. If there is no obvious fixing, then you have the original or OE replacement choke knob and cable system. Pull the choke cable out until the shaft is exposed. You will see a very small offset hole, this has a minuscule roll pin through it, push out with the fine punch or pin and remove the knob. Unfortunately this cannot be reused with the Paddocks replacement.

    IMG_3335.jpg

    4. Undo the decorative bezel with the narrow point pliers or circlip pliers. Other tools could be used.

    5. Between the gearstick and the ash tray is a separate wooden panel, the edge nearest the gearstick has a plastic trim running across it. Gently lever this up from the gear stick side.

    6. Immediately beneath the edge closest to the gearstick you will find two screws, remove and store.

    IMG_3331.jpg

    7. Remove the three heater control knobs and store. I removed the heater control facia and ashtray but it's not absolutely necessary.

    IMG_3327.jpg

    8. Where the passenger parcel shelf is screwed to the centre console you will find two screws, remove and store.

    IMG_3332.jpg

    9. Lift the wooden panel around the gearknob, it is held by a clip at the handbrake end. Pull the complete centre consol towards you by 3" or 4". Vacuum out the accumulated 40 years of c**p!

    10. Disconnect the white/blue wire from the choke warning light switch.

    IMG_3341.jpg
    Last edited by Carboy0; 6 October 2016, 16:12.
    Chris
    Magenta Stag TV8 MOD

    #2
    11. Remove the choke rod and warning light switch from the rear of the centre consol and undo the warning light switch securing clamp from the unit. Remove the warning switch and clamp and save.

    IMG_3342.jpg

    IMG_3354.jpg

    12. Withdraw the choke rod and inner cables, leaving the outers in situ.

    13. Take a deep breath. Using the wire cutters or sheet metal shears to clip off the cables immediately after the dual section.

    IMG_3349.jpg

    IMG_3350.jpg

    As you can see, I left the cables in but it wasn't necessary.

    14. Remove one of the two cable outers, making sure that the other one is not disturbed.

    15. We are going to use the remaining old outer cable as a leader for the new cable. From inside the car, take your new complete cable, insert the shorter of the two inner cable end into the remaining old outer. Tape the old outer to the end of the new outer and bind in the longer cable outer and inner to the side of the old outer, so that there are no loose edges, to catch on the under dash area or the bulkhead.

    IMG_3351.jpg

    16. From inside the cab push the combined cable gently, whilst rotating or wriggling round and back if it's not possible to rotate it. If you have a helper get them to help by wiggling the cable from under the bonnet, but tell them on pain of death not to pull the cable outer as should the old and the new come apart, then you have a mega problem. Eventually the taped section will appear through the bulkhead under the bonnet. Keep pushing until the new choke rod is within 4-5" of the correct position.

    17. Refit the choke warning switch, reattach the blue/white lead to the switch. Loose fit the cable rod in position and attach the chrome bezel a couple of threads.

    18. Using the rear adjuster nut, turn it until there are enough threads protruding through the centre console to attach the bezel. The tighten the front bezel. Re-attach the battery, switch the ignition on and pull out the choke an inch or so and check that the choke warning light comes on.
    Last edited by Carboy0; 4 October 2016, 11:05.
    Chris
    Magenta Stag TV8 MOD

    Comment


      #3
      19. Checkout the end of the choke rod, it has an indented section milled into the rod 4-5mm from the end.

      IMG_3357.jpg

      The open end of the knob is shaped to fit over the rod only one way round. Push the choke rod fully in and line up the choke knob next to it, measure off the knob shaft so that the position of indent section can be marked on the choke knob. Make sure that the internal shape of the knob is aligned with the choke knob.

      IMG_3359.jpg

      20. Using a 3.5mm drill bit. Drill a hole in the knob to align with the choke knob indent. Using the new grub screw and Allen key, force the grub screw into the new hole in the plastic knob, rotating so as to cut a tapped thread into the knob.

      Offer up the knob onto the rod and screw the grub screw down, securing the knob to the rod.

      IMG_3363.jpg

      IMG_3364.jpg

      21. Push the centre console back into place and resecure the 4 screws. Replace the heater control plate and ashtray (if removed). Reposition the gearstick surround and replace the loose wooden panel.

      22. Under the bonnet, remove the old outer and all the tape and reconnect the inner cables. Re-clip the cable outers carefully, I broke one in the process - not recommended.

      23. Pull the choke knob out fully and then check the carburettor choke levers for full travel. If the levers aren't extended, adjust the inner cables and outers until the levers are fully extended.

      24. Start engine on the choke and ensure that there are no snags or tight spots when moving the rod. Ensure that the choke knob goes fully home and under the bonnet that the carb chokes are fully released. Adjust if required.

      25. Drive your Stag and enjoy.
      Last edited by Carboy0; 4 October 2016, 09:14.
      Chris
      Magenta Stag TV8 MOD

      Comment


        #4
        Thanks for that

        Comment


          #5
          You are welcome
          Chris
          Magenta Stag TV8 MOD

          Comment


            #6
            Nice one, Chris.

            Perhaps Admin can move to the Tech Section for ease of future finding. Hopefully mine won't need doing for a few years yet
            White 1976 build ("Mk2") only a few mods

            Comment


              #7
              Originally posted by StagJonno View Post
              Nice one, Chris.

              Perhaps Admin can move to the Tech Section for ease of future finding. Hopefully mine won't need doing for a few years yet
              I'll leave it here for a week or so and then move it.
              Brian
              Brian

              Comment


                #8
                Thanks Brian
                Chris
                Magenta Stag TV8 MOD

                Comment


                  #9
                  really helpful when I did mine yesterday thank you. I am still very disappointed that I can not source an original cable to enable the factory knob to fit

                  Comment


                    #10
                    An excellent description of an awkward job, thanks.

                    Steve D
                    SteveD
                    White 1972 2nd Sanction TV8 BW35 Wire Wheels

                    Comment


                      #11
                      Originally posted by SteveD View Post
                      An excellent description of an awkward job, thanks.

                      Steve D
                      You are welcome Steve, glad it helped.
                      Chris
                      Magenta Stag TV8 MOD

                      Comment

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