405 TD where does the speedo cable enter the gearbox

Discussion in 'Peugeot 405' started by 405 TD Estate, Jan 4, 2006.

  1. This is to try and fix a wobbly speedo - I can follow the speedo cable
    through the bulkhead but then it disappears - I assume it must go into
    the gearbox but can't find it anywhere.

    Also if you know if it's likely the worm drive is worn/damages or how
    to replace it (I suspect this over the cable) let me know.
    405 TD Estate, Jan 4, 2006
  2. 405 TD Estate

    Malc Guest

    If it's the same as the Citroen one then at the back on the left hand
    side. Does this model have an electronic speedo? If so then there won't
    be a worm drive but a sensor and a plug i cable.
    Malc, Jan 4, 2006
  3. 405 TD Estate

    Bob Minchin Guest

    405 TD Estate wrote in message
    It is driven off the right hand drive shaft.

    There are at least three versions i know of.
    early ones had a direct cable driven from the gearbox
    next ones had an electronic sensor direct into the gearbox but with a
    mechanical cable connected into the top of the sensor. Dash speedo is
    mechanical but the electronic info connects to the ECU only
    Later models only have the electronic sensor and electronic dash

    Sensors come in at least 3 flavours.

    1 has the full cable fitting into the top c/w hole to pass the cable in to
    pick up the drive.
    2 has the fitting to hold the outer of the cable but no hole to take the
    mechanical cable. Initially looks like a substitute for type one but the
    there is no ****ing place to fit the cable! Watch out for this is you are
    getting s/h part from a scrapper.
    3has a flat top and is obviously not designed for use with the cable at all
    and was redesigned for late model, electronic dash only.

    Mechanical cable is held in with a tapered rubber plug passing to the side
    of the cable bush. Looks really naff but in practise is easy to remove
    re-fit with pliers.

    Electronic sensor (hall effect) is held into gearbox with a single 10mm A/F
    hex bolt.

    Intermittent speedo operation can be any of the following:

    Cable problems, mechanical failure of the drive between input and output of
    the electronic sensor or teeth stripped from the driven pinion in the
    gearbox. (easy change 'bout a fiver for a new one from Pug)

    If you are removing the sensor/cable/pinion from the gearbox, tip the car
    over on a ramp with the right hand side as high as practical as this will
    stop nasty smelly hypoid gear oil running down your arm.

    Yup, just guess how I know all this..........


    Bob Minchin, Jan 4, 2006
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