306 XTdt TDC/RPM sensor location?

Discussion in 'Peugeot 306' started by Rexx Magnus, Nov 20, 2007.

  1. Rexx Magnus

    Rexx Magnus Guest

    Aside from not having the RPM gauge working, I'm assuming (referring
    to Haynes wiring diagrams) that the sensor also runs to the ECU.
    Whereabouts is the sensor located on a 1995 XTdt? Someone mentioned it
    on a forum stating that it was attached to the alternator, but I can't
    see anything there - admittedly I haven't had an in-depth look yet.
    I'm also guessing it could be on the crankcase somewhere, as it is on
    things like the Renault Scenic.
    Does anyone know where it is referred to in the Haynes manual at all?
    It's not in the index.
    Rexx Magnus, Nov 20, 2007
    1. Advertisements

  2. Rexx Magnus

    Rexx Magnus Guest

    Then again, totally confused now. Noticed mention of crankshaft
    sensor in the DW models section of the manual, but no mention of
    such a thing in the XUD section. Mine looks like an XUD - I tried to
    check on the front of the engine casing, but the only digits on it
    are on two plates. One is small and says D8A and PTC. The other
    larger one that is stamped says 10CU6R.

    Actually, does the XTdt have an rpm gauge in the console? I'm just
    wondering if the display has been replaced with one from a different
    model. Mine's got the oil min/maxi and rpm gauges on it.
    Rexx Magnus, Nov 20, 2007
    1. Advertisements

  3. The XUD series engines didn't have any sort of engine management ECU -
    some had an immobiliser operating on the stop solenoid, but that's it.
    I think that the rpm may well be picked up from the ripple on the 12v
    supply to the car from the alternator, in which case you are looking for
    something which doesn't exist!
    Albert T Cone, Nov 20, 2007
  4. Rexx Magnus

    Rexx Magnus Guest

    That's entirely possible. When I got the car, the fuel gauge didn't
    work properly - turned out it was corrosion on the pins for the
    connector to the console. I cleaned it up and it worked fine. The
    garage I bought it of had fitted another console, but that didn't
    work, which led me to check out the connector.
    Now that it does work, I'm just wondering if it's got totally the
    wrong display in it. The rpm display on the spare console doesn't work
    Rexx Magnus, Nov 20, 2007
  5. Rexx Magnus

    Brian Guest

    There is a sensor on rtheback of the crankcase, it reads the rotation of the
    flywheel. Difficult to see, but if you look up from underneath at the part
    of the engine to which the gearbox is bolted, above the driveshafts, you
    should see it. It needs to be close to the flywheel, and if has moved it
    will not work. It might have failed internally too. The connection from it
    goes across the top of the bell housing to the front of the block.
    Brian, Nov 20, 2007
  6. Rexx Magnus

    Chrs Guest

    These are a sod of a job todo. you got a 10mm bolt that holds it in.and
    you can do them from the top of the engine bay, well i done mine from
    the top and it took about 20 mins to do , but the part is not cheap. it
    has 3 wires green, white, and black,or it could be like mine
    red.black.yellow.took time to find out which way wires went but that
    was easy to do ,
    Chrs, Nov 20, 2007
  7. Rexx Magnus

    harvestmouse Guest

    I disturbed mine when unbolting the gearbox to get at the clutch on an
    XUD 1.9 diesel non-turbo. I tightened it up again but I guess the
    slop was to adjust it for something. Does anyone know if this is for
    adjustment and if so, how to adjust it?
    harvestmouse, Nov 21, 2007
  8. Rexx Magnus

    Chrs Guest

    As long as u pushed it right in hard it should still work as i tryed
    pulling mine out half way to see if it still works but it did not so
    its got to go all the way.
    Chrs, Nov 21, 2007
  9. Rexx Magnus

    Brian Guest

    Yes it has to go right in. The new ones have a castellation on the end, and
    you push it in until it hits the flywheel. The castellations give the right
    gap. They wear down in use, so your old one has probably got a smooth end.
    Ideally this should just clear the flywheel.
    Brian, Nov 21, 2007
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.