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.
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.
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..........
hth
bob
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