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-   -   Front ABS Sensor Removal (https://www.the75andztclub.co.uk/forum/showthread.php?t=298454)

Kenneth Smith 17th August 2019 16:23

Front ABS Sensor Removal
 
Hi, I have tried to drill out my ABS Sensor (front, Drivers side) and have managed to get to the shiney bit (presumably the Sensor Tip) and am a bit wary about going further. Need advice as to best method of removing the last bit of Sensor without hopefully not stripping the whole Hub assembly. If Hub has to be stripped then best way to carry this out. Regards Ken

Mike Noc 17th August 2019 20:30

Carefully pilot drill through the end and screw a long wood screw into it and pull it out with a mole wrench.

Worked for me. :}

Arctic 17th August 2019 20:32

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Originally Posted by Kenneth Smith (Post 2755658)
Hi, I have tried to drill out my ABS Sensor (front, Drivers side) and have managed to get to the shiney bit (presumably the Sensor Tip) and am a bit wary about going further. Need advice as to best method of removing the last bit of Sensor without hopefully not stripping the whole Hub assembly. If Hub has to be stripped then best way to carry this out. Regards Ken


Hi Kenneth.
What you should have done was drill a 3ml hole and then screw in a bolt or wood screw and prise out the stuck ABS sensor.

If you can see something shiney then that could be the bearing it's self, how far in have you gone and what size drill bit you used.

Once you do get it out, the hole will still need to be cleaned out carefully, using a file always hoovering the debris as you go.

PS Mike you beat me to it :D

Kenneth Smith 17th August 2019 21:48

Hi Artic, thank you very much for your advice .I tried the 3mm drill and screw idea but the Sensor wouldn't budge, just kept pulling screw out with no Sensor. Judging by depth of hole (which is now 10mm dia.) I am at the top of actual Sensor which must be metal of some sort. Regards Ken

RogerHeinz57 17th August 2019 22:21

While I understand the technique of the screw through the centre of the sensor, I have yet to get any success from such process to write home about.
Fortunately I have managed to change quite a few and only had a couple require drilling etc.
My theory is : If the couple of components are removed IE: Hub nut, lower drop link joint, lower ball joint to hub carrier, track rod end, the drive shaft can easily be freed off from the hub carrier, the strut can then be rotated for tool enter inside next to the bearing where the sensor tip protrudes. Assuming the sensor has indeed failed and not required for further service it won't matter I guess how it gets removed.
Other reasons for the process advantages include, clearing all of the debris out of the bearing area, a decent clean of the tube where the replacement sensor will go, less chance of potentially damaging bearing casing and finally - when drilling a hole, then expanding the sensor diameter within the tube it is fitted to with a screw expected to grip tightly to the offending broken piece, I would estimate that the sensor body would most likely try to expand against the tube walls giving rise to further efforts required to extract parts individually rather than in one piece using the method I now use for stuck solid ones.
The efforts in undoing the components I suggest will take less time, stand less risks to other components with no faults, and considerably less patience testing !

I expect there to be arguments about my practice in this as so many accept that they always have the worst ever sensor to remove, and I know nothing about the subject at all, and that established procedures are infinitely superior to mine, but I have tried many of the different practices, and find mine to be more successful and less stressful to complete.

I hope the OP has a successful outcome !

Kenneth Smith 18th August 2019 17:44

Hi, Managed to remove the T50 Torx screw holding Hub to Brake Disc
and managed to get the Drive Shaft nut off but can't move the Hub from Spline and can't move the 3 little bolts holding the Back Plate in position. Any ideas please. Thanks Ken


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