Freelander 1 2002 TD4 ABS sensor questions

Hi - mid back axle overhaul (wheel bearings, diff seals & mounts, wheel cylinders drums shoes and fitting kit) and I've hit a snag, the ABS rings I've ordered don't fit the shafts, or the hubs. The rings are 93mm, the bore in the hub is 92.5mm id, the rings ID is way larger than the shafts OD, where the shaft at the gator is 74mm, more curiously the hole in the hub body for the sensor is at one of the reduced diameter sections, it actually comes through the step that the bearing rests on which is about 74mm ID. When I removed the shafts they appeared to have the remains of a slotted ring just beyond the gator before the diameter tapers down towards the spline.


I thought this was the ABS ring, after I needlegunned all that cr@p off it I'm left with a 74mmOH section.


You can see the sensor hole in the bottom of the reduced diameter section at roughly 4 o'clock in this picture.


Blue plug 2 pin ABS sensors.

The vin ends in 12A-+-+-+ with numbers in the positions of the +/-'s (I'm not posting my vehicles complete vin on a public forum)

Do these point to my vehicle having later magnetic bearing ABS? The bearings I have removed show zero signs of magnetism? I'm genuinely confused now, do I need magentic bearings? Should I be able to detect the magentism in the bearings by means such as trying to lift a screw off the workbench and at least seeing it tugging if not lifting the screw?

Do I need to get special bearings? Or do I need to get special sensor rings with an ID of around 57.6mm and OD of <71.9mm?

2002 was the change year for abs but blue plug is magnetic bearings and sensors held in with one bolt rather than a push fit in the hub.

Bearings should be marked up 'abs side' but magnets are not very strong. Not sure if you can feel them. No reluctance rings should be fitted. They need to be the correct bearing the correct way around!!

I have a detailed thread on the differences, will post link.

Have a read and check out photos here.
https://www.landyzone.co.uk/land-rover/abs-reluctor-ring.348438/

Search not working again had to trawl!!!!

Thanks @andyfreelandy - that makes sense and I now know it is magnetic bearings I need to get, I am still puzzled as to what the crusty gubbins on the shaft were, I'm presuming its a form of seal, does anyone know the part number for that seal?

No seal. Bearing is sealed each side.
Wow, that is rusty. It could have been an early shaft and the reluctor ring has rotted off.
I'd find a car park space without wheels dangling in the sea!

Jayridium said:

Thanks @andyfreelandy - that makes sense and I now know it is magnetic bearings I need to get, I am still puzzled as to what the crusty gubbins on the shaft were, I'm presuming its a form of seal, does anyone know the part number for that seal?

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I think that’s flinger - any water running down the shaft gets flung away rather than dribbling down into the bearing.

@andyfreelandy that rust is ‘normal for Scotland’.

Cheers lads - but Guinea is right, such rust is the norm for scotland, we get crazy amounts of salt thrown on our roads, and it doesnt help that I live on the coast of the north sea, so there is a tonne of salt in the air. I can wash a car, stop for a coffee afterwards, and before the water has dried off thec ar the disks are orange, no hint of silver :-(

At one point I had two disco ones, a 1990 v8 offroader originally from yorkshire, the other a 300tdi daily driver local car had been up here all its days. The 300tdi had about a year in the workshop to make its body solid, and i had already done the body crossmember the previous year, whereas the 1990 yorkshire motor has never seen a welding torch for anything other than making an exhaust and welding on a fuel tank guard. I know of this climate induced corrosive effect, so I usualy buy my vehicles from deep south. The exceptions are the 300tdi disco we had and the freelander, the hippo has been in the family since new, my father in law ordered it as a van in 2002 built by special vehicles, we bought it from him in 2006, had it since. The 300tdi came up at reasonable money when I was financially flush, but recovering from surgery and had most of my cars off the road needing big mechanical things done to them so bought this as an interim car, but the wife loved it so we kept it for four years.

The purpose of the workscope on the freelander the now is to get ahead of the game with any mechanical issues it might have looming, as it is at nigh on 160,000 miles, and has spent all of its 18 years up in north east Scotland, so I think that would count as arduos duty.

Still need to find a part number for that "flinger", front and back as I'm also doing the front bearings after I finish with the back end - I may even strip the front this weekend seeing as I'm going to be waiting on parts for the correct magnetic bearings to arrive, and it would be good to be able to mail order the "flingers" as well.

Think you'll find it doesn't exist.

Jayridium said:

Still need to find a part number for that "flinger", front and back as I'm also doing the front bearings after I finish with the back end

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There's no flinger and no need for one, as the shafts spin too slowly for it to be effective, and the bearings are sealed anyway.