Rear brake pulsing

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zoona
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Rear brake pulsing

Post by zoona »

Hi

I have an odd problem, and wanted to get some advice.

We had a rear bearing that needed replacing. Took it to local place after ordering the parts from brickwerks (so no random dodgy parts were used).

These were replaced on both sides.

When the brakes were tested after that (it is the law that every time to touch the brakes, they need to be officially tested apparently) there was a pulsing sensation (similar to warped brakes) from the rear. Very noticable when driving, really unpleasant.

Suggestion was to replace the rear brakes as they were pretty old anyway.
Did that, and it was the same.


In discussion with the garage, it has been suggested to replace the bearing housing. While the inner bearing face was good, the rear face where it meets the suspension arm was very corroded. (they did tell me about this at the time)


I have used this garage a few times, and while they are not VW specialists, they do deal with classics and they run a Dokka as their works van - so they do know them.
I have always been very happy with them, and they will always to take the time to talk through the problems with me - this is not a case of "just replace then next bit and see if it works"

Two questions:

  1. Does this sound like the sensible next step, or do you have any other suggestions first?
  2. Do you know where I can get rear bearing housings from? Everywhere seems to be out of stock...
1987 Westfalia High Top Joker. DG SP
1993 MX5 turbo track car

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maxstu
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Re: Rear brake pulsing

Post by maxstu »

Hi Ian, hope you are well?

Only the shoes replaced? If so, the drums may have worn oval shape mirroring the old shoes. New shoes. New drums. Otherwise lm not certain. Someone else with more knowledge will likely help you.

As for rear bearing, was there much play in rear wheel? If so on which plane? Clockface check 9-3, 12-6 or whole wheel in and out? There is alway a small bit of play. It is designed so.

Regards
Stuart
MaxStu
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maxstu
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Re: Rear brake pulsing

Post by maxstu »

Rear bearing housing. Used. Try Irishkeet, Mick NWVW, Bene or Davidoft. But not particularly in that order.
MaxStu
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zoona
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Re: Rear brake pulsing

Post by zoona »

Hi

Not sure about play, but I could hear and feel it. And mechanic and I test drove and he confirmed what i thought.

Replaced shoes and drums. Twice...

Only logical thing now is that face between the bearing housing and the suspension arm, as it was corroded.
The main problem is that labour costs here mean it is more sensible to replace everything (the housing, the stub Axel, the hub etc), than find out later that it all needs to come off again to replace another part.
Finding difficult to get parts though...
1987 Westfalia High Top Joker. DG SP
1993 MX5 turbo track car

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zoona
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Re: Rear brake pulsing

Post by zoona »

maxstu wrote: 23 Nov 2020, 17:04 Rear bearing housing. Used. Try Irishkeet, Mick NWVW, Bene or Davidoft. But not particularly in that order.

Thanks. Trying to avoid second hand at the moment... Just to eliminate problems. All comes down to crazy labour costs...
Last edited by zoona on 23 Nov 2020, 17:20, edited 1 time in total.
1987 Westfalia High Top Joker. DG SP
1993 MX5 turbo track car

keynsham1
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Re: Rear brake pulsing

Post by keynsham1 »

Did you replace the drums? I replaced mine once as a matter of course even though the originals were not badly worn and still serviceable. I bought new drums from JK and I had the same issue. Turned out the brand new ones weren't round! I just put the old ones back with new shoes and it has been fine ever since! Aftermarket parts are a gamble. If they are cheap, there is a reason!!!

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zoona
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Re: Rear brake pulsing

Post by zoona »

keynsham1 wrote: 23 Nov 2020, 17:15 Did you replace the drums? I replaced mine once as a matter of course even though the originals were not badly worn and still serviceable. I bought new drums from JK and I had the same issue. Turned out the brand new ones weren't round! I just put the old ones back with new shoes and it has been fine ever since! Aftermarket parts are a gamble. If they are cheap, there is a reason!!!

Yeah, replaced both. And tried old ones again.
Pretty sure it is the bearing replacement that was the problem.

Parts were from brickwerks, so going to be about as good as you can get.
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maxstu
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Re: Rear brake pulsing

Post by maxstu »

zoona wrote: 23 Nov 2020, 17:19
keynsham1 wrote: 23 Nov 2020, 17:15 Did you replace the drums? I replaced mine once as a matter of course even though the originals were not badly worn and still serviceable. I bought new drums from JK and I had the same issue. Turned out the brand new ones weren't round! I just put the old ones back with new shoes and it has been fine ever since! Aftermarket parts are a gamble. If they are cheap, there is a reason!!!

Yeah, replaced both. And tried old ones again.
Pretty sure it is the bearing replacement that was the problem.

Parts were from brickwerks, so going to be about as good as you can get.


For the pair...

https://burleymotorsports.net/product/b ... g-housing/
MaxStu
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zoona
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Re: Rear brake pulsing

Post by zoona »

maxstu wrote: 23 Nov 2020, 17:38
For the pair...

https://burleymotorsports.net/product/b ... g-housing/

Ooh. Good find. Thanks very much for that.
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maxstu
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Re: Rear brake pulsing

Post by maxstu »

If you have family or friends' in US then import tax may be dismissed. Or take a chance getting posted direct.

Consider hub complete with bearing included. Then use Jed's (Campervanculture) video guide to hub exchange. DIY job.

Bon Chance!
MaxStu
1989 DJ 2.1 Auto Leisuredrive rusty bucket.
"Blissfully happy in your presence".

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zoona
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Re: Rear brake pulsing

Post by zoona »

I have been searching since the last post to get hold of some.

Burley are not responding to emails or phone
Campervanculture said they would get them in december, but don't seem to have got them yet.

I contacted the manufacturer of the ones that campervanculture use and found a supplier in Germany who have them in stock.

https://tk-carparts.de/radlagergehaeuse ... 51501253_1

I would normally wait for Campervanculture to get them as they have always been very helpful, but I just can't wait any more and I am not sure I trust delivery from the UK at the moment (my in-laws wanted to send something to us and the post office refused to take it as they couldn't guarantee that it would actually make it. Take back control...)

Anyway, if you need some - they apparently have some. Let's see if I can get them in time to fit for the test...
1987 Westfalia High Top Joker. DG SP
1993 MX5 turbo track car

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maxstu
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Re: Rear brake pulsing

Post by maxstu »

Good bit of info, Ian.

They seem reasonably priced. That includes bearings too by looks of photos.

Good luck and happy new year matey. :ok
MaxStu
1989 DJ 2.1 Auto Leisuredrive rusty bucket.
"Blissfully happy in your presence".

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