Can't resolve pedal pulsing
Moderators: User administrators, Moderators
Can't resolve pedal pulsing
A common problem I know, and I've read through previous threads.
Had the initial problem after having the rear brake shoes changed and the handbrake tightened. Took it back to the garage but whatever they did failed to sort the problem and decided to try another garage that I use for my car. The guy here stripped down the rear brakes and re-set everything - he said the handbrake was all over the place and the whole thing was a bit of a mess. Drums looked good, apart from a slight nibble on the centre hole where he said it looked like it had been put on a bit too roughly. He didn't think it was an issue though.
Took the van for a drive from Bristol to Stroud and the pedal pulsing had gone! Great news until after about 30 minutes I could smell the brakes heating up and had to pull in to the services, where they were literally smoking! I obviously took it back and the mechanic was great, said he knew he'd pushed it a bit to get a good hold on the handbrake and took a couple of clicks off on both sides.
No more binding but the pulsing is back worse than before! Confused by this as although a smidge too close and binding he had cured the pulsing the first time - how can taking a couple of clicks off both sides lead to it returning so badly?!
Any help before he has another look would be much appreciated.
Had the initial problem after having the rear brake shoes changed and the handbrake tightened. Took it back to the garage but whatever they did failed to sort the problem and decided to try another garage that I use for my car. The guy here stripped down the rear brakes and re-set everything - he said the handbrake was all over the place and the whole thing was a bit of a mess. Drums looked good, apart from a slight nibble on the centre hole where he said it looked like it had been put on a bit too roughly. He didn't think it was an issue though.
Took the van for a drive from Bristol to Stroud and the pedal pulsing had gone! Great news until after about 30 minutes I could smell the brakes heating up and had to pull in to the services, where they were literally smoking! I obviously took it back and the mechanic was great, said he knew he'd pushed it a bit to get a good hold on the handbrake and took a couple of clicks off on both sides.
No more binding but the pulsing is back worse than before! Confused by this as although a smidge too close and binding he had cured the pulsing the first time - how can taking a couple of clicks off both sides lead to it returning so badly?!
Any help before he has another look would be much appreciated.
1985 Super Viking with Subaru EJ22 (formerly 1.9 petrol DG)
1981 air-cooled 2.0 high top
1981 air-cooled 2.0 high top
- Dazco
- Registered user
- Posts: 2299
- Joined: 18 Dec 2011, 15:44
- 80-90 Mem No: 10544
- Location: Sheffield. 1984 autosleeper trooper. 1.9 petrol called Jambo
Re: Can't resolve pedal pulsing
I had a similar problem with the pedal pulsing , I ended up doing a full rebuild on the rear drum assemblies.
New drums, shoes , springs , rear plates( probably not necessary but they were shot) slave cylinders and flexi hoses. Pulsing gone. An extreme cure I know but I think It was well worth it considering the age of the van etc.
New drums, shoes , springs , rear plates( probably not necessary but they were shot) slave cylinders and flexi hoses. Pulsing gone. An extreme cure I know but I think It was well worth it considering the age of the van etc.
Auto sleeper fitted with EJ 20 subaru lump
- Titus A Duxass
- Registered user
- Posts: 5778
- Joined: 24 Nov 2007, 08:22
- 80-90 Mem No: 4475
- Location: Cologne
- Oldiebut goodie
- Registered user
- Posts: 7293
- Joined: 18 Apr 2008, 01:19
- 80-90 Mem No: 11135
- Location: Eastern Angle
Re: Can't resolve pedal pulsing
I had it after one rear brake partially seized on - upon closer inspection the drum had warped. New drums were cheap enough + replace cylinders etc as above.
1.6D 2019 VW T-Cross
200hp VW T6
1̶Y̶ ̶1̶9̶8̶7̶ ̶H̶i̶-̶t̶o̶p̶ ̶C̶a̶r̶a̶v̶e̶l̶l̶e̶
5̶0̶8̶d̶ ̶M̶e̶r̶c̶
200hp VW T6
1̶Y̶ ̶1̶9̶8̶7̶ ̶H̶i̶-̶t̶o̶p̶ ̶C̶a̶r̶a̶v̶e̶l̶l̶e̶
5̶0̶8̶d̶ ̶M̶e̶r̶c̶
- 937carrera
- Registered user
- Posts: 3599
- Joined: 05 Apr 2015, 19:29
- 80-90 Mem No: 16333
- Location: N Yorks.
Re: Can't resolve pedal pulsing
Can you feel the pulsing through the pedal with light pressure ?
If so it could be warped front discs, or a distorted rear drum.
As you say it was OK for a while, then I would supect one of the rear drums isn't quite central, espacially after reading your first post which suggets that the centre of the drum,or possibly the hub is work..
If so it could be warped front discs, or a distorted rear drum.
As you say it was OK for a while, then I would supect one of the rear drums isn't quite central, espacially after reading your first post which suggets that the centre of the drum,or possibly the hub is work..
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine
Re: Can't resolve pedal pulsing
Thanks for replies all. Have checked wheels and tyres and all okay.
A whole refurb does seem drastic but might be the solution if the mechanic can't sort it on his next go. It was fine before the change of shoes and fiddling with the handbrake which makes me think it's a set up problem rather than parts.
Currently it pulses at all speeds. Previously it was pulsing mainly when coming down from 40mph+ and decreased the more pressure you applied.
Have priced up a few parts from Brickwerks whom I trust totally. Big difference in price between genuine and aftermarket drums and back plates. Anyone any experience of either/both. I know they say pay cheap pay twice but also know Brickwerks wouldn't stock stuff that wasn't of good quality.
A whole refurb does seem drastic but might be the solution if the mechanic can't sort it on his next go. It was fine before the change of shoes and fiddling with the handbrake which makes me think it's a set up problem rather than parts.
Currently it pulses at all speeds. Previously it was pulsing mainly when coming down from 40mph+ and decreased the more pressure you applied.
Have priced up a few parts from Brickwerks whom I trust totally. Big difference in price between genuine and aftermarket drums and back plates. Anyone any experience of either/both. I know they say pay cheap pay twice but also know Brickwerks wouldn't stock stuff that wasn't of good quality.
1985 Super Viking with Subaru EJ22 (formerly 1.9 petrol DG)
1981 air-cooled 2.0 high top
1981 air-cooled 2.0 high top
- Dazco
- Registered user
- Posts: 2299
- Joined: 18 Dec 2011, 15:44
- 80-90 Mem No: 10544
- Location: Sheffield. 1984 autosleeper trooper. 1.9 petrol called Jambo
Re: Can't resolve pedal pulsing
I used all cheap parts from Brickies with no problems . Been fine for last 24 months .
Auto sleeper fitted with EJ 20 subaru lump
Re: Can't resolve pedal pulsing
Cheers Dazco. Good to know as there’s quite a price difference!
1985 Super Viking with Subaru EJ22 (formerly 1.9 petrol DG)
1981 air-cooled 2.0 high top
1981 air-cooled 2.0 high top
- Dazco
- Registered user
- Posts: 2299
- Joined: 18 Dec 2011, 15:44
- 80-90 Mem No: 10544
- Location: Sheffield. 1984 autosleeper trooper. 1.9 petrol called Jambo
Re: Can't resolve pedal pulsing
Just to add, years ago I used cheap slaves from GSF, bleedin pants , seals blew within weeks . That's when I stopped using GSF car parts.
Auto sleeper fitted with EJ 20 subaru lump
Re: Can't resolve pedal pulsing
So having priced stuff up and the big differences are with the drums, back plates and cylinders. I'd appreciate any advice anyone has on whether to go genuine or not with some/all of these. What am I paying extra for? Is it longevity, performance or name?! Noticed the genuine back plates are thicker and finished differently but not sure what the consequence of this is. Cheers (and realise I'll probably get a range of views here!)
1985 Super Viking with Subaru EJ22 (formerly 1.9 petrol DG)
1981 air-cooled 2.0 high top
1981 air-cooled 2.0 high top
-
- Registered user
- Posts: 1808
- Joined: 10 May 2013, 11:59
- 80-90 Mem No: 13706
- Location: Central Scotland
Re: Can't resolve pedal pulsing
Thicker back plates will mean significantly greater service life. Thin ones will rot pretty fast. Cheap cylinders will fail fast. Drums, dunno. There was a post above saying they had bought brickies cheap drums and they were ok...
Have you ever seen an unhappy fool?
88 Transporter with hitop camper conversion, 1.6td.
88 Transporter with hitop camper conversion, 1.6td.
-
- Registered user
- Posts: 798
- Joined: 15 Oct 2006, 11:19
- 80-90 Mem No: 5533
- Location: rambler de oria, near albox,almeria,spain
Re: Can't resolve pedal pulsing
Whose going to do the work...?
I dont think, so I'm not[do I exist?]
1992 1600td [ jx ] syncro panel van[leisuredrive camper ]
1992 1600td [ jx ] syncro panel van[leisuredrive camper ]