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 Post subject: Re: Big problem.
PostPosted: Wed Jun 04, 2014 1:11 pm 
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Baconsdozen wrote:
If its possible (even remotely) for a brake disc to be expelled from the caliper assembly then this is a massive design flaw and on a vehicle supposedly specifically designed to carry fee paying passengers even more so.


It crossed my mind to actually write to Peugeot......but would I get the truth :-k

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 Post subject: Re: Big problem.
PostPosted: Wed Jun 04, 2014 2:44 pm 
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cabby john wrote:
Sorry guys I am not trying to bore you to death on this but it is a ridiculous situation.

One final thought.

What if the discs were only fitted on the cab, on the inside only, on both wheels.......NO outside disc at all on both front wheels!

1. Because both sides are the same......is it likely that there would be no pull to one side or the other as would happen if one of the pads were worn?

2. Would the outside of the caliper actually travel the extra distance to the disc side that is empty Or would it stop just before disc contact?

The only logic that I can come up with is that an apprentice/whoever has done the job and became distracted, consequently not actually fitting a "Set" to both wheels, only singular.

The inside pads that were fitted were showing excess wear for the mileage done, this to me indicates that more pressure than usual was being used to stop the cab (I am not generally a heavy brake user), also taking into account there was more distance to the actual brake bite than usual. If the caliper travels the total distance to the disc (without any part including the metal base,and would score it) then I am out of ideas. I am thinking that it will score it with the actual pad worn out because the metal base is still there...........without the metal base would the caliper not reach the disc?


Worn to the metal pads would grate like hell.......and if they Didn't youd still have some working meat on them, maybe you've boiled the brake fluid at some point and it has little bubbles of air running through it.


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 Post subject: Re: Big problem.
PostPosted: Wed Jun 04, 2014 5:26 pm 
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Baconsdozen wrote:
If its possible (even remotely) for a brake disc to be expelled from the caliper assembly then this is a massive design flaw and on a vehicle supposedly specifically designed to carry fee paying passengers even more so.


erm, it wasnt though was it.....its a van by design

i dont think a pad can fall out

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 Post subject: Re: Big problem.
PostPosted: Wed Jun 04, 2014 5:30 pm 
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all pads i know of have lugs each end to locate them in the pad carrier, the piston cant retract - it can only go one way with wear (of the pads), even if the pad is down to the metal you have to use a tool (or G clamp) to wind the piston back then unbolt the carrier to get the pad out

nope, a pad cant fall out

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 Post subject: Re: Big problem.
PostPosted: Wed Jun 04, 2014 5:55 pm 
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wannabeeahack wrote:
Baconsdozen wrote:
If its possible (even remotely) for a brake disc to be expelled from the caliper assembly then this is a massive design flaw and on a vehicle supposedly specifically designed to carry fee paying passengers even more so.


erm, it wasnt though was it.....its a van by design

i dont think a pad can fall out


Sorry should really read ..................a vehicle specifically being used to carry.....
It's still a massive design flaw (if its possible to lose a pad completely). The noise before the pads had down to the metal would have been horrendous and surely these modern vehicles have warning lights anyway?. I'd be tempted to write to Peugeot,let them sort it out with the garage.

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 Post subject: Re: Big problem.
PostPosted: Wed Jun 04, 2014 6:49 pm 
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Baconsdozen wrote:
wannabeeahack wrote:
Baconsdozen wrote:
If its possible (even remotely) for a brake disc to be expelled from the caliper assembly then this is a massive design flaw and on a vehicle supposedly specifically designed to carry fee paying passengers even more so.


erm, it wasnt though was it.....its a van by design

i dont think a pad can fall out


Sorry should really read ..................a vehicle specifically being used to carry.....
It's still a massive design flaw (if its possible to lose a pad completely). The noise before the pads had down to the metal would have been horrendous and surely these modern vehicles have warning lights anyway?. I'd be tempted to write to Peugeot,let them sort it out with the garage.

the vehicle is 8 years old, I doubt that peugeot will be interested. I would just tell the garage to sort it out because they fitted them in the first place. if they refuse, straight to trading standards.

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 Post subject: Re: Big problem.
PostPosted: Wed Jun 04, 2014 9:03 pm 
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grandad wrote:
the vehicle is 8 years old, I doubt that peugeot will be interested. I would just tell the garage to sort it out because they fitted them in the first place. if they refuse, straight to trading standards.



is there any record of a Scudo pad falling out before anywhere......ive not heard of it occurring

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 Post subject: Re: Big problem.
PostPosted: Thu Jun 05, 2014 1:39 am 
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Quote:
I would just tell the garage to sort it out because they fitted them in the first place. if they refuse, straight to trading standards.



As already mentioned that has already been done...sorted. Unfortunately no real answers coming out of it.

Quote:
maybe you've boiled the brake fluid at some point and it has little bubbles of air running through it.


Tbh I do not feel that when the rear brakes were done that the brake fluid was properly primed/bled, maybe it was done but not entirely 100%. As I said they use a suction system, so looking at the diagram provided by Wannabee I feel that it is possible to bleed the brakes but to also get an airlock if not done systematically. I.E both back cylinders (facing the vehicle) in my opinion should be bled/primed by a rear right to left front wheel and rear left to right front wheel bleed and that should eradicate an air lock! If however it was pulled through entirely from one rear cylinder, the mechanism/pipes could allow an airlock without actually knowing it.

If there was an airlock of a fashion, then maybe that leads to the brake pedal travelling too far, in turn the constant additional pressure being applied to the brakes did cause the brakes to wear excessively and indeed caused the fluid to over heat and blow the seals on the cylinders - as to where the front outside pads have gone I am lost, as the holding clips were still intact.

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 Post subject: Re: Big problem.
PostPosted: Thu Jun 05, 2014 10:27 pm 
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Quote:
If there was an airlock of a fashion, then maybe that leads to the brake pedal travelling too far, in turn the constant additional pressure being applied to the brakes did cause the brakes to wear excessively and indeed caused the fluid to over heat and blow the seals on the cylinders - as to where the front outside pads have gone I am lost, as the holding clips were still intact.


having air in the system just means you have to pump the pedal to get pressure, the friction material wont start to wear till the pressure is up no matter how many time you pump the pedal, theres no heat generated till the pad hits the disc, which it does the same WITH trapped air as when theres none.

i think your garage is filming Candid Camera

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 Post subject: Re: Big problem.
PostPosted: Fri Jun 06, 2014 8:22 am 
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Right from the word go,after a supposed brake repair the vehicle was sent out with excess brake travel. The "bedding in" comment is gibberish the reason for excess travel is bad adjustment,air in the system or other fault.
Do new vehicles (where nothing is 'bedded in' ) have pedals almost on the floor?
Air in the lines increases travel and reduces pressure in the system,it wont cause overheating and should not have been there in the first place.
As the garage can't even due the job properly in the first place any explanation I'd guess is merely to cover up their inability,incompetance and gross negligence.

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 Post subject: Re: Big problem.
PostPosted: Fri Jun 06, 2014 12:07 pm 
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Quote:
Do new vehicles (where nothing is 'bedded in' ) have pedals almost on the floor?


Excellent point =D>

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 Post subject: Re: Big problem.
PostPosted: Fri Jun 06, 2014 2:14 pm 
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Baconsdozen wrote:
Right from the word go,after a supposed brake repair the vehicle was sent out with excess brake travel. The "bedding in" comment is gibberish the reason for excess travel is bad adjustment,air in the system or other fault.
Do new vehicles (where nothing is 'bedded in' ) have pedals almost on the floor?
Air in the lines increases travel and reduces pressure in the system,it wont cause overheating and should not have been there in the first place.
As the garage can't even due the job properly in the first place any explanation I'd guess is merely to cover up their inability,incompetance and gross negligence.


^^^What he said^^^

Or in plainer language, they f*ck*d the job up and the rest is just bullshit to cover their arses :oops:

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 Post subject: Re: Big problem.
PostPosted: Fri Jun 06, 2014 2:46 pm 
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gusmac wrote:
Baconsdozen wrote:
Right from the word go,after a supposed brake repair the vehicle was sent out with excess brake travel. The "bedding in" comment is gibberish the reason for excess travel is bad adjustment,air in the system or other fault.
Do new vehicles (where nothing is 'bedded in' ) have pedals almost on the floor?
Air in the lines increases travel and reduces pressure in the system,it wont cause overheating and should not have been there in the first place.
As the garage can't even due the job properly in the first place any explanation I'd guess is merely to cover up their inability,incompetance and gross negligence.


^^^What he said^^^

Or in plainer language, they f*ck*d the job up and the rest is just bullshit to cover their arses :oops:

This may be the only time I ever agree with you. :shock:

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 Post subject: Re: Big problem.
PostPosted: Fri Jun 06, 2014 8:02 pm 
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Pads do have to bed in, especially when the discs arent changed BUT the extra pedal movement after fitting new pads is just the pistons being pushed back to the contact point with the pads, the pistons get wound right back into the calipers too facilitate pad remove, which further highlights the improbability of pads ejecting themselves

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