Pulsing Brake

Technical questions and answers about the Mazda Bongo

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mister munkey
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Post by mister munkey » Thu Jan 24, 2008 12:09 am

Colin Lambert wrote: I would never leave an automatic in PARK only on the road in case someone ran it up the back , that would break the gearbox and push it into what ever was in front of it.
To be honest Colin, if that happened to mine, the broken gearbox would be at the very bottom of my list of worries.

There is no logical reason to have a handbrake on an auto-box as far as I can see. I've only ever had grief at MOT time for handbrake adjustment on something I never use.


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Post by dandywarhol » Thu Jan 24, 2008 12:17 am

Mr M - part number 19 - 1701 is all you've got to keep your pride and joy from running away if/when it shears. It is ok to park on the level or VERY slight hill without the handbrake but any more than that and you're putting a helluva load (2 tonne weight * inclination on that tiny Pawl :shock:

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Post by mikeonb4c » Thu Jan 24, 2008 12:30 am

I've found my handbrake efficiency has come up from poor to good with a bit of adjustment and making a point of putting it on even when at traffic lights. I've not had any binding problems, whereas my Nissan Sunny was very prone to them. I'd say overall 'Use it or lose it' (in every sense) but I think chocks and handbrake off when parked up long term is a reasonable thing to do if worried :roll:
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Post by bighairypict » Thu Jan 24, 2008 12:32 am

dandywarhol wrote:Mr M - part number 19 - 1701 is all you've got to keep your pride and joy from running away if/when it shears. It is ok to park on the level or VERY slight hill without the handbrake but any more than that and you're putting a helluva load (2 tonne weight * inclination on that tiny Pawl :shock:
curiously enough the part shares its serial number with the USS Enterprise :shock:

what is 2 tonnes compared to a starship? :lol:
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Post by The Great Pretender » Thu Jan 24, 2008 12:39 am

BUGGER...........will have to stop using it for hand brake turns sliding into tiny parking spaces. :(
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Post by bongomaan » Thu Jan 24, 2008 12:43 am

This way it ensures nop strain on the gearbox.
Leaving the hand brake on will not cause any pulsing as the handbrake on a Bongo is by DRUM & shoes nothing to do with the discs and pads is my baby unusual cos she has discs on her rear end???
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Post by The Great Pretender » Thu Jan 24, 2008 12:47 am

[

what is 2 tonnes compared to a starship? :lol:[/quote]

Depends if its on your foot. :cry:
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Post by mister munkey » Thu Jan 24, 2008 12:50 am

Anyone got a list of part numbers for a rear & front impact damage replacement, including bumpers, wings, bonnet, rear door assembly, grill, steering & suspension set-ups, complete light assemblies, all ancillary underparts, etc.

Just so I can be really prepared?

Seriously though, point taken.


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Post by bongomaan » Thu Jan 24, 2008 12:53 am

no just looked definitely discs .
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Post by The Great Pretender » Thu Jan 24, 2008 12:57 am

mister munkey wrote:Anyone got a list of part numbers for a rear & front impact damage replacement, including bumpers, wings, bonnet, rear door assembly, grill, steering & suspension set-ups, complete light assemblies, all ancillary underparts, etc.

Just so I can be really prepared?
Do you want an accountant (the price of it all and the value of nothing)?
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Post by bighairypict » Thu Jan 24, 2008 1:40 am

The Great Pretender wrote:
bighairypict wrote: what is 2 tonnes compared to a starship? :lol:
Depends if its on your foot. :cry:
....less weight in starship NCC 1701 due to zero gravity in space :?

....even if it was on your foot, in space no one can hear you scream :lol:
Colin Lambert

Post by Colin Lambert » Thu Jan 24, 2008 7:11 am

Bongomaan.
I was lucky I never had any brake problems so did not have to look. But I think you will find the drums inboard of the discs i:e: behind them . therefore you will have to crawl under and look from inside the wheel. You have discs at the front & rear to stop you and drums at the rear to keep you stopped. It is a rediculously unnecessary system. But that is what they do for some reason.. It is the only car I have ever come across that uses this system.
As long as you never use the handbrake to actually slow the vehicle they will never wear out and the brake shoes should last until they die of old age. Evenually the adhesive that bonds the friction lining to the shoe itself cracks up and the lining comes away.
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Post by last_tuesday » Thu Jan 24, 2008 1:02 pm

Fitting discs all round , then having a drum handbrake system at the rear does seem a bit odd but the Bongo isn't alone in having such a system. The Saab 9-5 & 9-3 are the same.

Saab managed for years with discs all round and a disc handbrake system, then changed when they introduced the 9-5. No doubt as a result of being forced to raid General Motors parts bin.

It would seem to me that having a completely separate handbrake mechanism is not only more expensive to manufacture and maintain but , as a separate system, more inclined to suffer from problems.

With regard to handbrake use though. I would have thought it should always be used. There are parts of the world where it is known as a parking brake after all.
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Post by dandywarhol » Thu Jan 24, 2008 1:13 pm

I think it's a pretty simple way of doing it Mr L, the inside of the disc is used as a drum, the unit is kept out of the way of dust/water/dirt and, as you say won't wear out. It's a parking brake after all. Volvo and BMW have used the system for yonks :)
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Post by mikeonb4c » Thu Jan 24, 2008 1:14 pm

Colin brings up an interesting point i.e. what seems to eventually fail with the handbrake linings. I suspect (though don't know) that using them may actually increase lining longevity through ensuring the lining is regularly compressed onto the brake shoe. Leaving the parking brake on for long periods when the car is not in use may have the reverse effect. I reckon you should use the parking brake just as much as you would in any car (including traffic light stops etc.). This might include chocking the wheels and leaving it off for long periods where the car is not driven. As Colin says, you are very unlikely to ever wear it out in normal use unless you use it for braking when on the move.
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