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Honda Jazz Handbrake Adjustment

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Tom Burton

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Aug 12, 2013, 7:16:46 AM8/12/13
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Just doing a bit of work on SWIMBO's J 2004 Honda Jazz between the
showers, replacing a load of rotten metal collant pipes, bunper off the
lot :-(

Also need to adjust the Handbrake as it is plane spotting...

The car has rear disks and shoes is there adjustment available there as
the adjustment on the handbrake seems nearly used up... Shoes and disks
are 6months old.

Dave Plowman (News)

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Aug 12, 2013, 8:29:55 AM8/12/13
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In article <TpadnXnLCoqHWZXP...@bt.com>,
Is it a rear disc with concentric drum brake for the parking brake? I
dunno how Honda does it, but my BMW has adjusters for the shoes. And these
must be set correctly *before* messing with the cable adjustments - rather
than the other way round.

On the BMW, you can adjust the shoes without even removing the wheel -
just by removing a wheel bolt. The adjuster is accessible through that
hole. But other makes may well be different.

--
*Remember: First you pillage, then you burn.

Dave Plowman da...@davenoise.co.uk London SW
To e-mail, change noise into sound.

Tom Burton

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Aug 13, 2013, 10:03:46 AM8/13/13
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On 12/08/2013 13:29, Dave Plowman (News) wrote:
> In article <TpadnXnLCoqHWZXP...@bt.com>,
> Tom Burton <thomas...@freezingcoldmail.com> wrote:
>> Just doing a bit of work on SWIMBO's J 2004 Honda Jazz between the
>> showers, replacing a load of rotten metal collant pipes, bunper off the
>> lot :-(
>
>> Also need to adjust the Handbrake as it is plane spotting...
>
>> The car has rear disks and shoes is there adjustment available there as
>> the adjustment on the handbrake seems nearly used up... Shoes and disks
>> are 6months old.
>
> Is it a rear disc with concentric drum brake for the parking brake? I
> dunno how Honda does it, but my BMW has adjusters for the shoes. And these
> must be set correctly *before* messing with the cable adjustments - rather
> than the other way round.
>
> On the BMW, you can adjust the shoes without even removing the wheel -
> just by removing a wheel bolt. The adjuster is accessible through that
> hole. But other makes may well be different.
>


Too wet again to play today, but from what I remember the handbrake acts
on the main pads via a lever of some descripton on the bottom of the
caliper. Certainly no inner drum.

newshound

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Nov 24, 2015, 2:44:34 PM11/24/15
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Reminds me of the CX which had completely separate pads, about 25 mm
diameter, acting on the front disks.

Mrcheerful

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Nov 24, 2015, 4:00:37 PM11/24/15
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A Citroen rolled into my car one night, the handbrake had been applied
normally, but as it all cooled/hydraulic suspension sagged down, the
handbrake released enough for the car to go off on its own.

Chris Whelan

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Nov 24, 2015, 4:32:44 PM11/24/15
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Mrcheerful wrote:

[...]

> A Citroen rolled into my car one night, the handbrake had been applied
> normally, but as it all cooled/hydraulic suspension sagged down, the
> handbrake released enough for the car to go off on its own.

One of the earliest production cars to have all round disks was the MkII
Jaguar. The cable-operated handbrake activated separate callipers on the
rear disks. As they cooled, the brake became less effective.

They were notorious for rolling away, and anyone who drove one regularly
always left them in gear.

Chris

--
Remove prejudice to reply.

Adrian

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Nov 25, 2015, 3:49:46 AM11/25/15
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On Tue, 24 Nov 2015 21:00:59 +0000, Mrcheerful wrote:

>>> Too wet again to play today, but from what I remember the handbrake
>>> acts on the main pads via a lever of some descripton on the bottom of
>>> the caliper. Certainly no inner drum.

>> Reminds me of the CX which had completely separate pads, about 25 mm
>> diameter, acting on the front disks.

> A Citroen rolled into my car one night, the handbrake had been applied
> normally, but as it all cooled/hydraulic suspension sagged down, the
> handbrake released enough for the car to go off on its own.

Happens on anything with handbrake pads clamping a disk - especially
where they're on the front, since the disk gets hotter than the rear.
It's just that for a long time Citroen were just about the only
mainstream manufacturer to use disks all round, and one of the VERY few
to use front handbrakes. They needed to use front handbrakes, because the
wheelbase changed as the suspension sank.

Drum - the brake cools, the drum contracts, the handbrake grips tighter.
Disk - the brake cools, the disk contracts, the handbrake slackens.

There was a recall on the Xantia for cars going walkies as the disk
cooled - all that was done was the first couple of teeth on the handbrake
lever were removed, so that you were "encouraged" to pull the lever on
properly...

Mrcheerful

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Nov 25, 2015, 4:04:56 AM11/25/15
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On 25/11/2015 08:49, Adrian wrote:
> On Tue, 24 Nov 2015 21:00:59 +0000, Mrcheerful wrote:
>
>>>> Too wet again to play today, but from what I remember the handbrake
>>>> acts on the main pads via a lever of some descripton on the bottom of
>>>> the caliper. Certainly no inner drum.
>
>>> Reminds me of the CX which had completely separate pads, about 25 mm
>>> diameter, acting on the front disks.
>
>> A Citroen rolled into my car one night, the handbrake had been applied
>> normally, but as it all cooled/hydraulic suspension sagged down, the
>> handbrake released enough for the car to go off on its own.
>
> Happens on anything with handbrake pads clamping a disk - especially
> where they're on the front, since the disk gets hotter than the rear.
> It's just that for a long time Citroen were just about the only
> mainstream manufacturer to use disks all round, and one of the VERY few
> to use front handbrakes. They needed to use front handbrakes, because the
> wheelbase changed as the suspension sank.
>

Sinking suspension should not alter handbrake tension with a standard
sort of cable.
I had assumed that the front handbrake was more to do with the maximum
efficiency that could be obtained (ie the rear was too light) I seem to
remember that was the reason on the Commer 15cwt vans, they are the only
other thing I have encountered with front wheel handbrake.

Mrcheerful

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Nov 25, 2015, 4:07:27 AM11/25/15
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The other problem with the Jag was the handbrake was on the right,
meaning it was quite possible to disengage it accidentally as you got
out of the driver's seat.

Adrian

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Nov 25, 2015, 4:38:49 AM11/25/15
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On Wed, 25 Nov 2015 09:04:52 +0000, Mrcheerful wrote:

>> It's just that for a long time Citroen were just about the only
>> mainstream manufacturer to use disks all round, and one of the VERY few
>> to use front handbrakes. They needed to use front handbrakes, because
>> the wheelbase changed as the suspension sank.

> Sinking suspension should not alter handbrake tension with a standard
> sort of cable.

No, but if you leave it in gear (FWD) AND put the (rear) handbrake on
hard, you're not going to allow either set of wheels to rotate to allow
the wheelbase to change.

Simply demonstrated in any hydraulic Citroen, by sitting with your foot
on the brakes and moving the height lever to flat. Lots of creaking and
groaning, the front'll sink, but the back'll stay up - until you take
your foot off the brake, at which point it'll go down rapidly.

Mrcheerful

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Nov 25, 2015, 5:58:15 AM11/25/15
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OH, yes, I see what you mean, I had not considered that aspect, I
thought you meant that the cable would de-tension, sorry.
As to in gear and handbrake on (at each end) I expect that the engine
would slowly turn with the constant pressure and everything would settle.
I was a little surprised by my landrover slowly rolling away on a slope
despite being in low first. (I did fix the handbrake eventually, in
the mean time I parked against a kerb or used a chock)

Dave Plowman (News)

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Nov 25, 2015, 6:11:32 AM11/25/15
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In article <n33sn6$158$1...@speranza.aioe.org>,
Adrian <tooma...@gmail.com> wrote:
> Happens on anything with handbrake pads clamping a disk - especially
> where they're on the front, since the disk gets hotter than the rear.
> It's just that for a long time Citroen were just about the only
> mainstream manufacturer to use disks all round, and one of the VERY few
> to use front handbrakes. They needed to use front handbrakes, because the
> wheelbase changed as the suspension sank.

> Drum - the brake cools, the drum contracts, the handbrake grips tighter.
> Disk - the brake cools, the disk contracts, the handbrake slackens.

Oddly, the very best handbrake I had on any relatively modern car was a
Rover P6 with the swing caliper Girling brakes where the handbrake acted
on the rear pads. So it is possible to design a good handbrake with discs.

--
*It's not hard to meet expenses... they're everywhere.

Mrcheerful

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Nov 25, 2015, 6:53:09 AM11/25/15
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On 25/11/2015 11:05, Dave Plowman (News) wrote:
> In article <n33sn6$158$1...@speranza.aioe.org>,
> Adrian <tooma...@gmail.com> wrote:
>> Happens on anything with handbrake pads clamping a disk - especially
>> where they're on the front, since the disk gets hotter than the rear.
>> It's just that for a long time Citroen were just about the only
>> mainstream manufacturer to use disks all round, and one of the VERY few
>> to use front handbrakes. They needed to use front handbrakes, because the
>> wheelbase changed as the suspension sank.
>
>> Drum - the brake cools, the drum contracts, the handbrake grips tighter.
>> Disk - the brake cools, the disk contracts, the handbrake slackens.
>
> Oddly, the very best handbrake I had on any relatively modern car was a
> Rover P6 with the swing caliper Girling brakes where the handbrake acted
> on the rear pads. So it is possible to design a good handbrake with discs.
>


the modern way (mondeo and others) is to add a gbfo spring between the
hand brake lever and the cable, so the spring is always trying to pull
further on the cable.

Adrian

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Nov 25, 2015, 7:26:06 AM11/25/15
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On Wed, 25 Nov 2015 10:58:10 +0000, Mrcheerful wrote:

>>>> It's just that for a long time Citroen were just about the only
>>>> mainstream manufacturer to use disks all round, and one of the VERY
>>>> few to use front handbrakes. They needed to use front handbrakes,
>>>> because the wheelbase changed as the suspension sank.

>>> Sinking suspension should not alter handbrake tension with a standard
>>> sort of cable.

>> No, but if you leave it in gear (FWD) AND put the (rear) handbrake on
>> hard, you're not going to allow either set of wheels to rotate to allow
>> the wheelbase to change.
>>
>> Simply demonstrated in any hydraulic Citroen, by sitting with your foot
>> on the brakes and moving the height lever to flat. Lots of creaking and
>> groaning, the front'll sink, but the back'll stay up - until you take
>> your foot off the brake, at which point it'll go down rapidly.

> OH, yes, I see what you mean, I had not considered that aspect, I
> thought you meant that the cable would de-tension, sorry.
> As to in gear and handbrake on (at each end) I expect that the engine
> would slowly turn with the constant pressure and everything would
> settle.

Potentially, yes. But an autobox in park wouldn't.
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