Faulty Brakes 1984 gtv 2.0

Ian Jobbins wrote:

> At the risk of sounding a little niave, what actually makes the rear
> caliper piston retract after application of the brake?

Reduction of pressure in the circuit.

> Looks like both the rear calipers are jammed on. Haven't checked the
> front
> yet? Is that likely to be faulty vacuum sevo unit or master cyclinder?

Far more likely to be worn / seized calipers

> And how should I check before I remove the calipers.

Not 100% sure you can, but when the engine is off, there is no servo
assistance, so a faulty servo would have no effect.

Caliper rebuild time is my call, but ISTBC

--
Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
Tyger, Tyger Burning Bright (Remove rust to reply)
Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
Triumph Speed Triple: Black with extra black bits
www.cuore-sportivo.co.uk

Ian Jobbins wrote:

> Now I am little further down the track, I understand it a bit better.
>
> For some reason, whoever rebuilt these calipers didn't connect one of the
> pistons to the adjusting screw on the handbrake side. The car was parked
> for about 8 months (which is why I am trying to get it roadworthy). with
> the
> handbrake on and the caliper siezed. Take the handbrake off, adjuster
> retracts, but not the piston. Not sure I have all the story, but now have
> to pull both calipers off to make sure they are both set up the same way -
> that will be one exciting Friday Night!
>
> All will be good with the world tomorrow........

You've never worked on the rear calipers on a transaxle Alfa, then :>

They *very* best of luck


> Ian...
>
>
> ps ISTBC??????
>
> "Catman" > wrote in message
> .. .
>> Ian Jobbins wrote:
>>
>> > At the risk of sounding a little niave, what actually makes the rear
>> > caliper piston retract after application of the brake?
>>
>> Reduction of pressure in the circuit.
>>
>> > Looks like both the rear calipers are jammed on. Haven't checked the
>> > front
>> > yet? Is that likely to be faulty vacuum sevo unit or master cyclinder?
>>
>> Far more likely to be worn / seized calipers
>>
>> > And how should I check before I remove the calipers.
>>
>> Not 100% sure you can, but when the engine is off, there is no servo
>> assistance, so a faulty servo would have no effect.
>>
>> Caliper rebuild time is my call, but ISTBC
>>
>> --
>> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
>> Tyger, Tyger Burning Bright (Remove rust to reply)
>> Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
>> Triumph Speed Triple: Black with extra black bits
>> www.cuore-sportivo.co.uk

--
Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
Tyger, Tyger Burning Bright (Remove rust to reply)
Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
Triumph Speed Triple: Black with extra black bits
www.cuore-sportivo.co.uk

Ian Jobbins wrote:

> Now I am little further down the track, I understand it a bit better.
>
> For some reason, whoever rebuilt these calipers didn't connect one of the
> pistons to the adjusting screw on the handbrake side. The car was parked
> for about 8 months (which is why I am trying to get it roadworthy). with
> the
> handbrake on and the caliper siezed. Take the handbrake off, adjuster
> retracts, but not the piston. Not sure I have all the story, but now have
> to pull both calipers off to make sure they are both set up the same way -
> that will be one exciting Friday Night!
>
> All will be good with the world tomorrow........
>
> Ian...
>
>
> ps ISTBC??????

Ooops

I Stand To Be Corrected


> "Catman" > wrote in message
> .. .
>> Ian Jobbins wrote:
>>
>> > At the risk of sounding a little niave, what actually makes the rear
>> > caliper piston retract after application of the brake?
>>
>> Reduction of pressure in the circuit.
>>
>> > Looks like both the rear calipers are jammed on. Haven't checked the
>> > front
>> > yet? Is that likely to be faulty vacuum sevo unit or master cyclinder?
>>
>> Far more likely to be worn / seized calipers
>>
>> > And how should I check before I remove the calipers.
>>
>> Not 100% sure you can, but when the engine is off, there is no servo
>> assistance, so a faulty servo would have no effect.
>>
>> Caliper rebuild time is my call, but ISTBC
>>
>> --
>> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
>> Tyger, Tyger Burning Bright (Remove rust to reply)
>> Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
>> Triumph Speed Triple: Black with extra black bits
>> www.cuore-sportivo.co.uk

--
Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
Tyger, Tyger Burning Bright (Remove rust to reply)
Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
Triumph Speed Triple: Black with extra black bits
www.cuore-sportivo.co.uk

At the risk of sounding a little niave, what actually makes the rear caliper
piston retract after application of the brake?

Looks like both the rear calipers are jammed on. Haven't checked the front
yet? Is that likely to be faulty vacuum sevo unit or master cyclinder?

And how should I check before I remove the calipers.

Thanks Ian

Now I am little further down the track, I understand it a bit better.

For some reason, whoever rebuilt these calipers didn't connect one of the
pistons to the adjusting screw on the handbrake side. The car was parked
for about 8 months (which is why I am trying to get it roadworthy). with the
handbrake on and the caliper siezed. Take the handbrake off, adjuster
retracts, but not the piston. Not sure I have all the story, but now have
to pull both calipers off to make sure they are both set up the same way -
that will be one exciting Friday Night!

All will be good with the world tomorrow........

Ian...


ps ISTBC??????

"Catman" > wrote in message
.. .
> Ian Jobbins wrote:
>
> > At the risk of sounding a little niave, what actually makes the rear
> > caliper piston retract after application of the brake?
>
> Reduction of pressure in the circuit.
>
> > Looks like both the rear calipers are jammed on. Haven't checked the
> > front
> > yet? Is that likely to be faulty vacuum sevo unit or master cyclinder?
>
> Far more likely to be worn / seized calipers
>
> > And how should I check before I remove the calipers.
>
> Not 100% sure you can, but when the engine is off, there is no servo
> assistance, so a faulty servo would have no effect.
>
> Caliper rebuild time is my call, but ISTBC
>
> --
> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
> Tyger, Tyger Burning Bright (Remove rust to reply)
> Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
> Triumph Speed Triple: Black with extra black bits
> www.cuore-sportivo.co.uk

Ian Jobbins wrote:

> So far so good, but no I didn't get it all done last night. Just put it
> all
> back together for the third time (That's about par for me). Good news is
> that the other caliper looks okay and the adjusting screw on both sides
> seems to work.

I'm impressed. Do you have a ramp or something?

> Just bled the lines, but still have to finally adjust all the pads.
> Unforetunately (not really) my girlfriend (who has been very tolerant of
> all the grease I've been dragging through the house) is dragging me off to
> watch
> the football grand final. Really gotta love a girl that does that.
>
> Finishing the alfa will have to wait until tomorrow!
>
> Go Sydney!

Who's he?

C
>
> "Catman" > wrote in message
> . ..
>> Ian Jobbins wrote:
>>
>> > Now I am little further down the track, I understand it a bit better.
>> >
>> > For some reason, whoever rebuilt these calipers didn't connect one of
> the
>> > pistons to the adjusting screw on the handbrake side. The car was
> parked
>> > for about 8 months (which is why I am trying to get it roadworthy).
>> > with the
>> > handbrake on and the caliper siezed. Take the handbrake off, adjuster
>> > retracts, but not the piston. Not sure I have all the story, but now
> have
>> > to pull both calipers off to make sure they are both set up the same
> way -
>> > that will be one exciting Friday Night!
>> >
>> > All will be good with the world tomorrow........
>>
>> You've never worked on the rear calipers on a transaxle Alfa, then :>
>>
>> They *very* best of luck
>>
>>
>> > Ian...
>> >
>> >
>> > ps ISTBC??????
>> >
>> > "Catman" > wrote in message
>> > .. .
>> >> Ian Jobbins wrote:
>> >>
>> >> > At the risk of sounding a little niave, what actually makes the rear
>> >> > caliper piston retract after application of the brake?
>> >>
>> >> Reduction of pressure in the circuit.
>> >>
>> >> > Looks like both the rear calipers are jammed on. Haven't checked
>> >> > the front
>> >> > yet? Is that likely to be faulty vacuum sevo unit or master
> cyclinder?
>> >>
>> >> Far more likely to be worn / seized calipers
>> >>
>> >> > And how should I check before I remove the calipers.
>> >>
>> >> Not 100% sure you can, but when the engine is off, there is no servo
>> >> assistance, so a faulty servo would have no effect.
>> >>
>> >> Caliper rebuild time is my call, but ISTBC
>> >>
>> >> --
>> >> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
>> >> Tyger, Tyger Burning Bright (Remove rust to reply)
>> >> Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
>> >> Triumph Speed Triple: Black with extra black bits
>> >> www.cuore-sportivo.co.uk
>>
>> --
>> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
>> Tyger, Tyger Burning Bright (Remove rust to reply)
>> Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
>> Triumph Speed Triple: Black with extra black bits
>> www.cuore-sportivo.co.uk

--
Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
Tyger, Tyger Burning Bright (Remove rust to reply)
Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
Triumph Speed Triple: Black with extra black bits
www.cuore-sportivo.co.uk

So far so good, but no I didn't get it all done last night. Just put it all
back together for the third time (That's about par for me). Good news is
that the other caliper looks okay and the adjusting screw on both sides
seems to work.

Just bled the lines, but still have to finally adjust all the pads.
Unforetunately (not really) my girlfriend (who has been very tolerant of all
the grease I've been dragging through the house) is dragging me off to watch
the football grand final. Really gotta love a girl that does that.

Finishing the alfa will have to wait until tomorrow!

Go Sydney!


"Catman" > wrote in message
. ..
> Ian Jobbins wrote:
>
> > Now I am little further down the track, I understand it a bit better.
> >
> > For some reason, whoever rebuilt these calipers didn't connect one of
the
> > pistons to the adjusting screw on the handbrake side. The car was
parked
> > for about 8 months (which is why I am trying to get it roadworthy). with
> > the
> > handbrake on and the caliper siezed. Take the handbrake off, adjuster
> > retracts, but not the piston. Not sure I have all the story, but now
have
> > to pull both calipers off to make sure they are both set up the same
way -
> > that will be one exciting Friday Night!
> >
> > All will be good with the world tomorrow........
>
> You've never worked on the rear calipers on a transaxle Alfa, then :>
>
> They *very* best of luck
>
>
> > Ian...
> >
> >
> > ps ISTBC??????
> >
> > "Catman" > wrote in message
> > .. .
> >> Ian Jobbins wrote:
> >>
> >> > At the risk of sounding a little niave, what actually makes the rear
> >> > caliper piston retract after application of the brake?
> >>
> >> Reduction of pressure in the circuit.
> >>
> >> > Looks like both the rear calipers are jammed on. Haven't checked the
> >> > front
> >> > yet? Is that likely to be faulty vacuum sevo unit or master
cyclinder?
> >>
> >> Far more likely to be worn / seized calipers
> >>
> >> > And how should I check before I remove the calipers.
> >>
> >> Not 100% sure you can, but when the engine is off, there is no servo
> >> assistance, so a faulty servo would have no effect.
> >>
> >> Caliper rebuild time is my call, but ISTBC
> >>
> >> --
> >> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
> >> Tyger, Tyger Burning Bright (Remove rust to reply)
> >> Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
> >> Triumph Speed Triple: Black with extra black bits
> >> www.cuore-sportivo.co.uk
>
> --
> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
> Tyger, Tyger Burning Bright (Remove rust to reply)
> Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
> Triumph Speed Triple: Black with extra black bits
> www.cuore-sportivo.co.uk

Ian Jobbins wrote:

> Don't speak too soon. Finally on my way to finish the job. Have a pair
> of ramps, and just love lying on my back.

You must do

> By the way Sydney is a small town in Australia, about 3 million people,
> and they won the premiership!

I know. We have freinds there.
> Cheers
>
>


--
Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
Tyger, Tyger Burning Bright (Remove rust to reply)
Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
Triumph Speed Triple: Black with extra black bits
www.cuore-sportivo.co.uk

Don't speak too soon. Finally on my way to finish the job. Have a pair of
ramps, and just love lying on my back.

By the way Sydney is a small town in Australia, about 3 million people, and
they won the premiership!

Cheers


"Catman" > wrote in message
. ..
> Ian Jobbins wrote:
>
> > So far so good, but no I didn't get it all done last night. Just put it
> > all
> > back together for the third time (That's about par for me). Good news
is
> > that the other caliper looks okay and the adjusting screw on both sides
> > seems to work.
>
> I'm impressed. Do you have a ramp or something?
>
> > Just bled the lines, but still have to finally adjust all the pads.
> > Unforetunately (not really) my girlfriend (who has been very tolerant of
> > all the grease I've been dragging through the house) is dragging me off
to
> > watch
> > the football grand final. Really gotta love a girl that does that.
> >
> > Finishing the alfa will have to wait until tomorrow!
> >
> > Go Sydney!
>
> Who's he?
>
> C
> >
> > "Catman" > wrote in message
> > . ..
> >> Ian Jobbins wrote:
> >>
> >> > Now I am little further down the track, I understand it a bit better.
> >> >
> >> > For some reason, whoever rebuilt these calipers didn't connect one of
> > the
> >> > pistons to the adjusting screw on the handbrake side. The car was
> > parked
> >> > for about 8 months (which is why I am trying to get it roadworthy).
> >> > with the
> >> > handbrake on and the caliper siezed. Take the handbrake off,
adjuster
> >> > retracts, but not the piston. Not sure I have all the story, but now
> > have
> >> > to pull both calipers off to make sure they are both set up the same
> > way -
> >> > that will be one exciting Friday Night!
> >> >
> >> > All will be good with the world tomorrow........
> >>
> >> You've never worked on the rear calipers on a transaxle Alfa, then :>
> >>
> >> They *very* best of luck
> >>
> >>
> >> > Ian...
> >> >
> >> >
> >> > ps ISTBC??????
> >> >
> >> > "Catman" > wrote in message
> >> > .. .
> >> >> Ian Jobbins wrote:
> >> >>
> >> >> > At the risk of sounding a little niave, what actually makes the
rear
> >> >> > caliper piston retract after application of the brake?
> >> >>
> >> >> Reduction of pressure in the circuit.
> >> >>
> >> >> > Looks like both the rear calipers are jammed on. Haven't checked
> >> >> > the front
> >> >> > yet? Is that likely to be faulty vacuum sevo unit or master
> > cyclinder?
> >> >>
> >> >> Far more likely to be worn / seized calipers
> >> >>
> >> >> > And how should I check before I remove the calipers.
> >> >>
> >> >> Not 100% sure you can, but when the engine is off, there is no servo
> >> >> assistance, so a faulty servo would have no effect.
> >> >>
> >> >> Caliper rebuild time is my call, but ISTBC
> >> >>
> >> >> --
> >> >> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
> >> >> Tyger, Tyger Burning Bright (Remove rust to reply)
> >> >> Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
> >> >> Triumph Speed Triple: Black with extra black bits
> >> >> www.cuore-sportivo.co.uk
> >>
> >> --
> >> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
> >> Tyger, Tyger Burning Bright (Remove rust to reply)
> >> Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
> >> Triumph Speed Triple: Black with extra black bits
> >> www.cuore-sportivo.co.uk
>
> --
> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
> Tyger, Tyger Burning Bright (Remove rust to reply)
> Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2
> Triumph Speed Triple: Black with extra black bits
> www.cuore-sportivo.co.uk