Brake Servo
Brake Servo
Author
Discussion

Richard86

Original Poster:

53 posts

183 months

Friday 24th February 2012
quotequote all
Hi All,

Sorry if this have been asked before but the search function seems very temperamental.....
Does anyone know if the brake servo is off a Ranger Rover classic or something else?

Just lifted my carpet to see a pool of brake fluid, assuming its coming from the servo..
Is this a common problem or is it likely to be coming from elsewhere?

Rich

Ribol

11,995 posts

288 months

Friday 24th February 2012
quotequote all
Sure it isn't coming from the clutch master cylinder, that is more common?

Barreti

6,689 posts

267 months

Friday 24th February 2012
quotequote all
Brake master cylinder?

I had a ruddy puddle under my feet when mine was going.
Check the levels and take it for a drive, see which drops.
Or feel around the pipework by the steering column.
Or shine a light into the wheelarch when you've popped off the access panel, you might be able to see the fluid path.

If its the brake master it was a pig of a job. On my pre-cat Griff anyway.

carsy

3,019 posts

195 months

Friday 24th February 2012
quotequote all
As said above, it wont be coming from the servo. It will be from the clutch or brake master cylinder. Keep your fingers crossed its the clutch.

Servo is off a Fiesta. When i changed mine I seem to recall they are all the same across all Fiesta models. Worth changing if it is your brake master as it will have leaked into the servo and will speed up the rusting process. Plus not a job you want to be doing twice so change it all while your in there.

Richard86

Original Poster:

53 posts

183 months

Friday 24th February 2012
quotequote all
Thanks for the advice,

Just had another look and sadly it does appear to be from the brake master not the clutch.

This doesn't look fun.....


Rich

SILICONEKID340HP

14,997 posts

261 months

Friday 24th February 2012
quotequote all
Richard86 said:
Hi All,

Sorry if this have been asked before but the search function seems very temperamental.....
Does anyone know if the brake servo is off a Ranger Rover classic or something else?

Just lifted my carpet to see a pool of brake fluid, assuming its coming from the servo..
Is this a common problem or is it likely to be coming from elsewhere?

Rich
Its Ford Fiesta 1990`s car ,i got one from the scrap yard ,works perfect..

carsy

3,019 posts

195 months

Friday 24th February 2012
quotequote all
Not a great job, but not the end of the world. Its probably been leaking for sometime so my advice would be to change the servo as well. Save doing the job again when the servo decides to give up.

Master cylinder is XR2. 22.2mm bore iirc. It will say on your old one. The two front oulets are M12 the rear two M10. I got my parts from Brakes International at a fair price.

To get the servo out you will have to take the pedal box out.

Good luck.

SILICONEKID340HP

14,997 posts

261 months

Friday 24th February 2012
quotequote all
My mate who has been a mechanic for 40 years and a diesel and petrol engine builder did this job for me ,he said directly in my face

"That was the worst job i have ever done in my life " laugh

Im not joking .!

Richard86

Original Poster:

53 posts

183 months

Friday 24th February 2012
quotequote all
SILICONEKID340HP said:
My mate who has been a mechanic for 40 years and a diesel and petrol engine builder did this job for me ,he said directly in my face

"That was the worst job i have ever done in my life " laugh

Im not joking .!
Your not helping laugh

Just had another look, how the hell do you get a spanner in there!!.
Extreme gynecology!!

Rich

carsy

3,019 posts

195 months

Friday 24th February 2012
quotequote all
Assuming you are doing the servo as well.

Disconnect the brake and clutch pipes in the drivers footwell where they pass through the bulkhead into the engine bay.

Undo the clutch master cylinder and get it free from the pedal box, this will be a two person job, one in the footwell one in the inner wing. You will have to also diconnect it via the clevis pin on the pedal itself. Nice job if its siezed to the pedal.

Undo the brake master cylinder from the servo in the front wing. Then undo the servo from the pedal box via the 4 nuts in the footwell. Also undo from pedal again via clevis pin. Keep both brake master cylinder and servo in the wing. Also remove throttle pedal completely from the pedal box and lie it on the floor.

Unscrew clutch pedal completely off. This will allow you to manouvre the pedal box over the steering column and out without removing steering column itself. There are 6 bolts holding the pedal box in. 4 on top of the inner wing and two in the front o/s wheelarch. Once pedal box is out the servo and master cylinder complete with brake pipes can be just pulled out.

I personally would re fit brake pipes to new master cylinder on the bench before placing back in the car. Its much easier to get them nice and tight on the bench than trying to do it through the tiny inspection hole.

The worst bit about this job is the mess with brake fluid dripping everywhere. Keep plenty of rags handy. The nuts and bolts to the master cylinders in the inner wing are tight to get to but it can be done with extensions etc. Some can be got to via the 2 smaller holes in the wing where the servo hose and throttle cable pass through.

Hope that helps Ian.

Jon Brown

681 posts

214 months

Sunday 26th February 2012
quotequote all
I replaced my brake master clyinder in two hours from top. just requires a little patience.

I did post a how to on one of my previous posts (brake problems)

GV

2,366 posts

254 months

Sunday 26th February 2012
quotequote all
A couple of things.

The BMC bore is 20mm and is from a Corty Mk4/5. If changing the BMC it's good practice to bench bleed it first.

Hope it works out ok

Colin RedGriff

2,541 posts

287 months

Sunday 26th February 2012
quotequote all
tip for when you re reassembling - a 1/4" socket short extension and ratchet will reach the lower bolt on the clutch master cylinder. I tie wrapped it to the fluid chamber to hold it in place while I did the bolt from in the footwell

carsy

3,019 posts

195 months

Sunday 26th February 2012
quotequote all
It is definately Fiesta Xr2i 22.2mm bore.

Richard86

Original Poster:

53 posts

183 months

Sunday 26th February 2012
quotequote all
Well I've just bough a fiesta unit that at least looks very similar...

Will give it a go next weekend.

Richard86

Original Poster:

53 posts

183 months

Sunday 26th February 2012
quotequote all
carsy said:
Assuming you are doing the servo as well.

Disconnect the brake and clutch pipes in the drivers footwell where they pass through the bulkhead into the engine bay.

Undo the clutch master cylinder and get it free from the pedal box, this will be a two person job, one in the footwell one in the inner wing. You will have to also diconnect it via the clevis pin on the pedal itself. Nice job if its siezed to the pedal.

Undo the brake master cylinder from the servo in the front wing. Then undo the servo from the pedal box via the 4 nuts in the footwell. Also undo from pedal again via clevis pin. Keep both brake master cylinder and servo in the wing. Also remove throttle pedal completely from the pedal box and lie it on the floor.

Unscrew clutch pedal completely off. This will allow you to manouvre the pedal box over the steering column and out without removing steering column itself. There are 6 bolts holding the pedal box in. 4 on top of the inner wing and two in the front o/s wheelarch. Once pedal box is out the servo and master cylinder complete with brake pipes can be just pulled out.

I personally would re fit brake pipes to new master cylinder on the bench before placing back in the car. Its much easier to get them nice and tight on the bench than trying to do it through the tiny inspection hole.

The worst bit about this job is the mess with brake fluid dripping everywhere. Keep plenty of rags handy. The nuts and bolts to the master cylinders in the inner wing are tight to get to but it can be done with extensions etc. Some can be got to via the 2 smaller holes in the wing where the servo hose and throttle cable pass through.

Hope that helps Ian.
Sounds good, thanks for the advice.

roseytvr

1,790 posts

208 months

Friday 23rd August 2013
quotequote all
carsy said:
Assuming you are doing the servo as well.

Disconnect the brake and clutch pipes in the drivers footwell where they pass through the bulkhead into the engine bay.

Undo the clutch master cylinder and get it free from the pedal box, this will be a two person job, one in the footwell one in the inner wing. You will have to also diconnect it via the clevis pin on the pedal itself. Nice job if its siezed to the pedal.

Undo the brake master cylinder from the servo in the front wing. Then undo the servo from the pedal box via the 4 nuts in the footwell. Also undo from pedal again via clevis pin. Keep both brake master cylinder and servo in the wing. Also remove throttle pedal completely from the pedal box and lie it on the floor.

Unscrew clutch pedal completely off. This will allow you to manouvre the pedal box over the steering column and out without removing steering column itself. There are 6 bolts holding the pedal box in. 4 on top of the inner wing and two in the front o/s wheelarch. Once pedal box is out the servo and master cylinder complete with brake pipes can be just pulled out.

I personally would re fit brake pipes to new master cylinder on the bench before placing back in the car. Its much easier to get them nice and tight on the bench than trying to do it through the tiny inspection hole.

The worst bit about this job is the mess with brake fluid dripping everywhere. Keep plenty of rags handy. The nuts and bolts to the master cylinders in the inner wing are tight to get to but it can be done with extensions etc. Some can be got to via the 2 smaller holes in the wing where the servo hose and throttle cable pass through.

Hope that helps Ian.
Great post Ian - but I still can't get the censored out. Anyone else managed to get the pedal box out without removing the steering column, if so what's the secret as mine ain't having it!

carsy

3,019 posts

195 months

Friday 23rd August 2013
quotequote all
If everything is disconnected and your ready to pull the box out. Unscrew the adjustable clutch pedal and remove it completely. I'm just talking about the adjustable bit your foot goes on. You can then swing the arm of the pedal up and out of the way which will allow just enough space to manouvre the whole thing over the steering column.

roseytvr

1,790 posts

208 months

Friday 23rd August 2013
quotequote all
Thanks Ian for the swift response. It would appear from your post the arm swings up first and then I pressumably twist it out over the column - will try again tonight
Cheers

roseytvr

1,790 posts

208 months

Friday 23rd August 2013
quotequote all
One knackered servo on the workbench! Reassembly tomorrow, thanks Ian.