Replacing Brake Master Servo on an S3

[sleeptalker]

Hiya,

I'd like to change the master brake servo (Ford type) on my S3 and was wondering weather it's a simple job as i'll be keeping the original reservoir and cylinder etc?

Does the master cylinder just unscrew from the cylinder once the four bolts have been removed that hold it to the bulkhead?

If I keep the cylinder full of fluid will I need to bleed the brakes?

Am I right in thinking a Ford Fiesta Mk3 will be a straight swap-out for the existing Ford part with TRW/Lucas PSA328?

If so where can I get one?

Cheers!

[mep12345]

Its all here

HTH

Mark

[sleeptalker]

Brilliant thanks!!

[Barkychoc]

Make sure you put some sealant between the servo & bulkhead to stop water getting in - its right behind the front wheel!

[Brendon NZ]

You are lucky you had the Ford Servo...mine had the Saab version which we can no longer get, so have just ordered a new Servo and master from TVR Car parts....gets fitted next week.

[mep12345]

Barkychoc said:

Make sure you put some sealant between the servo & bulkhead to stop water getting in - its right behind the front wheel!

I used thick grease as it is "self healing" whereas sealant can break down over time

Mark

[phillpot]

mep12345 said:

Barkychoc said:

Make sure you put some sealant between the servo & bulkhead to stop water getting in - its right behind the front wheel!

I used thick grease as it is "self healing" whereas sealant can break down over time

Mark

Blimey, just how long you thinking of keeping that car ? Original (20 year old) stuff still stuck like st to a blanket when I changed my servo last year

[sleeptalker]

Can the master cylinder be removed from the servo without needing to be bled?

I'm wondering if I can just remove the servo from the bulkhead, unscrew the 2 bolts holding on the cylinder, then fit a new servo without needing to do any of the bleeding the article above in this thread mentions?

[mep12345]

sleeptalker said:

Can the master cylinder be removed from the servo without needing to be bled?

I'm wondering if I can just remove the servo from the bulkhead, unscrew the 2 bolts holding on the cylinder, then fit a new servo without needing to do any of the bleeding the article above in this thread mentions?

Depends how much free play you have on your brake pipes - in theory yes it should be possible but might be easier just to accept the fact that you need to bleed them and give yourself more room to work

[Gerald-TVR]

sleeptalker said:

Can the master cylinder be removed from the servo without needing to be bled?

I'm wondering if I can just remove the servo from the bulkhead, unscrew the 2 bolts holding on the cylinder, then fit a new servo without needing to do any of the bleeding the article above in this thread mentions?

Yep did it last year was a bit of a fiddle but possible