Ford Scorpio Forum - Print Page


    
      
        Ford Scorpio Forum
        (https://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl)
      

        General >> Problems >> Brakes!!!
        
(Message started by: DagenhamGeoff on Aug 14^th, 2009, 5:10pm)

Title: Brakes!!!
Post by DagenhamGeoff on Aug 14^th, 2009, 5:10pm

Hi again people, firstly wanna say thanks for all the help i got from you guys with my brother in laws Scorpio, now it`s my turn lol.
Just replaced the front discs and pads, bled the system the old 2 man way, brakes are super spongy, almost having to slam them to brake and now they`re making a grinding/screeching sound while slow driving,
I`ve used coppergrease as instructed in the manual provided on here and put everything back EXACTLY how it was, the system has been bled about 4 times now but still spongy, the springs that hold the pad onto caliper only goes on one way doesn`t it..totally totally confused now.any ideas guys PLEASE!!!

Title: Re: Brakes!!!
Post by Simmo on Aug 14^th, 2009, 5:17pm

Geoff. I think the trick is to keep the jar of fluid ABOVE the bleed nipple and to grease the threads of the nipple to stop air getting in that way. I'm sure this was a method used succesfully recently. Possibly Jonnycab??.

Title: Re: Brakes!!!
Post by Matt on Aug 14^th, 2009, 5:22pm

Hi mate

firstly is you car a manual or auto? if manual then when bleeding the brakes did you let the oil go below the hydraulic clutch take off?

can you see any visible leak from around the seals on the callipers? have you done up the bleed nipple?

can only think of the basics atm :-/

Title: Re: Brakes!!!
Post by DagenhamGeoff on Aug 14^th, 2009, 5:23pm

Thats exactly how I done it but still the same.i read somewhere on here about a guy who had the same problem and said he put the springs back the same way they came off but apparently that was wrong..I`m totally lost

Title: Re: Brakes!!!
Post by DagenhamGeoff on Aug 14^th, 2009, 5:24pm

Sorry forgot to say it`s a 2.3 auto...a rust bucket but i love the old girl lol

Title: Re: Brakes!!!
Post by adam on Aug 14^th, 2009, 6:13pm

Is your servo still working?

Title: Re: Brakes!!!
Post by DagenhamGeoff on Aug 14^th, 2009, 6:20pm

Yeah the servo is fine, first thing i tried...clamped off hoses and pedal was rock hard, unclamped and pedals soft as ice cream again.....totally lost now..they seem to also now make a noise when first pulling off as if the pads are sticking to the discs.arghhhhh

Title: Re: Brakes!!!
Post by DagenhamGeoff on Aug 14^th, 2009, 8:51pm

Any more ideas please guys

Title: Re: Brakes!!!
Post by tonyboy on Aug 14^th, 2009, 9:16pm

Tell me if i'm wrong but is it nesecsary to bleed the brakes after changing the brake pads. The reason why i'm saying that is because i changed my discs and pads about a month ago, all i did was to open the brake oil resevoir put a rag in there to block the hole changed the discs and pads put the lid back on the resevoir started the engine pumped the brake pedal a few times and it was solid and it's been ok since. No spongy brakes

Title: Re: Brakes!!!
Post by DagenhamGeoff on Aug 14^th, 2009, 9:39pm

I did that first and they were spongy then was advised to bleed them, done that and still spongy...mental or what lol

Title: Re: Brakes!!!
Post by gozz on Aug 14^th, 2009, 11:56pm

Geoff.
Give em a few days of careful use to level off,if you are too hasty you can jam a leg of the inner pad retaining spring outside the piston and possibly damage the boot,worth a check ?
GOZZ.

Title: Re: Brakes!!!
Post by Tompion on Aug 15^th, 2009, 12:14am

I managed to put one of the springs on wrong, the pedal went practically to the floor & felt spongy.
Make sure the part of the spring arrowed is correct.
http://i.imgur.com/5NCd82f.jpg

Title: Re: Brakes!!!
Post by Jonnycab on Aug 15^th, 2009, 1:41am

on 08/14/09 at 17:17:36, Simmo wrote:

Yes, it was me.... ;)

If you clamped off the pipes & they were solid & then went spongy when you unclamped them, then it does sound like you have air in the calipers. When bleeding, it's very important to hold the jar above the bleed nipples to maintain pressure, otherwise air gets drawn into the caliper via the nipple threads.

If after you've bled them this way & air is still getting drawn in via the threads, then try wrapping some PTFE tape around the threads. This worked on my MK1 Granny when that proved a real b****r to bleed :)

Title: Re: Brakes!!!
Post by DagenhamGeoff on Aug 15^th, 2009, 9:59am

I think i might go check that spring.bet i put it on wrong ....I`ll check once I`ve done all the other little "menial household" jobs and let you all know. Thanks guys.

Title: Re: Brakes!!!
Post by DagenhamGeoff on Aug 15^th, 2009, 5:09pm

Guys you are the best...not only did i put 1 spring back wrong but done them BOTH wrong....first class muppet or what.thanks for all your help everyone, hope i can return the favour one day.

Title: Re: Brakes!!!
Post by heliphil58 on Aug 15^th, 2009, 5:15pm

Hi you can find out where the air is by clamping off each wheel in turn till the pedal rock solid then release each one in turn as you bleed that wheel leaving the others clamped don't foget to keep the master cylinder topped all the time

Title: Re: Brakes!!!
Post by Tompion on Aug 15^th, 2009, 5:27pm

on 08/15/09 at 17:09:39, DagenhamGeoff wrote:

Guys you are the best...not only did i put 1 spring back wrong but done them BOTH wrong....first class muppet or what.thanks for all your help everyone, hope i can return the favour one day.

Glad you got it sorted.
Dave

Title: Re: Brakes!!!
Post by Chieftain on Aug 15^th, 2009, 7:29pm

talking of springs anyone got a spare one of mine has snapped. :(

Title: Re: Brakes!!!
Post by tonyboy on Aug 15^th, 2009, 7:42pm

Would a loose spring cause a slight squeel when you you apply the brake softly... ???

Title: Re: Brakes!!!
Post by Jonnycab on Aug 16^th, 2009, 3:34am

on 08/15/09 at 19:42:26, tonyboy wrote:

Would a loose spring cause a slight squeel when you you apply the brake softly... ???

Yes ;)......could also be caused by too little or no copper grease or similar high temp grease :)

Title: Re: Brakes!!!
Post by Tekno on Aug 16^th, 2009, 5:34am

on 08/16/09 at 03:34:53, Jonnycab wrote:

Yes ;)......could also be caused by too little or no copper grease or similar high temp grease :)

sorry stupid question (and english) but, where is that grease supposed to put?

Title: Re: Brakes!!!
Post by Simmo on Aug 16^th, 2009, 6:31am

On the back of the pad, where the piston presses on it and on the little lugs on the pads where they touch the caliper. Only use a small amount!.