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Author Topic: Brake pedal travel - spongy  (Read 3407 times)

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TheBoy

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Brake pedal travel - spongy
« on: 01 March 2008, 19:39:51 »

A lot of pedal travel.  I reckon I'm can get close to getting in on the boards!

Does that mean I have air in it?

I have bled it today (along with new front discs/pads), no air coming out at calipers. Air in ABS unit?

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tunnie

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Re: Brake pedal travel - spongy
« Reply #1 on: 01 March 2008, 19:42:19 »

you actually got any pads left?  ;)
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VXL V6

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Re: Brake pedal travel - spongy
« Reply #2 on: 01 March 2008, 19:44:48 »

Quote
A lot of pedal travel.  I reckon I'm can get close to getting in on the boards!

Does that mean I have air in it?

I have bled it today (along with new front discs/pads), no air coming out at calipers. Air in ABS unit?


Does the pedal feel spongy with the engine running?

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Marks DTM Calib

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Re: Brake pedal travel - spongy
« Reply #3 on: 01 March 2008, 19:47:00 »

Have you ensured there is no air in the caliper?
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markey mark

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Re: Brake pedal travel - spongy
« Reply #4 on: 01 March 2008, 19:56:39 »

Quote
A lot of pedal travel.  I reckon I'm can get close to getting in on the boards!

Does that mean I have air in it?

I have bled it today (along with new front discs/pads), no air coming out at calipers. Air in ABS unit?


pressure bleed was the only way i could get a pedal on one i sold bud ! :y
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TheBoy

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Re: Brake pedal travel - spongy
« Reply #5 on: 01 March 2008, 20:02:22 »

Quote
Have you ensured there is no air in the caliper?
Not quite sure how I could have got air in calipers - I used easibleed to get the fresh fluid to calipers, then clamped hose and push caliper in to get old fluid from caliper.  At no point, afaik, could it have 'sucked' air in through nipple.  If I have got air in them, how do I clear?

Its probably more likely I let air in at res end when emptying old out - didn't think I let it get that empty, but possible I guess  :'(
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TheBoy

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Re: Brake pedal travel - spongy
« Reply #6 on: 01 March 2008, 20:03:07 »

Quote
you actually got any pads left?  ;)
No, thats why I needed to change them. And the discs. ::)
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Jimbob

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Re: Brake pedal travel - spongy
« Reply #7 on: 01 March 2008, 20:04:42 »

Think you could find someone with a tech 2 to activate the abs, heard that can clear air  ;D

TheBoy

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Re: Brake pedal travel - spongy
« Reply #8 on: 01 March 2008, 20:10:39 »

Quote
Think you could find someone with a tech 2 to activate the abs, heard that can clear air  ;D
I guess that will be my next move tomorrow, unless someone else has a better idea....
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Danny

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Re: Brake pedal travel - spongy
« Reply #9 on: 01 March 2008, 20:13:52 »

pressing the correct pedal? ;D
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achoo81

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Re: Brake pedal travel - spongy
« Reply #10 on: 01 March 2008, 20:17:22 »

I was told by a Vx mechanic that when you change the fluid or bleed these brakes you should use the easibleed  system that uses the air in the spare tyre to bleed them NOT to use pump pedal method as the seals in the master cylinder and the rest of the system dont like it. Also  bleed them starting from the furthest nipple away from the master cylinder and finish at the closest to it.
« Last Edit: 01 March 2008, 20:20:07 by DaveBrown »
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TheBoy

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Re: Brake pedal travel - spongy
« Reply #11 on: 01 March 2008, 20:36:19 »

Quote
I was told by a Vx mechanic that when you change the fluid or bleed these brakes you should use the easibleed  system that uses the air in the spare tyre to bleed them NOT to use pump pedal method as the seals in the master cylinder and the rest of the system dont like it. Also  bleed them starting from the furthest nipple away from the master cylinder and finish at the closest to it.
This is first time I've ever used easibleed on Omega, and this happens.  Every other Omega I've always done the old fashioned way, with much better success!
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achoo81

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Re: Brake pedal travel - spongy
« Reply #12 on: 01 March 2008, 20:45:20 »

If you use the easibleed again make sure you have at least 30psi in the wheel you are using when I use mine I put around 35 psi in it and fill the resovior to within an inch of the top.
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lee4206

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Re: Brake pedal travel - spongy
« Reply #13 on: 01 March 2008, 20:55:56 »

It not the ideal way to to do it but if its air traped at master cyl you can sometimes clear it by pushing the pistons back very slowly without undoing the bleed nipple. This should force all of the air out.  You will need to suck the fluid out of the resivoir  to stop it over flowing
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Bandit127

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Re: Brake pedal travel - spongy
« Reply #14 on: 01 March 2008, 21:03:24 »

Quote
If you use the easibleed again make sure you have at least 30psi in the wheel you are using when I use mine I put around 35 psi in it and fill the resovior to within an inch of the top.

Don't want an argument here but the last time I used one the instructions said no more than 15 psi as it affects the seals?

(Which was probably the last time I Please read the manual as it happens....)

Jim
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