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Author Topic: rear brake pins  (Read 3453 times)

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nellys coupe

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rear brake pins
« on: 10 March 2019, 19:05:32 »

i need to replace the rear pad retaing pins, and spring palates looking around they are saying that the kits are diffrent on a 4 banger engine than a 6 pot i thought they where all the same :(
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johnnydog

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Re: rear brake pins
« Reply #1 on: 10 March 2019, 20:16:25 »

There's is all the info you need in a topic from 2014 titled brake pad retaining pins.
It depends whether you gave solid or vented discs.
From memory vented pins are 86mm long and the springs 56mm wide - solid discs pins and springs are obviously shorter / narrower.
The vented pins / springs are nigh on impossible to find these days,  and only from Vauxhall (If still available).
« Last Edit: 10 March 2019, 20:18:43 by johnnydog »
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nellys coupe

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Re: rear brake pins
« Reply #2 on: 10 March 2019, 20:23:32 »

There's is all the info you need in a topic from 2014 titled brake pad retaining pins.
It depends whether you gave solid or vented discs.
From memory vented pins are 86mm long and the springs 56mm wide - solid discs pins and springs are obviously shorter / narrower.
The vented pins / springs are nigh on impossible to find these days,  and only from Vauxhall (If still available).
thanks mate ill pull a wheel and check :y
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Doctor Gollum

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Re: rear brake pins
« Reply #3 on: 10 March 2019, 21:00:12 »

There's is all the info you need in a topic from 2014 titled brake pad retaining pins.
It depends whether you gave solid or vented discs.
From memory vented pins are 86mm long and the springs 56mm wide - solid discs pins and springs are obviously shorter / narrower.
The vented pins / springs are nigh on impossible to find these days,  and only from Vauxhall (If still available).
thanks mate ill pull a wheel and check :y
2.6/3.2 left the factory with vented rears. Everything else had solids. No ifs. No buts.

Vented callipers have an 8mm filler strip between the two halves and 42 stamped on the outer face (this refers to the 42mm pistons as opposed to 40mm of solids.

Fitting solid discs to vented callipers WILL almost certainly result in death. YHBW.

Oh, btw, parts guides/Mintex/Apec claim that the correct size fittings for Omega vented rears exist. They lie. You can waste £30 finding out for yourself if you like.

Also replacement vented callipers aren't available. Solids however are. This gives you two distinct choices:

1. Buy the correct fittings from VX, £45 last time I got any and fit with vented discs, as per factory spec.

2. Buy non vented callipers and use readily available solid fittings along with solid discs.
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Doctor Gollum

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Re: rear brake pins
« Reply #4 on: 10 March 2019, 21:21:37 »

Quote
https://www.omegaowners.com/forum/index.php?topic=127928.msg1893970#new

The Mintex vented kit is wrong. Not sure what it fits but it comes up about 4mm short for the Omega.
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Re: rear brake pins
« Reply #5 on: 10 March 2019, 22:28:41 »

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Enceladus

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Re: rear brake pins
« Reply #6 on: 11 March 2019, 20:12:54 »

Not sure you've actually confirmed if the car you are dealing with is a later V6 with ventilated rear discs or not? Assuming you have ventilated then you can in all probability re-use the pins. They are not in a beauty contest, just clean them up with a fine wire brush or similar.

The cross springs are a different matter. They corrode, especially around the rivet. So I would clean them far more carefully. More of an attempt at longer term preservation.
« Last Edit: 11 March 2019, 20:21:19 by Enceladus »
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New POD

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Re: rear brake pins
« Reply #7 on: 11 March 2019, 21:22:33 »

Not sure you've actually confirmed if the car you are dealing with is a later V6 with ventilated rear discs or not? Assuming you have ventilated then you can in all probability re-use the pins. They are not in a beauty contest, just clean them up with a fine wire brush or similar.

The cross springs are a different matter. They corrode, especially around the rivet. So I would clean them far more carefully. More of an attempt at longer term preservation.

I think I got a set of pins and springs from Autovaux.  My pins were clearly originals from 2001 and had 190K of wear on them. They were not pretty.
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Jan Suhr

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Re: rear brake pins
« Reply #8 on: 18 March 2019, 08:00:25 »

GM part numbers for the vented rear calipers pins and springs:

Pins GM #9195055
Spings GM #9195056

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Andy B

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Re: rear brake pins
« Reply #9 on: 18 March 2019, 08:52:23 »

I dont know how you wear these pins out. I drove my Omega & Senators to around 180k miles on the original pins & they all looked as new ..... the anti rattle clips did rot though.
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Re: rear brake pins
« Reply #11 on: 18 March 2019, 11:45:54 »

I dont know how you wear these pins out. I drove my Omega & Senators to around 180k miles on the original pins & they all looked as new ..... the anti rattle clips did rot though.
How many Omegas have you owned with vented rear discs...  ::)
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Andy B

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Re: rear brake pins
« Reply #12 on: 18 March 2019, 16:28:21 »

I dont know how you wear these pins out. I drove my Omega & Senators to around 180k miles on the original pins & they all looked as new ..... the anti rattle clips did rot though.
How many Omegas have you owned with vented rear discs...  ::)

Errr? None  :P ..... but vented discs over none vented discs just means different length pin
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Doctor Gollum

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Re: rear brake pins
« Reply #13 on: 18 March 2019, 16:39:14 »

Actually allows better heat absorbtion when driven hard as TC actively applies rear brakes on DBW V6 cars. So when driven hard the rear pads, and therefore pins, get hammered far more than on the non vented cars such as your 3.0...

Ergo, the pins wear out more readily. The springs are only thin, so rot out over time regardless of use.
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Jan Suhr

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Re: rear brake pins
« Reply #14 on: 18 March 2019, 18:28:26 »

Rust eats them and the springs
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Jan Suhr
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