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Author Topic: Rear brake disks alternative Murena 2.2  (Read 33261 times)
Oetker
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« on: September 08, 2009, 02:01:10 pm »

Rear brake disks on the 2.2 are unique for the Murena, and no other car
have them fitted.
The after market disks are a bit expensive and some dealers don't have
them anymore.
There is not much information on this subject.
Some people mention to use Audi, others Alfa disks, but nobody couldt tell me exact what fits.
So I searched the H-base comparing every car disks with the disks
from the Murena and I couldn't find something that would suite my needs.
A bit disapointed I left the idea doing this.

At the beginning of this year a fellow member of the Belgium club wanted
to do the same job and together we started searching for a replacement again.
After spending a lot of time we found this as a good substitute.


About the same diameter.
The hole in the midle was a bit smaller (72mm) where the Murena has
75mm, but thicknes was ok.


Apart from the holes for the wheelbolts there are only 2 holes.
We needed 4 and tapped with fine metric M10x1.25
We puted de disks crosswise together and made and tapped the holes (drill 8.5mm).




After that the middle hole need to be made on a machine that can handle the 261 mm disks.
That was a 10 minute job at a specialised firm and cost me peanuts.
After that the Murena part fits excellent on the disk.



putting the disk and the Murena part together you need to use the same washers (they are special) and MOUNT THEM THE SAME WAY USING LOCKTITE ON THE BOLTS, as described in the manual with 5,5 daNm.


Then fitted the calipers using 6mm thick washers because they were out of line.(we now have bushes fitted).
Because of that we needed longer bolts, and they were difficult to find (fine metric M12x1.50).
After some searching I found them at a Hyundai garage and they have the same grade steel.
The ordering number there on the picture.


They are 1mm to long, so get a bit off .
Notice the 6mm washers






Everything revised.


New seals, pads, pistons, brakeflexibles, and rust removed between the alu and steel.

They are fitted since March, and here is a movie of a Murena in destress.

http://www.youtube.com/watch?v=p2jK1lhnwV4&feature=related

They work awesome, and balance is perfect using the right Ferodo pads.

The disks are from Alfa Romeo front pre 1980.
Here a complete list.

Alfa 75
Alfa 90
Alfa Alfetta
Alfa GTV 1e generatie.
Alfa Giulietta

Note....Thicknes may vary from 11mm to 12,7 mm depending on manufacturer.
At the shop a set costs around €70.
At ebay to be found around €20-40 looking for a bargain.



« Last Edit: November 10, 2016, 09:54:24 pm by Oetker » Logged

I feel like Jonah, only my fish looks different.
Murena 2.2 Red 1982. Murena 1.6 black on places.
Jon Weywadt
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« Reply #1 on: September 08, 2009, 08:47:25 pm »

Rear brake disks on the 2.2 are unique for the Murena, and no other car
have them fitted.
The after market disks are a bit expensive and some dealers don't have
them anymore.
There is not much information on this item.
Some mention Audi, others Alfa, but nobody couldt tell me exact what will
fit.
So I searched the H-base comparing every car brakedisks with the disks
from the Murena I couldn't find something that would suite my needs.
A bit disapointed I left the idea doing this.
---

Nice job and an excellent photo series. I will keep his in mind. Smiley
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Matranaut par excellence Cool
michaltalbot
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« Reply #2 on: September 08, 2009, 11:38:06 pm »

Nice job  Wink and thumbs up!

Hm, I'm also using this way of "double spring protection" against knocking of brake pads  Grin as is seen on this picture:



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Oetker
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« Reply #3 on: September 08, 2009, 11:45:52 pm »

There are more ways to get the rattle out.
If there is to much play on the pads (one of the reason for rattle), you can put anti rattle springs on the up and downside of the pads, using 4 total each side.
This will keep the pads floating in the middle.
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I feel like Jonah, only my fish looks different.
Murena 2.2 Red 1982. Murena 1.6 black on places.
michaltalbot
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« Reply #4 on: September 09, 2009, 10:13:57 am »

Yes, but these little springs are no more available here in CZ  Sad so I found the solution in bigger springs from Renault, which are doing the job also very well and they are still available.
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Oskar
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« Reply #5 on: September 09, 2009, 10:50:15 am »

very nice work and the photos are good!
I gues the front discs arent hard to find today?

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peugeot 205 gti
murena 1.6
Oetker
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« Reply #6 on: September 09, 2009, 02:08:58 pm »

You can almost find them at the supermarket Grin

Philippe of the french forum made a list.
I took the freedom of linking this list.



I verified some of the numbers.
It seems ok.

I had a lot of help from Godfried at the Belgium club in this www.matramania.be
He helped me out where I was stranded.
The topic is in the member section so I can't link to show the pics of his car.
His car has the same disks running for a few weeks now.
Mine are a bit thinner 11.5mm and his 12.7mm they all fit perfectly.
« Last Edit: November 10, 2016, 10:36:55 pm by Oetker » Logged

I feel like Jonah, only my fish looks different.
Murena 2.2 Red 1982. Murena 1.6 black on places.
Anders Dinsen
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« Reply #7 on: September 09, 2009, 04:55:47 pm »

This is a very interesting conversion. I thinks we can expect to see the rear discs remanufactured, but until that happens, this is a feasible solution.

I have one thing, which confuses me a bit:

putting the disk and the Murena part together you need to use the same spacers (they are special) and MOUNT THEM THE SAME WAY USING LOCKTITE ON THE BOLTS, as described in the manual with 5,5 daNm.

What spacers is this?

/Anders
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1982 Talbot Matra Murena 2.2 prep 142
2017 BMW i3 "Charged Professional" 94Ah

Used to own:
2001 Renault Matra Grand Espace "The Race" V6 24v
1997 Renault Matra Espace 2.0 8V
1987 Renault Matra Espace J11 2.2
Oetker
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« Reply #8 on: September 09, 2009, 05:06:17 pm »

I meant washer.(sorry)
It is a special washer with a bend in it and special steel.
I know someone fitted a normal washer there and every week it came loose.
It is also important to use locktite there.
I will correct my post.
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I feel like Jonah, only my fish looks different.
Murena 2.2 Red 1982. Murena 1.6 black on places.
Oetker
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« Reply #9 on: September 15, 2009, 09:08:55 am »

Quote Michael
----------------
Yes, but these little springs are no more available here in CZ   so I found the solution in bigger springs from Renault, which are doing the job also very well and they are still available.
===================================================================

Do you have a example or ordering number?
I still have some in stock, but also here they are more difficult to find.
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I feel like Jonah, only my fish looks different.
Murena 2.2 Red 1982. Murena 1.6 black on places.
JV
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« Reply #10 on: November 20, 2009, 11:45:52 pm »

This is a very interesting conversion. I thinks we can expect to see the rear discs remanufactured, but until that happens, this is a feasible solution.

I have got new rear discs from Carjoy this week. Laszlo told me he had them remanufactured from Hungary
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Jan Verdam
Matra Murena 2.2S bleue columbia
Oetker
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« Reply #11 on: November 21, 2009, 01:38:42 am »

Quote
-------
Laszlo told me he had them remanufactured from Hungary
=======================================

He told me a few months back that he was busy with that, but could not find a place that was capable of doing it.
For me it's not important anymore.
I am happy with the Alfa disks.
Are they reasonable priced?
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I feel like Jonah, only my fish looks different.
Murena 2.2 Red 1982. Murena 1.6 black on places.
JV
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Posts: 137


« Reply #12 on: November 21, 2009, 09:06:07 am »

Both rear discs are replaced and also a set of brake pads for a good 300 euro, all included.
I think that's a normal price.

However, this maybe interesting:
http://cgi.ebay.nl/Bremsscheiben-Bremsscheibe-Talbot-Matra-Bagheera-Murena_W0QQitemZ310182068995QQcmdZViewItemQQptZAutoteile_Zubehör?hash=item48384ac303

According to Herman these discs are not for Murena 2.2 (see below)
« Last Edit: November 21, 2009, 11:04:54 am by JV » Logged

Jan Verdam
Matra Murena 2.2S bleue columbia
Anders Dinsen
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« Reply #13 on: November 21, 2009, 09:24:17 am »

Both rear discs are replaced and also a set of brake pads for a good 300 euro, all included.

Not cheap, but not seriously expensive either. Good to hear they are now available again! Though the Alfa conversion is well made.
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1982 Talbot Matra Murena 2.2 prep 142
2017 BMW i3 "Charged Professional" 94Ah

Used to own:
2001 Renault Matra Grand Espace "The Race" V6 24v
1997 Renault Matra Espace 2.0 8V
1987 Renault Matra Espace J11 2.2
Oetker
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« Reply #14 on: November 21, 2009, 10:58:16 am »

Quote JV
---------
However, this maybe interesting:
http://cgi.ebay.nl/Bremsscheiben-Bremsscheibe-Talbot-Matra-Bagheera-Murena_W0QQitemZ310182068995QQcmdZViewItemQQptZAutoteile_Zubehör?hash=item48384ac303
===================================================================

There is a fault in all partshops documentation.
If you order for 2.2 or 2.2 S, you get disks for 1.6.
The disks for the 2.2 series is 260mm and for the 1.6 about 234mm.
The above auction has this mistake to.
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I feel like Jonah, only my fish looks different.
Murena 2.2 Red 1982. Murena 1.6 black on places.
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