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suffolkpete
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« Reply #77 on: July 22, 2009, 09:31:44 pm » |
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Come on, keep up at the back there ![Grin](http://www.matrasport.dk/forum/Smileys/default/grin.gif) I refer you to Roy's original post. However, it was not just a straight swap of fifth gear pairs, which could have been really easy and cheap. The two Citroën cars mentioned above, obviously had problems with the original end case bearings and gears, and so they redesigned it and provided a kit for the dealers to repair the gearboxes when they were under warranty. It is this kit that I used to buy, to uprate the Murena. It consists of new bigger end case bearings and retaining plate, new spacers and bushes, new fifth gear pair, a new synchromesh unit and two shaft nuts.
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Oetker
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« Reply #81 on: July 23, 2009, 02:28:38 pm » |
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Some additional info, for people looking for this sets. It seems there are 2 types of CX2500 GTI turbo. Type 1 has the gears on my pics. Aldo the toothcount is 31-46, they have a different diameter ,and wil not fit the Murena gearbox. Type 2 has the gears in Michaels pics. This is what is needed. I found a compleet set for €150.- and go for the badge ![Grin](http://www.matrasport.dk/forum/Smileys/default/grin.gif)
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« Last Edit: July 23, 2009, 02:30:23 pm by Oetker »
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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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JV
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« Reply #84 on: July 23, 2009, 10:12:42 pm » |
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Ask for CX2500 GTI Turbo2. If youre interested Jan, I maybe have found a second set. I pulled all the strings I could find, and have now several reactions.
Yes, I am interested. Jan
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Jan Verdam Matra Murena 2.2S bleue columbia
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roy4matra
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« Reply #87 on: July 25, 2009, 06:40:40 pm » |
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If you look at my pics, there is a difference compared to the gears of Michael. I think I have a pair of the Turbo type 1 (early models) and maybe no modification of the fork is needed.
No, a modification to the selector fork will always be needed, since the 46 tooth gear is approx. 2 mm larger diameter than the original 45 tooth gear. After seeing Micheal's picture of the two forks - it reminded me why the Citroën one doesn't fit and you need to modify the Murena one. The bolt hole and boss are in the wrong place on the Citroën fork. The Murena end casing is less deep and so there is less space inside, so the Murena fork has the end angled off and is mounted on the shaft in a different position to fit inside the smaller end case. As for whether the early (type 1) Citroën gears will fit - I'm not sure, since I have never had any to measure accurately. It is possible, but you would need to check not only the diameters, but the centre holes where they fit on the shafts, the width or thickness of the gears and the centre bosses, and the relationship to the other parts when fitted. With the kits I obtained, since the bearings were bigger all the dimensions had to alter, and you were provided with new bushes, collars and spacers so that the new gears would line up correctly. So please bear in mind that if you are taking parts from a Citroën box, you may need these bushes, collars or spacers as well as the gears. The fork you won't want. Roy
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« Last Edit: January 29, 2019, 11:56:50 am by roy4matra »
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Oetker
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« Reply #88 on: July 26, 2009, 08:41:01 am » |
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As for whether the early (type 1) Citroën gears will fit - I'm not sure, since I have never had any to measure accurately. Roy
The Citroen garage where I ordered a set told me there was a difference in diameter. I have to see for myself as I collect this set. They opened a Turbo II box specialy for me. I will compare myself when I am there to collect.
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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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