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Old 11-02-2018, 07:31 PM   #1
Duckpond dave
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Gearbox casings

Can anybody tell me what the differences are in MA casings ? As far as I can work out the 1600 are slightly stronger along with a beefed up diff housing , is this correct ? Reason for asking Iím having a gripper dog box done and I need to supply an MA casing for it to be built in too
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Old 11-02-2018, 08:42 PM   #2
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There's only one casing listed on servicebox (for 106/saxo) there are two types of diff, the MA-S uses one with larger planet gears, not that this matters to you.
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Old 11-02-2018, 08:57 PM   #3
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Hi welshpug , I have seen pictures of MA gearboxes with slightly different castings on the bay of e and I’ve seen a couple of posts on different sites suggesting the 1.6 MA casings are beefier than the 1.1 , 1.4 . Before I go and press the buy it now button wanted to know if I could just buy any old MA to house the gripper kit in ?
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Old 14-02-2018, 09:36 PM   #4
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The mean difference is early to later casings. Later ones have additional ribs and also a stronger clutch arm. Not sure if it was a phase1/2 change as I think the earlier sport ones were also better.

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Old 15-02-2018, 06:07 PM   #5
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Why don’t we post some examples and build the knowledge the forum offers?

S2 Rallye Box




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Old 18-02-2018, 01:29 PM   #6
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Everyday is a school day! I thought they’re all the same!
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Old 20-02-2018, 05:19 PM   #7
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Am I the only person with photos of a gearbox?
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Old 21-02-2018, 08:44 PM   #8
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I have plenty for BE boxes but none of MA!
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Old 22-02-2018, 01:25 PM   #9
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I only have photos of S2 boxes too. I heard that 206 (and newer) MA casings were slightly different/stronger, but have nothing to back that up.
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Old 22-02-2018, 01:48 PM   #10
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many of them will be different yes, there are some Hydraulic clutch variants and solenoid actuated ones.
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Old 26-02-2018, 11:43 PM   #11
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The diff casing is the difference, for the gripper dog kit to fit some casings need milled for clearance or the diff won't sit flush
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Old 01-03-2018, 08:18 AM   #12
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Quote:
Originally Posted by 10six View Post
The diff casing is the difference, for the gripper dog kit to fit some casings need milled for clearance or the diff won't sit flush
I had this problem every time, with older and newer casings. I figured that that is their design of the diff and to fit it you need to modify the casing. This is not just with Peugeot MA gearboxes, with BE4 to, and the same problem was with Renault JC5 gearboxes that we built.
Not to mention that we had to modify the diff a couple of times for different boxes as the dimensions that they have are not accurate so the diff will not fit even though it doesn't rub anywhere.

If you want a "drop in" diff then go with Quaife.
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Old 01-03-2018, 09:46 AM   #13
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Quote:
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If you want a "drop in" diff then go with Quaife.
even then that is not always true with the BE boxes.
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Old 06-01-2019, 04:17 PM   #14
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Not that old topic but just in time - on last competition my MA case has broken badly.



I need to rebuild the box but I need to be sure that this not happen next time - my box is sort of hybrid as back of the box is from C2/C3 and has additional reinforces across diff bearing - but the front from bell housing has stay from original gearbox as C2/C3 is hydraulic clutch so didn't want to mess with that changes...

So the question is - is there any stronger casing for MA ? Or maybe someone has done some reinforcement for them and will to share how to do it ? Everyone is telling me go with BE - but this is so much work to do and is no easy way to find this shortest CP (as I been looking for my 13x64 in MA 3 years)
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Old 07-01-2019, 12:53 PM   #15
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What kind of bushing do you use in the rear mount? What about the other two engine mounts? I have seen this happen to one of our customers, but I traced it down to solid rear mount and stock-a-like other two mounts.
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Old 07-01-2019, 05:27 PM   #16
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all mounts are stiff - back is peugot sport - side one sort of filled wit alu bush - and mounting bay is welded with steel plates - gearbox one looks like the softest one as is more rubber on it - but i would say engine has not much play...

one round earlier we had some jump on the way - so obviously it doesn't help - but anyway I don't want to see it again with new casing

https://www.youtube.com/watch?v=xy_TqQnOjPw
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Old 08-01-2019, 11:56 AM   #17
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I would say that the mounts are too stiff and mismatched so the whole engine can twist. There is no absorption by the mounts and the vibrations damage the weakest part which is unfortunately the gearbox casing.

I would use proper mounts from peugeot sport. The rubber they use is really hard and not much flex, but the rubber still does the job. Unfortunatelly they are not available from Peugeot any more so you can only find used ones.
You can also use the mounts from BakerBM or Vibratechnics. Baker had some problems with the top mounts that got cut in half by the forces (we used it on a 206) but they had been revised since then.
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Old 08-01-2019, 01:44 PM   #18
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Thank you for advice - will take a look on mounts as well - but anyway I'm looking for the way to make this casing stronger.

I think that high CP is breaking that as well as so much force is trying to split gearbox - especially on racing tires. So or driveshaft or gearbox itself is breaking...
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Old 08-01-2019, 07:32 PM   #19
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As you made me confused about this mounts I have checked what I got on the car - and looks like I have full peugot sport kit fitted - exactly like one from the picture below

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