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| Mini Matic to manual conversion https://ausmini.com/forums/viewtopic.php?f=2&t=94886 |
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| Author: | Good Times [ Sat Feb 18, 2017 10:39 pm ] |
| Post subject: | Mini Matic to manual conversion |
Hi, just wondering if anyone's done this or knows what kind of a job it is? I understand that you'd want to do the entire engine/box together to save on major machining work. Also, going from a 998 matic, are you best sticking to a 998 manual, or would you manage an 1100 or 1275 without too much additional work? Cheers! |
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| Author: | 1018cc [ Sun Feb 19, 2017 6:44 am ] |
| Post subject: | Re: Mini Matic to manual conversion |
Here is an article written by our own Drmini (on this forum) http://members.tripod.com/austin_america/id82.html if you want to see how to convert the block to manual as the oil ways are different. As for going from an auto to manual - I'll have to let someone else chime in as I've never personally done it. |
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| Author: | drmini in aust [ Sun Feb 19, 2017 11:11 am ] |
| Post subject: | Re: Mini Matic to manual conversion |
I wouldn't bother converting a 998 auto block to manual when there are piles of manual ones about. As for a manual gearbox, any 4 synchro box, either remote shift or rod change will take a 1275 motor without mods. You will need a 1275 primary gear, and change the diff ratio to a 3.44 if not already. You can use the `matic subframe (which is wider) if you pack the engine mounts up 3/8", but it's easier to fit a manual subby. |
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| Author: | TK [ Sun Feb 19, 2017 1:55 pm ] |
| Post subject: | Re: Mini Matic to manual conversion |
There is no need to change the diff ratio. I found it easier to put a spacer behind the manual mounts in an auto subframe rather than change the whole subframe, re-pump the hydro and get an allignment. |
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| Author: | drmini in aust [ Sun Feb 19, 2017 4:46 pm ] |
| Post subject: | Re: Mini Matic to manual conversion |
Depends on diff ratio in the box you get. Most rodchange boxes here were 3.44, but a 4 synchro remote box could be 3.76, 3.64, or 3.44. or even 4.13 if out of a Moke. |
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| Author: | TK [ Sun Feb 19, 2017 5:00 pm ] |
| Post subject: | Re: Mini Matic to manual conversion |
So there is only a need if the box is out of a Moke. |
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| Author: | drmini in aust [ Sun Feb 19, 2017 5:28 pm ] |
| Post subject: | Re: Mini Matic to manual conversion |
Would you run a road 1275 with a 3.76, it would be geared like an 850. OK for a track car or a streetbound racer. |
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| Author: | peterb [ Sun Feb 19, 2017 5:59 pm ] |
| Post subject: | Re: Mini Matic to manual conversion |
You'd be wasting your time swapping a 998 auto to manual, it wouldn't go any better, making it a bigger engine is the answer. If you get a complete motor/box, I think the seller would be able to tell you what it came out of. If not you can do a ratio check turning motor over, count turns. Other that that its the clutch m/c and shifter, but they're a straight bolt in job. |
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| Author: | TK [ Sun Feb 19, 2017 8:54 pm ] |
| Post subject: | Re: Mini Matic to manual conversion |
"Would you run a road 1275 with a 3.76," Yes. I ran my early Clubby fine with it. |
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| Author: | bnicho [ Wed Mar 01, 2017 9:51 pm ] |
| Post subject: | Re: Mini Matic to manual conversion |
You will find the matic subframe is rather rare these days and hence you will find a willing buyer should you remove it. I frequently see adds from people looking for a Matic subframe. Cheers, Brett. |
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| Author: | s-c1293 [ Thu Mar 02, 2017 5:33 am ] |
| Post subject: | Re: Mini Matic to manual conversion |
If you do go ahead and swap subframes, I know someone here in Melbourne who will buy the Auto frame off you. |
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