I have an option to purchase an 1100 motor fitted to a 4 synchro remote box. Is it possible to use this with a pudding stick gear stick and if so how much buggering around is it?

_________________
Your silliness has been noted.

If you have an existing remote change gearbox you need all the parts here. They very simple to fit, you could even do the change with the engine in the car

They were only used on basic spec minis, vans and mokes for a few years (once the 4 synchro was introduced until the rod change)

https://www.somerfordmini.co.uk/manual- ... earchanges

There’s some photos of how they look on this thread
viewtopic.php?f=5&t=101964

_________________

Thanks for the reply Tim, if I go down this path can I use the existing 850 gear shift hole? In other words, not altering my existing floor pans. Would you happen to know if these part are available locally?

_________________
Your silliness has been noted.

I think the hole should be in the right spot but I haven’t tried this myself. All the parts should be available locally (used) but might be a bit tricky to find

_________________

Another alternative is fit the 850 differential housing to the 4 synchro box.
But it's not always simple because the bearing bores may not align perfectly. They were machined with the gearbox case.
I've done 4 over the years but had to remachine 2 of them to fit. Handy that I have a mill.

Edit
BTW the 850 original shift is the magic wand.
The later one in Tim's pics is affectionately called the puddin' stirrer due to how it rapidly develops slop from new. It's agricultural compared to the proper magic wand.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

I did this conversation to my 850 to make the interior look more original even though it had an 1100S and 4 synchro box.
I was lucky enough that the diff housing didn’t need machining as described by Kevin above.

What I liked about this is that there are less linkages in the gearchange and therefore less wear points and it had a very positive change.

Phil

_________________
Find a job you love and you will never have to go to work !

I like the idea of this, is it only the diff housing that is needed? Now just to find another 850 diff housing.

_________________
Your silliness has been noted.

Hi Doc great to see you still on here! Yes im liking that idea I guess I need to see which parts are the easiest to find.

_________________
Your silliness has been noted.

Essentially you just need to swap the diff cover to an 850 type. You’ll also need the vertical shift rod which has a cup on the end. If you already have an 850 gearbox you could use these parts

They will often bolt right up, but the diff cover is line bored to match a specific case so they might not line up properly without machining. You’ll also need gaskets etc

While you have the diff cover off I’d swap the bronze bushes for the shift rod as these wear out and cause slop

_________________

Hi Tim, is this what you mean,
https://www.bmiparts.com.au/product/sel ... van-2-hand

_________________
Your silliness has been noted.

Yes that’s the shift rod. If you need to get all the parts you need:
Diff cover
Shift rod
Anti rattle plunger, spring, cap
Bottom plate, set screws and spring washers
Gearstick, retaining plate and set screws

And I’d suggest replacing the bushes in the diff cover

_________________

Have a look on youtube : Med race technologies - Project 63 part 13 . 4spd synchro box and 850 diff housing (they do install a s/c dogbox, but same principle.)

_________________
1970 Mk2 Cooper S under restoration

Great video thanks for the reference.

_________________
Your silliness has been noted.

So does this sound about right in addition to the actual diff housing,

1. 22A418 Gear Lever Retainer, Mini 850 Early model,
2. WL600051 Spring washer gear leaver retainer to diff housing X2
3. Sh505051 Bolt, Gear lever retainer to diff housing mini 850 x 2
4. 22A1405 Gear lever early mini 850 slot on side of ball
5. 2A3502 Bush fitted to diff housing for selector shaft
6. 22A305 Cover plate bottom of 850 type diff housing
7. 2A3602 Locating pin early mini
8. 22A84 Gear lever detent plunger
9. AEG3123 Spring detent plunger to cap nut
10. AEG3122-S Washer between cap nut and gearbox case
11. AYA3049-S Gear lever detent cap nut
12. 22A305-S Cover plate bottom of 850 diff housing
13. 22A418-S Gear lever retainer x 4
14. 88G553-s Selector Shaft
15. 2A3467 Nylon bush fitted to selector shaft
16. 2A3390 Spring gear lever anti rattle

_________________
Your silliness has been noted.

I had it done in mine, unfortunately I can’t tell you how, as it was done by Readspeed in Bris when I had the 1275 & 4 synchro gb installed. I wanted to keep the original magic wand in same position and they did it no problems. Lovely shift, very direct, no slop and maintains originality.