Ausmini
It is currently Fri Mar 29, 2024 9:56 pm

All times are UTC + 10 hours




Post new topic Reply to topic  [ 12 posts ] 
Author Message
PostPosted: Mon Jul 09, 2018 3:29 pm 
Offline
998cc
998cc
User avatar

Joined: Wed Jul 08, 2015 3:29 pm
Posts: 857
Location: Brisbane QLD
Have a just split a spare box and am starting the learning curve on gearbox reconditioning , and while I am fully aware that I have a lot to learn and won't learn this on a single rebuild am willing to give it a crack !

This a box of unknown origin .. cleaned and stripped...including the synchro bearings going flying (yes i forgot) :lol:
My original box is coming back from the ship this week after being cleaned. Its the one I will be rebuilding .
I would love some insights on identifying gear condition and general condition of parts . Hopefully this will be a progressive and documented thread with all input welcome as I go.

Which rebuild kits have ones used?
Which bearings are must do's?

I have read a lot of the rebuild threads and general questions so sorry if I repeat a few of those questions as I go .

Anybody in Brisbane with special tools that I could borrow along the way will be much appreciated!

Thanks chaps!

_________________
Simonw
Brisbane QLD
1st car - 1964 Mini Panelvan 850
Previous - 1978 Leyland LS 1275 Gold
- 1969 Mini K


Top
 Profile  
 
PostPosted: Mon Jul 09, 2018 4:11 pm 
Offline
1360cc
1360cc
User avatar

Joined: Wed Oct 03, 2007 9:04 pm
Posts: 6649
Location: Melbourne, VIC
Have a read of these threads if you haven't already.

viewtopic.php?f=2&t=95454

viewtopic.php?f=2&t=77845

Also, I found this article from a 1972 issue of Cars & Car Conversions magazine to be a great help when I was a newbie mechanic.

Click twice to enlarge the image

Attachment:
CCC Sept 1972 Rebuilding Gearbox p62_63.jpg


Attachment:
CCC Sept 1972 Rebuilding Gearbox p64.jpg


Attachment:
CCC Sept 1972 Rebuilding Gearbox p65.jpg


You do not have the required permissions to view the files attached to this post.

_________________
ex-NSW Police 1970 MK II Cooper S
VMCI #43


Top
 Profile  
 
PostPosted: Mon Jul 09, 2018 5:16 pm 
Offline
998cc
998cc
User avatar

Joined: Wed Jul 08, 2015 3:29 pm
Posts: 857
Location: Brisbane QLD
You are of excelling value on this forum winabbey thank you

ImageImageImageImage

Bit rusty this box so the bits were degreased and phosphoric acid treatment hence the blue look


Sent from my iPhone using Tapatalk

_________________
Simonw
Brisbane QLD
1st car - 1964 Mini Panelvan 850
Previous - 1978 Leyland LS 1275 Gold
- 1969 Mini K


Top
 Profile  
 
PostPosted: Tue Jul 10, 2018 3:14 pm 
Offline
Yay For Hay!
User avatar

Joined: Wed Sep 08, 2004 9:27 pm
Posts: 15863
Location: Wodonga - Vic/NSW border
FYI that gearbox is from a Morris 1100S, it's also the casing (22A1288) that was used in the later MK1 Cooper S, but with different gears. The 22G231 code on the laygear you have there identifies it as 1100S (actually, just non-Cooper S) gears

_________________
did I tell you that I won a trophy?


Top
 Profile  
 
PostPosted: Wed Jul 11, 2018 6:36 pm 
Offline
998cc
998cc
User avatar

Joined: Wed Jul 08, 2015 3:29 pm
Posts: 857
Location: Brisbane QLD
Thanks SK great info.

Image

So this shaft is knackered

Image

How does one assess baulk rings?

Image

Is it customary to replace bronze bushes when refreshing a gearbox? What would be the tolerances?




Sent from my iPad using Tapatalk

_________________
Simonw
Brisbane QLD
1st car - 1964 Mini Panelvan 850
Previous - 1978 Leyland LS 1275 Gold
- 1969 Mini K


Top
 Profile  
 
PostPosted: Wed Jul 11, 2018 7:18 pm 
Offline
848cc
848cc
User avatar

Joined: Thu Sep 17, 2015 9:25 pm
Posts: 178
Location: Brisbane
Simon,
Have sent you a photo of checking baulk rings.
Clive

_________________
Clive G
1969 Mk II Cooper S
1970 MK II Cooper S
1963 Triumph Spitfire
1982 RX-7 Series 2


Top
 Profile  
 
PostPosted: Thu Jul 12, 2018 8:33 am 
Offline
religious status
religious status
User avatar

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39622
Location: near Baulkham Hills, NSW
Give the reverse idler bronxe bush about .001" clearance after press fitting.

_________________
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. :mrgreen:


Top
 Profile  
 
PostPosted: Thu Jul 12, 2018 10:46 am 
Offline
Bimmer Twinky
User avatar

Joined: Mon Sep 06, 2004 4:36 pm
Posts: 8606
Location: Brisbane
Just don`t forget (with all 3-speed syncro boxes) "mainly"--> 2x things

On the first/2nd hub-assy, there is a small "pawl" inside the hub,,, don`t forget to put it back in

& 2ndly,,, the outer-ring needs to "line-up" with the ramp to that Pawl

you will have to look closely when re-assembling the hub assy when you fit your new detent springs
there is a tint little "ramP' on one spline,,, that ramp needs to line-up (IE: the outer-ring needs to be oriented correctly) so the Pawl lines-up with that little ramp

otherwise 2nd gear selection will not-only be very difficult to engage but if/when it does it will crunch every time.
it`s a catch for young players :-)
the rest is per std issue mini gearbox over-haul,,, IE: make sure everything is absolutely spot-on,,, it`s a VERY MAJOR opperation fitting it all together,,, fitting & conecting the power-unit into the car,,, only to find you have stuffed-up some silly little thing inside the box & have to rip it all apart again to correct that :-)
cheers & have fun, & if you need a hand with advice along the way please don`t hessitate to cal me, happy to help if/where i can,
Matt 0407 135 656

_________________
No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.


Top
 Profile  
 
PostPosted: Fri Jul 27, 2018 5:44 pm 
Offline
998cc
998cc
User avatar

Joined: Wed Jul 08, 2015 3:29 pm
Posts: 857
Location: Brisbane QLD
Thanks for the great info Matt! Appreciate it .

Well got the box back from cleaning and decided to count he pinion teeth.......15. Interesting ? Means moke right ?haha what the hell is it doing in the deluxe! Potentially a very lo geared box then.

May have to source a 4 speed or might carry on faffing about with this one. Will be interesting to see what gears it has in it.

_________________
Simonw
Brisbane QLD
1st car - 1964 Mini Panelvan 850
Previous - 1978 Leyland LS 1275 Gold
- 1969 Mini K


Top
 Profile  
 
PostPosted: Fri Jul 27, 2018 5:47 pm 
Offline
998cc
998cc
User avatar

Joined: Wed Jul 08, 2015 3:29 pm
Posts: 857
Location: Brisbane QLD
ImageImage
Image


Sent from my iPhone using Tapatalk

_________________
Simonw
Brisbane QLD
1st car - 1964 Mini Panelvan 850
Previous - 1978 Leyland LS 1275 Gold
- 1969 Mini K


Top
 Profile  
 
PostPosted: Fri Sep 07, 2018 4:07 pm 
Offline
998cc
998cc
User avatar

Joined: Wed Jul 08, 2015 3:29 pm
Posts: 857
Location: Brisbane QLD
Just picked up a 4 synchro 22g846
I think it has a 3.6 diff so that will work nicely .
Actually might just rebuild this one and chuck it in .

Image


Sent from my iPhone using Tapatalk

_________________
Simonw
Brisbane QLD
1st car - 1964 Mini Panelvan 850
Previous - 1978 Leyland LS 1275 Gold
- 1969 Mini K


Top
 Profile  
 
PostPosted: Sun Sep 09, 2018 8:31 am 
Offline
religious status
religious status
User avatar

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39622
Location: near Baulkham Hills, NSW
Better idea, parts are more available than for the 3 speed. The 22G846 box is same as a 22G1128.

_________________
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. :mrgreen:


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 12 posts ] 

All times are UTC + 10 hours


Who is online

Users browsing this forum: No registered users and 35 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  

cron

© 2016 Ausmini. All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.