Ausmini
It is currently Mon Jul 14, 2025 9:29 am

Board index » Mini Chat » Mini Chat

All times are UTC + 10 hours




Post new topic Reply to topic  Page 1 of 2
  [ 19 posts ]  Go to page 1, 2  Next
  Print view Previous topic | Next topic 
Author Message
cooperess
 Post subject: Diff Cage AYG3037
PostPosted: Thu May 31, 2018 4:44 pm 
Offline
1098cc
1098cc

Joined: Wed Sep 30, 2015 9:38 am
Posts: 1572
Location: Brandy Hill, NSW
Please advise what the above came from.
Top
 Profile  
 
winabbey
 Post subject: Re: Diff Cage AYG3037
PostPosted: Fri Jun 01, 2018 1:14 pm 
Offline
1360cc
1360cc
User avatar

Joined: Wed Oct 03, 2007 9:04 pm
Posts: 6750
Location: Melbourne, VIC
Haven't found an answer yet but still looking. Where did that part number come from? Cast into the part?

_________________
ex-NSW Police 1970 MK II Cooper S
VMCI #43
Top
 Profile  
 
cooperess
 Post subject: Re: Diff Cage AYG3037
PostPosted: Fri Jun 01, 2018 1:43 pm 
Offline
1098cc
1098cc

Joined: Wed Sep 30, 2015 9:38 am
Posts: 1572
Location: Brandy Hill, NSW
Attachment:
Mini Diff Case AYG3037-MOWOG A.jpg
Here is a helping picture.


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

Top
 Profile  
 
simon k
 Post subject: Re: Diff Cage AYG3037
PostPosted: Fri Jun 01, 2018 2:50 pm 
Offline
Yay For Hay!
User avatar

Joined: Wed Sep 08, 2004 9:27 pm
Posts: 15912
Location: Wodonga - Vic/NSW border
can you do another couple of general pictures - doesn't look especially like a mini item from this angle

_________________
did I tell you that I won a trophy?
Top
 Profile  
 
cooperess
 Post subject: Re: Diff Cage AYG3037
PostPosted: Fri Jun 01, 2018 3:55 pm 
Offline
1098cc
1098cc

Joined: Wed Sep 30, 2015 9:38 am
Posts: 1572
Location: Brandy Hill, NSW
Attachment:
Mini Diff Case AYG3037-MOWOG A 002.jpg
Attachment:
Mini Diff Case AYG3037-MOWOG A 001.jpg
More pictures


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

Top
 Profile  
 
winabbey
 Post subject: Re: Diff Cage AYG3037
PostPosted: Fri Jun 01, 2018 3:59 pm 
Offline
1360cc
1360cc
User avatar

Joined: Wed Oct 03, 2007 9:04 pm
Posts: 6750
Location: Melbourne, VIC
Found it on an engineering drawing, shown as being for the Morris 850 and 1100, introduced into production in Aug 1963.

The letter Y in the part number prefix means it is an Australian produced part. The UK part number is BTA145 which strangely appears in the Oz parts books instead of the AYG3037.

If you need anything further let me know. I have the BMC drawings for the components and complete diff.

Cooperess - I note the file name for your photos says Mini. Were you looking for a better description, perhaps of the exact Mini model(s) it applies to?

_________________
ex-NSW Police 1970 MK II Cooper S
VMCI #43
Top
 Profile  
 
cooperess
 Post subject: Re: Diff Cage AYG3037
PostPosted: Fri Jun 01, 2018 4:18 pm 
Offline
1098cc
1098cc

Joined: Wed Sep 30, 2015 9:38 am
Posts: 1572
Location: Brandy Hill, NSW
Are these diff cages interchangeable with all Mini's?
Top
 Profile  
 
timmy201
 Post subject: Re: Diff Cage AYG3037
PostPosted: Fri Jun 01, 2018 4:23 pm 
Offline
1275cc
1275cc
User avatar

Joined: Sun Apr 29, 2012 1:19 pm
Posts: 4501
Location: Wollongong, NSW
The later A+ diffs used different thrust washers with tangs on them. This prevents the thrust washers spinning and ruining the diff cage. Otherwise I think they're all interchangeable.

_________________
Image
Top
 Profile  
 
cooperess
 Post subject: Re: Diff Cage AYG3037
PostPosted: Fri Jun 01, 2018 4:30 pm 
Offline
1098cc
1098cc

Joined: Wed Sep 30, 2015 9:38 am
Posts: 1572
Location: Brandy Hill, NSW
I also have BTA142 diff case, is that suitable for the Mini?
Top
 Profile  
 
winabbey
 Post subject: Re: Diff Cage AYG3037
PostPosted: Fri Jun 01, 2018 4:32 pm 
Offline
1360cc
1360cc
User avatar

Joined: Wed Oct 03, 2007 9:04 pm
Posts: 6750
Location: Melbourne, VIC
cooperess wrote:
Are these diff cages interchangeable with all Mini's?

The Oz Mini parts books shows BTA145 as being used in all Mini models, from 850 through to Cooper and Cooper S. I can't comment on whether this applied in practice.

_________________
ex-NSW Police 1970 MK II Cooper S
VMCI #43
Top
 Profile  
 
cooperess
 Post subject: Re: Diff Cage AYG3037
PostPosted: Fri Jun 01, 2018 4:47 pm 
Offline
1098cc
1098cc

Joined: Wed Sep 30, 2015 9:38 am
Posts: 1572
Location: Brandy Hill, NSW
winabbey wrote:
Found it on an engineering drawing, shown as being for the Morris 850 and 1100, introduced into production in Aug 1963.

The letter Y in the part number prefix means it is an Australian produced part. The UK part number is BTA145 which strangely appears in the Oz parts books instead of the AYG3037.

If you need anything further let me know. I have the BMC drawings for the components and complete diff.

Cooperess - I note the file name for your photos says Mini. Were you looking for a better description, perhaps of the exact Mini model(s) it applies to?
It would be interesting to see the BMC drawings to check my diff cases. Both diff cases AYG3037 & BTA142 came from Mini gearbox diff's.
Top
 Profile  
 
drmini in aust
 Post subject: Re: Diff Cage AYG3037
PostPosted: Fri Jun 01, 2018 8:15 pm 
Offline
religious status
religious status
User avatar

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39754
Location: near Baulkham Hills, NSW
John Smidt told me these were made here by Borg Warner. Primarily for Morris 1100 production but also Mini.
(Edit) he said they were red like this one is.
That number on it is the casting number, not part number. Google 1 either side of it.

_________________
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:


Last edited by drmini in aust on Sat Jun 02, 2018 12:13 pm, edited 2 times in total.

Top
 Profile  
 
cooperess
 Post subject: Re: Diff Cage AYG3037
PostPosted: Sat Jun 02, 2018 11:06 am 
Offline
1098cc
1098cc

Joined: Wed Sep 30, 2015 9:38 am
Posts: 1572
Location: Brandy Hill, NSW
Googling BTA142 and AYG3037 has come up with zero responses.
Top
 Profile  
 
winabbey
 Post subject: Re: Diff Cage AYG3037
PostPosted: Sat Jun 02, 2018 1:10 pm 
Offline
1360cc
1360cc
User avatar

Joined: Wed Oct 03, 2007 9:04 pm
Posts: 6750
Location: Melbourne, VIC
cooperess wrote:
Googling BTA142 and AYG3037 has come up with zero responses.

BTA142 appears in the Morris 1100 parts book, and seems to be very similar to BTA145. No idea what the difference is.

You can't find AYG3037 because BMC used the UK part number BTA145 in parts books and other external references. See the drawing below.

Attachment:
AYG3036 Differential Case Complete BTA145 wm.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  
 
cooperess
 Post subject: Re: Diff Cage AYG3037
PostPosted: Sat Jun 02, 2018 4:45 pm 
Offline
1098cc
1098cc

Joined: Wed Sep 30, 2015 9:38 am
Posts: 1572
Location: Brandy Hill, NSW
Thanks winabbey
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 2
  [ 19 posts ]  Go to page 1, 2  Next

Board index » Mini Chat » Mini Chat

All times are UTC + 10 hours


Who is online

Users browsing this forum: Phil 850 and 83 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:  

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