Gearbox tail shaft housing
Posted: Fri Feb 07, 2014 10:19 pm
Are the tail shaft housings identical between smooth case and ribbed versions? Thanks, John
Morris Minor Owners Club
Promoting the Preservation and Use of the Postwar Morris Minor
https://board.mmoc.org.uk/
Gearbox tail shaft housing
Page 1 of 1
Re: Gearbox tail shaft housing
Posted: Sat Feb 08, 2014 12:02 am
I'm pretty sure they are NOT. I believe there are slight differences in the selector rod arrangements. But someone who really KNOWS will be along shortly - I'm sure.
Re: Gearbox tail shaft housing
Posted: Tue Feb 11, 2014 9:11 pm
The tail shaft housing Pt No: 2A3367 appears to be have been used for the 948cc smooth and the 1098cc ribbed case gearboxes. (comment amended; see posts below)
There are changes in the part numbers for the selector rods dependent upon application.
I would suggest that you look at the MOSS Europe web site http://www.moss-europe.co.uk/ and determine what you require if at all anything. They have very good exploded parts lists for smooth and ribbed gearboxes with part numbers and applications listed below.
There are changes in the part numbers for the selector rods dependent upon application.
I would suggest that you look at the MOSS Europe web site http://www.moss-europe.co.uk/ and determine what you require if at all anything. They have very good exploded parts lists for smooth and ribbed gearboxes with part numbers and applications listed below.
Re: Gearbox tail shaft housing
Posted: Tue Feb 11, 2014 11:56 pm
Phil - they list a different part number (22A474) for the rear casing on the ribbed casing in the Spridget section..... Maybe that is only for the 1275 engine. On the earlier 948/1098 parts list - they don't give the rear casing a part number at all! 
Re: Gearbox tail shaft housing
Posted: Wed Feb 12, 2014 8:05 am
bmc
You are correct in that the Moss parts list quotes 22A474 for the late 1275cc Midget/Sprite gearbox rear extension and have amended my post above accordingly.
The part number 2A3367 for the 948cc/1098cc Minor gearbox extension is listed in the Moss Minor gearbox external parts section item No: 78. There are no comments/notes accompanying this parts listing other to say that it is No Longer Stocked (NLS).
You are correct in that the Moss parts list quotes 22A474 for the late 1275cc Midget/Sprite gearbox rear extension and have amended my post above accordingly.
The part number 2A3367 for the 948cc/1098cc Minor gearbox extension is listed in the Moss Minor gearbox external parts section item No: 78. There are no comments/notes accompanying this parts listing other to say that it is No Longer Stocked (NLS).
Re: Gearbox tail shaft housing
Posted: Wed Feb 12, 2014 10:09 am
Yes - but I suspect the 1098 ribbed and 1275 ribbed casings are identical - and likely need the same later tailhousing - I understand the upgrades to the Spridget late 1098 and 1275 boxes are only internal - bearings and gear angles and ratios -but frankly I'm only guessing ! (As usual, many will say..... 
) 
) Re: Gearbox tail shaft housing
Posted: Thu Feb 13, 2014 11:24 am
Regarding the main case of the gearbox (1098cc/1275cc) and taken from the Moss Parts list:-
The part number of the 1275cc main gearbox case is 38G313.
" " " " " 1098cc " " " " 6GR52.
" " " " " 948cc " " " " 28G87.
So there is obviously some difference between the 1098cc Minor main gearbox case and the 1275cc Midget/Sprite main gearbox case.
As I said in my post above there are differences in the selector rods (see Moss parts list) plus other differences that bmc alludes to in his posts.
The part number of the 1275cc main gearbox case is 38G313.
" " " " " 1098cc " " " " 6GR52.
" " " " " 948cc " " " " 28G87.
So there is obviously some difference between the 1098cc Minor main gearbox case and the 1275cc Midget/Sprite main gearbox case.
As I said in my post above there are differences in the selector rods (see Moss parts list) plus other differences that bmc alludes to in his posts.