Morris Minor Owners Club

hi all
can anyone give me any info on mg midget gearboxes
i have the chance of a mg midget box with an output shaft number 22g171
it has hydraulic clutch which make me believe its defo a midget box unless any knows different
am i right in thinking its a 1098 midget box not a 1275(which I'm after)
any help would be great
Stu

Have a look at this data list compiled by IslipMinor
From the above data the gearbox you have been offered appears to be a 1098cc Minor gearbox with a MG Midget clutch release arm fitted.

The most obvious identification as regards the 1275cc gearbox is that it has a reverse light switch fitted to the remote housing by the gearstick.

ok mate
cheers for the diagram very helpful
the box im looking at doesn't have a rev switch set up
and going by the info on the diagram its a 1098 minor box as the shaft number shows?
it was the hydraulic clutch that threw me

'A' Series gearboxes get moved around the BMC range with impunity so what you have been offered is not unusual but it is always best to ask if not sure.
Phil

yeah hence i thought i would check with someone with more know how than me
many thanks

The 1098 box and hydraulic clutch were fitted to the MkII A40 Farina. All the parts are the same as the Minor, with the exception of the clutch release arm.

I have attached an updated version of the list that Phil shows, and as you can see the ratios on the Sprite/MG version of the box are closer than the Morris, Austin etc. Also the 1275 version has a higher torque capacity than any of the others, oh, and a reverse light switch!

Not all the 1275 Midgets had reversing lights factory fitted. Mine didn't, so it never had the switch or fitting for one. That came a year or two later

That's interesting. The earlier BMC Parts Manual for the Sprite/Midget lists the switch with a change point of 12CC/Da/H12411 on, but nothing shown on the exploded parts diagram, whereas the later BL Parts Manual simply states '1275 Engine' for the reverse light switch with no introduction date!

The 1275cc Midget was introduced in late 1966. Mine was early 1967. A year or so after that, reversing lights became a standard fitting - possibly at the same time as the MGB also gained them(?) but there was definitely a year or two of 1275 Midget production when the earlier type remote housing was fitted without the facility for the automatic switch.
Of course, a lot of MGs have had them retro-fitted .
One of my Minors has the engine and gearbox from a Midget fitted. The previous owner had purchased an exchange "reconditioned MG Midget gearbox" from a well known MG specialist shortly before I bought it. I have the receipt. The gearbox supplied is a standard Minor 1098 'box however

According to MOSS

https://www.moss-europe.co.uk/switch-re ... soc=406002