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Midget G Box Fitting
Posted: Sun Jan 31, 2010 6:42 pm
by PSL184
What do I need to know about putting a Midget box into a Minor - I guess I use the origianl Minor clutch linkage etc but is there anything else?
Re: Midget G Box Fitting
Posted: Sun Jan 31, 2010 6:55 pm
by bmcecosse
Is it 1098 Spridget box ? I dunno if you need to fit a 'mechanical' carrier arm for the carbon thrust - or if it's just same as the hydraulic one. Best compare side by side!
Re: Midget G Box Fitting
Posted: Sun Jan 31, 2010 7:01 pm
by PSL184
Yes its a 1098 box (or at least it came off the back of a 1098 engine)... The input shaft loks identicle so I am assuming that I fit the Minor thrust bearing and the Minor fork. It has the boss ready to receive the pivot/linkage....
Re: Midget G Box Fitting
Posted: Sun Jan 31, 2010 11:00 pm
by bmcecosse
Oh yes - shaft will be same - it's just a matter of making sure Minor clutch release bits are used. Is the 'fork' any different to the Minor fork ?
Re: Midget G Box Fitting
Posted: Sun Jan 31, 2010 11:46 pm
by PSL184
There was no fork or linkage with the box - I was planning to fit the Minor ones and hoping they would "fit"....
Re: Midget G Box Fitting
Posted: Mon Feb 01, 2010 7:06 am
by bmcecosse
Oh yes - they will be perfect - as long as from a 1098 box.
Re: Midget G Box Fitting
Posted: Mon Feb 01, 2010 9:39 am
by mike.perry
You may have to swap the gearbox front plates over. The Midget box uses a hydraulic clutch with the linkage on the other side. You will also have to swap the rubber mountings.
Re: Midget G Box Fitting
Posted: Mon Feb 01, 2010 8:58 pm
by bmcecosse
Ahhh - didn't realise hydraulic was on other side - never worked with one you see! Learn something new every day.

Re: Midget G Box Fitting
Posted: Mon Feb 01, 2010 9:43 pm
by mike.perry
You are never too old to learn

Re: Midget G Box Fitting
Posted: Mon Feb 01, 2010 10:08 pm
by Matt
1275 spridget box went straight into my brothers car without swapping anything on the box itself over.
Re: Midget G Box Fitting
Posted: Mon Feb 01, 2010 10:41 pm
by Bazzalucas
I believe you only need change the front plate (through which the input shaft goes), if you are the proud owner of a LHD car and want to retain the mechanical clutch linkage.
Re: Midget G Box Fitting
Posted: Mon Feb 01, 2010 11:12 pm
by PSL184
I'll get the 2 boxes side by side at the weekend as it didn't look that much different (from memory). Does it have to be a 1098 clutch fork if I am using a 948 clutch.....?
Re: Midget G Box Fitting
Posted: Tue Feb 02, 2010 11:08 am
by mike.perry
I used a 1098 fork and thrust bearing on a diaphram clutch which is about the same size as a 948 clutch so it should work.
Re: Midget G Box Fitting
Posted: Tue Feb 02, 2010 1:03 pm
by Bazzalucas
I used a 948 fork and the Midget roller bearing. Works a treat.
Re: Midget G Box Fitting
Posted: Tue Feb 02, 2010 3:01 pm
by PSL184
Now thats a good idea

Re: Midget G Box Fitting
Posted: Tue Feb 02, 2010 5:43 pm
by bmcecosse
The spridgets never had a 'roller bearing' as standard - but there are aftermarket kits - equally suitable for Spridget and Minor.
Re: Midget G Box Fitting
Posted: Tue Feb 02, 2010 6:10 pm
by mike.perry
Is the roller bearing the one sold by Birmingham MMC? And if so have you seen the price of them recently?
