My Jack Knight 5 Speed box has broken
Turbo Mini Forums

Hi, Im new to the site and dont actually have a turbo mini. Im driving a mpi cooper s with a 5 speed helical box. My layshaft has sheared. I have the new lay shaft, but dont know how to get the old one out...
It runs from one end of the box to the other and is splined.
If anyone could help me out...
Cheers
Martin

I have a word document with pictures on how to strip the box -s o if there is someway it could be uploaded/hosted I am willing to share itwith others on the forum. I am not going to email it to individuals however

On 5th Sep, 2011 Vegard said:
I stand corrected. You should know

email the file to alex@dorkish.com and he'll stick it on the TM server. This is better than it going on some random persons own server only to dissapear some months later...

Martin, upload some pictures of the box to show us what you mean mate.

Three photos of the box here, the second photo shows the bearing underneath the idler gear where the layshaft runs, there should be a running surface in there but thats the bit that sheared off the shaft.

Any joy with the word document?

Cheers


**edited to show pictures Dan**

Edited by SumpNut on 2nd Sep, 2006.

Not ideal but i have converted it into a web page

On 5th Sep, 2011 Vegard said:
I stand corrected. You should know

Awesome, Not too hard a job to change the layshaft after all...lol... Thanks a lot for all of your help guys.
Martin

Your hardest bit might actually be getting a new layshaft out of JK...

lol, i already got one from them, came last week, last one in stock... and a hell of a lot cheaper than everywhere else too.
Thanks again guys

i think it is actually, but im not sure... lol...
just hope i don't snap another.
They've stopped making the box and have another under way in its place i believe

The main shaft is completely stuffed too, the case hardening has worn away...
might go four speed for a bit...

Edited by Dangerous on 5th Sep, 2006.

Metro turbo weekend driver,Mini turbo in the making again!

This man can fix any shaft if you cross his palm with silver (or suitably printed folded pieces of paper)...

Should that fancy signature read "MY 5 speed is Broken" ???????????

funnily enough, a mate of mine bought a 5 speed and was told it was the "last one"

I wonder if it's like my boss telling me i had the "biggest pay rise in the company" and then finding out he's said exactly the same thing to nearly everyone else....

My dad should be able to get the shaft welded and machined to create a new bearing surface, in the mean time (for this year at least) I will go four speed to get me on the road before uni and my moms mini in the garage...
Does anybody know the whereabouts of Jack Knight, since i bought their 'last shaft' they have dissapeared off the face of the earth.

Welded then machined?

Wouldnt you be better off getting it electoplated or something to stop the heat from the welding process messing about with the grain structure?

metal spraying i think my dad called it.
How expensive are you benross

jack knight are not answering the phones or anything at all... can't get through. i bought a head gasket from minimine silver coloured one side, copper the other but theres only a number on it,no top or front, i got the direction ok i think but does the copper go up or down?

Dont use it martin, get a proper head gasket, payen bk450 is the dogs bits and its not expensive, others and myself have had bad experiances with cheap gaskets.

itll be fine dan... its on now anyway