i am sure montys way works very well.
but if you wish not to take the steering wheel off or shroud then try this.
remove the zero'er push knob.
remove the speedo front black retaining cover. NOTE one srew is longer than the other and upon replacement it could push the dashboard out of shape.
remove binacle cover.
and now from within the binacle area:-
undo the top plastic wire holder , this will also drop a nut and washer at the same time.. and if its fitting is totaly unglued it will come of in your hand. this also doubles up and holds the top of the speedo housing.
reach inside and remove :-
speedo cable. (black thumb clip retainer underneath at 6'oclock)
3 pin speedo sensor (push on pull off)
unclip the 3(in number) long plug in connectors.(clips on each side)
now the bit that may be different from other versions of removal.
lean in with a chubby cross head screwdriver and remove the left hand 6 bulb housing.
it is attatched by 3 small screws.
one on the far left at the top that you can see (ish)
and the other 2 situated at the extreme left and right . this are not visable .... but i will attatch a photo with my finger pointing.
now to the far right remove the management light bulb and the one next to it.
now to the front of the dash , remove the 2x round bung cover's that have a large cross head screw , screwed into a retaining nut that is clipped onto the bottom of the overall unit.
this may fall off , so listen for it !
and if it hasn't fallen of yet ... it will do when you try to put it back on.
also at this point the whole unit will drop backwards slightly.
now everything should be loose.
get a small piece of cloth and lay it over the sharp nasty metal edge running along the bottom of the dash as it's now ready to come out through there !
check the steering wheel is locked down into its lowest position and whilst using the aid of the gap in the steering wheel pull the top of the speedo perspex cover down towards the floor. BUT not to close that is scratches on the nasty metal bit.
turn the steering wheel with the speedo kind of in it to the right . so now the back white rearplastic RHS of the speedo is touching hard on the right.
now rotate the whole unit towards the left whilst twisting towards your knees.....
in the clemo book of how to remove it should now be out.
i have done this twice and it does work. it really tight but it does work without scratching the perspex front.
need telephone assistance the pm me for my number and i will talk you through it .
clemo
oh i hope this upload works...
Jim Clark S2 - 1/12. The one with the Yellow spoke wheels . No 613 on dash (pushed in to factory in wrong order 615 on tub)