Myford gearbox stripdown

[westlin]

My selector has broken on my super 7 gearbox (the casting). To remove it I need to remove the input shaft housing to take the selector off. Can any one advise the best way to remove, I've removed the input shaft and the Change gear quadrant already but how do I get the housing out.

Thanks

[dscott]

Mine is still rusted solid so if I rebuild I only have one speed (He jokes)
That is the trouble when coming away from the Photo joke section!!

The hidden screw is on the bottom left hand of the box.
You need to take out the black bung at the front and stem the flow of oil.
A long Allan key will remove. 3/16 or the usual size.

I had to fiddle the 2 top screws then take the top off once I had better access and more leverage.
Mine took about a month to dismantle.

David and Lily.

[westlin]

Is that the bottom bolt that holds the gearbox to the lathe (2 more at the top). Are you suggesting I need to take the gearbox off to remove this shaft?

Thanks

Stephen

[westlin]

Progress, so shaft now loose, for future reference to the wider audience there are 2 retaining screws hidden below the top cover, left is a grub screw the right is a flat headed peg end screw, I ended up drilling it out as the slot was shot. Now the next challenge. The selector has a gear attached, this gear sits in a cut out section of the input shift housing, I can't seen away to remove the gear to then allow the shaft to be withdrawn to allow the removal of the selector lever. Any suggestions

[uuu]

On the exploded diagram, it's got a taper pin in a boss on the gear.

Diagram

Wilf

[westlin]

Yep, I can see the pin but I can see no way of getting out without the gear box off. May be able to get through the oil drain hole at the bottom, but I'm not turning the whole lathe upside down.