Sugar Cube

From Celica GT-Four / Alltrac - ST165 ST185 and ST205

Sugar Cube Rotation - Not a dance, but to 'tighten up' worn gearbox linkage 165, 185 and 205

I did this on my 185, 165/205s may be a little different, but only in the removal of stuff from around the working area, the gearbox linkages are the same, as is the cube. Part number 90389-10009 if you find yours is totally knackered. This often cures poor shifting, it is a first area of attack before blaming the gearbox for poor shifting.

Time taken - 30 minutes, 45 at most on a 185.

Tools needed: A screwdriver/socket to remove intake hose clip from AFM. 10mm socket and ratchet with extension (for ease) for airbox removal (3 small bolts inside lower half on a 185) 14mm socket and ratchet with extension (for ease) to remove bolt (1)

Preparation - Unclip all connections to the AFM if you have one.Remove the airbox top half then unscrew the bottom half and slot it out, taking the AFM (185/165) with it.

Assuming you're working from the inlet side of the engine bay, the following points match numbers in the attached picture...

1) Unbolt this bolt - 14mm.

2) Pull this linkage towards the nearest wing - towards you. You may need to lever it as the other bolt under the engine/box mount cant be reached as far as i can see. Light leverage against the box will move it.

3) The green arrow at 3 shows the pin that the cube sits on. Catch the cube as it comes out of the upper linkage and pull it upward off the pin, noting the direction of installation.

You should now see wear on the cube caused by the linkage parts to the front and rear of the cube when its in situ. Now you should be able to see that if you:

4) Rotate the cube through 90 degrees and replace on the locator pin in this new orientation - the worn sides should now be visible as face of the cube that is parallel to the wing.

Now all you have to do is lever the linkage back, the opposite to what you did in part 2. Line up the hole for bolt and re-tighten bolt to a good hand tight (check manuals for torque if you want to do the job properly). It can be tricky to put the bolt back in without crossing it as the socket you use tends to get pushed offline by the mount. Et Voila. If you had visible wear notches on the cube you should notice a good improvement in the shifting.

As taken from a site by CoyoteBoy.