Originally Posted by
kermitt
Assume you got this fixed in the end but what turned out to be the problem?
Reason I ask is I am having very similar probs to what you describe. Works when cold but a doesn't as soon as its hot.
Am hoping the fluid is just low but I have no idea how old the box actually is but does not crunch or whine.
No I didnt fix it! The main shaft snapped clean in two a little while later when doing a 3rd gear flat out run so I scrapped the box

lol
IMO it was an old shit box and had not been rebuilt as it was supposed to be.
My Sport Ka box has been spot on though