Zulfiqar sb, you are absolutely right. There is one more thing in Pakistan, Like me, most of the people living here have limited income. So if someone like me is facing problems with his car even after spending thousands on it, then we have no option then to replace it. I tried almost everything you mentioned. But results were negative. We have markets where people are good at replacing engines and Gears. Trust me, It is very common in Pakistan and most of the people in Pakistan having cars know about these things.
Aur mere Pakistani bhai Toyota ke engine ko har jaga fit bhi kar dete hain. Aur is se bhi ziayada maze ki baat ye hai ke wo fit ho bji jaata hai. I have seen Charade with Corolla 1.3 engine, A generator built on Corolla Engine...
May be I selected a wrong mechanic, but 3 years back, even Suzuki Mechanics were not good and well trained with Liana engine. I know someone spending almost 70k to 80k in Pak Suzuki on Liana engine but the issue was not resolved but that's a separate story. May be today Pak Suzuky mechanics are trained on this technology but I still doubt.
So Corolla Spare parts rocks in Pakistan Bro....