Expansib lar Wagia
When you say engine sounded different, I assumed it sounded rough already(meaning over heated). Please reconfirmed there is not gasket leaking before you move forward to do other things.

Open your engine oil cap and see the rocker whether is MILKY WHITE/Black like ink/Brownish.
1) Milky white, head gasket is leaking. Radiator coolant already mixed with engine oil. Your engine will jam anytime soon. Send for overhaul as soon as possible or you'll breakdown anytime soon.
2) Black like ink, engine oil burnt. Faster go change engine oil to prevent more harm to the rest of the engine part. If can, buy 1 more thank of cheap engine oil(diesel also can) + ciplak oil filter, use the cheap engine oil to flush your engine first before put back the normal engine oil. Flush I mean use the cheap engine oil for few days only then change again.
3) Brownish golden oil color, nothing happen.

Normally radiator reservoir will not over flow. If it does, meaning your radiator tank ady sumbat. Please flush the radiator immediately. Flush tank normally range between RM60 ~ RM90. But I normally prepare RM300, in case the tank kaput immediately I can change tank. Good luck.

finally u appear... help update below pls~

Insuflex TT
Time: 11am onwards
Date: 06 October 2012
Venue: PJ Seksyen 14 housing area padang (to near mahihi nest)
Extra item: bigger scissor and cutter (cut insuflex), newspaper (i supply), cloth (wipe car body), glue (mahihi will help to buy and pay him back), your own and gaga

Attendance:
1. GPMM (install)
2. mieza (install)
3. manubis (install)
4. mahihi (guide)
5. dares (spectate and help install/dismantle)
6. reaper (spectate and help install/dismantle)
7. V12Kompressor (spectate, lolololol and help install/dismantle)
8. kenjiliew (spectate and help install/dismantle)
9. iskazulka (spectate and help install/dismantle)
10. YAB (if you can come but i think datin gonna due soon rite?)(spectate and dance gangnam style)
11.
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14.
15.

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Added on September 12, 2012, 5:49 pm
can find magician knock knock and repaint, settled