Hi ,
My wira started to eat black oil for every 5k run , i need to top up my black oil at the last 4k in order to keep up..
initially the problem is even worse after we diagnose it is due to cooler issue with water tank ..(imaging i need to check my oil level almost every odd day).
i asked my mechanical to check , he response that it might be some wear and tear happen and ask me to change to a thinker oil so this round.
I asked him whether did i need to do a top overhual or engine overhual..but he said not yet ....any advise ?
Bro. mghong,
Not sure why you mention water tank got direct relation with engine oil consumption?
Anyway, Oil consumption can be from many issues.
Have you check for any leakages? Wira top gasket prone to leaks
If exterior no sign of leaks then should be wear and tear and that means piston or piston rings worn. How much is your oil consumption, meaning at 4k km top up how much oil? If only a little should be okay. Thicker oil may help, but engine will feel heavier.
Check spark plugs, is it oily?
If need to do overhaul, need to open the head, check how loose are the pistons, and cylinder wall for wear. If piston slightly loose and cylinder wall still good, just do a piston ring change. If piston is loose and cylinder wall is worn, need full overhaul, means change pistons and rings and rebore cylinder.....