I have Cuore 07 with 120,000 running. There is blow by in the engine and also the engine oil decreases. But there is no smoke from the tail pipe in the morning cold start and still water drops come out. My cuore used to do 130 km on straight roads on CNG but now it doesn't go beyond 120. I've got it tuned by many mechanics but i feel loss of power. What may be the possible reason and what is the right solution??
This is an indication of compression lost,It could be because of weak compression rings or leaky valve.
If there is no smoke from tail pipe then it cud b leaked seal.. Speed is not the scale for measuring engine health
You have said quite a lot about the problems of car and u still think that u can get 100% from the engine ur engine is getting weaker and weaker...
I don't want to overhaul it's engine right now. How can i stop blow by or reduction of engine oil??
Avoid over speeding and use high viscosity oil.
the only solution is to overhaul, only Rings, Piece, and also change Valves.if u still not happy with this,then use ZIC oil change it after every 1500 km
your comperission ring is weak..after 120,000k.m you need to overhaul engine..if you don't want it right now just change rings and valves..if either not want to change rings just use zic oil and turn your timing to advance at 14-15 degree..by doing this you get more pickup and speed..
Did you check the PCV valve ?https://www.pakwheels.com/forums/engine-transmission-powertrain/180555-engine-blow-cuore-07-a