This is Mazda 5 2,0 LPG with 370,000 km on odo, regular change of sparks after 60,000 kms, with inspection inside cylinders.
Found out that spark 2 had some piece of rubber stuck, which resulted in oil leak. Absolutely no idea how the rubber got in there...
Cyl. 1 and 4 have carbon buildup due to damaged valve seats. 2 and 3 look rather alright, taking into consideration that this engine went 9 times around the Earth.
No repairs except regular servicing are made on the engine - fixing the valves would not be cost-effective at all. So I just drive the car and wait for the day the engine would break.
Негізгі бет mazda 2,0 LPG - inside cylinders
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