i have a geo metro 93 hatchback 5 speed man 1L 3cyl engine
204000km odometer with a bad oil comsumation of 1 quarts every 150 miles and i dont see much blue exhaust smoke from the tail pipei have twice in the pass rebuild farm tractor engine and i would like to do it myself on my car
but after i talked to what i beleive to be a quite good mechanic he told me that the failure on these 3 cyl engines are the exhaust valve witch have a bad habit to burns valve on high milage engines but on my suprized he said if i only change the bad valves and put on new piston rings my engine in no time ( within 10 to 100 miles) it would self destroy on the bottom end most likely pistons failure has he told me
now for my 4 ?
1) is it possible that a lean mixture by any probable cause shorten the engine usefull life of valve first then with new valve cause the piston to fry up ( if no correction has been taken to correct the above condition)2) is it possible for a car engine to consume a lots of oil without emiting almost any bluesmoke ( this on puzzles me :0( )
3) has anyone here ever done sutch a repaire and had the same resulte as stated above4) when these engine are worn out by high milages does the cylinder bore goes out of round
any reply appreciated