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 5 ?
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) with my present condition my car has this symptome
when my car engine is warmed at part throttle i feel a small stumble at low rpm ( put on a new gas filter and cleaned the injector and the fuel pres regulator) but no change runs good when cold
and at last
5) when these engine are worn out by high milages does the cylinder bore goes out of roundany reply appreciated