Just bought a 1990 camry SE anniverary ED. Came from British Columbia and in outstanding condition. The car has 270,000kms....4 cyl motor. Has received meticulous maintenence and engine was overhauled at 100,000 (something to do w/ shaft). Here's my questions How many kms should I expect on the motor if well maintained? While idling the car will slightly rev high and low.....say 1000rpms to
600rpms....what causes this? How do I resolve this?Thanks guys