hi tr i got an ae86 coupe with the 4ac engine and it just started to have overheating problems.Story is the car was off timing and was running like crap but it never overheated then i took it to my friend to set the timing he time it where the crank pulley hits the 0mark on the plastic cover and after that my car started to overheat i replace the water pump i eliminated the thermostat and checked my electric fan im wondering can it be cuz he change the timing and is causing it to overheat or a clogged radiator any help will be appreciated.