The harmonic balancer on a 1990 Toyota 4 Runner is turned clockwise to loosen it. This is backwards from most bolts to prevent it from being loosened by the rotation of the engine.
The balancer is attached to a flywheel that drives the serpentine belt for the water pump, power steering, etc. If harmonic balancer doesn't work, belt won't run, and eventually, neither will the car.
The bolt was incorrectly tensioned.
on the crank behind the drive pulley and harmonic balancer
behind the harmonic balancer pully on thr right side of the engine
It is behind the very BOTTOM pulley on the front of the engine. The big pulley.
The bolt is stuck and can't seem to come off.
its broke
Harmonic balancer
It holds 5 quarts
I believe that is the harmonic balancer. If that has failed, you will get engine vibrations at the lower speeds. It should be replaced.
Not lubricated
how do you check the oil for the front transfer case on a 1990 Toyota four runner