You have to remove the timing belt and the crankshaft pulley if you want to get access to the oil pump. The oil pump itself is just behind the crankshaft pulley.
You can find it on the crankshaft pulley and there is a hole in the camshaft pulley which must be line up with the mark on the cylinder head at TDC.
The crankshaft itself has no marks, the crankshaft pulley has one, it's white color. The same is true for the camshaft, it has no marks. But the camshaft pulley has a hole in it. That hole must alighed with the mark behind the pulley and the crankshaft should alighed with its own mark and the camshaft in the same time.
The crankshaft position sensor must be behind the timing belt cover next to the crankshaft and behind the crankshaft pulley. The camshaft position sensor is again under the timing belt cover next to the camshaft and behind and the camshaft pulley. Is it the same place in 2000 Camry 4Cyl? Do you have pictures of the location? Hard or easy to replace, and what tools do I need? Thanks alot
Yes, you need a new pulley.
It should behind the crankshaft pulley, just next to the timing belt gear.
It is called a spanner
With the bolt facing you, you should turn the bolt anti-clockwise to loosen it. It will be a right hand thread.
I think they are one. Harmonic balancers usually are integrated as the main driving pulley in a serpentine system. Call a toyota parts department (dealer) to make sure.
The 2002 Toyota Camry belt tensioner pulley can be loosened by loosening the pulley nut. The pulley nut is located in the center of the pulley.
You need to remove the belt pulley, then timing belt, its pulley sitting on the crankshaft. After that you will gain access to the seal. The seal has to carefully pried out. Make sure that you do not scratch the crankshaft surface as well as the seal seat in the engine body. Put a little bit of clean oil on the seal before installing it, it will make your life significantly easier. Make sure that you do not damage new seal when you are installing it.
The 1990 Toyota Camry timing marks can be found on the main pulley on the front of the engine. The timing marks will be scattered around the outside of the pulley.