The vortec used a plastic timing cover with the crank sensor mounted in it at the lower end. The cover and gasket come as one part and are meant to be replaced when removed. Although I will say that if you clean it properly and dry it well with brake cleaner and use a quality sealer you will be ok reusing it. it is located under the water pump and against the front of the block covering the timing chain, gears and reluctor wheel for the crank sensor.
I know on my vortec engine the valve cover bolts are in the center of the cover and there is only 4, my racecar has vortec heads and my truck has standard stock heads with four bolts on thew corners
YES, It is bolted in the lower passenger side of the timing cover behind the harmonic balancer It is held in place with 1 10mm bolt
It is on the front of the engine, behind the timing cover where the timing chain and gears are. You will have to remove the front of the engine to get to it.It is not in the oil pan were they use to be. It now slides over the front of the crankshaft.
The seal on the timing chain cover must be pressed out and the replacement pressed in.
No cam sensor. Just a crank sensor on the bottom of the timing cover
I could be wrong, but I have a Vortec 350 in a GMC truck and I think the computer handles the ignition timing. If your talking about valve timing I would assume there are marks on the timing gears like the days of old, but I haven't torn the timing cover off of mine yet.
look om the passengers back side of the valve cover. You need to take off the vortec cover.
It is zero at top dead center as long as the #1 piston is all the way up on the compression stroke.
Do I need to pull the oil pan to take off the timing cover on FE 390.
The plastic cover is there soley for looks. The motor should run fine, just aswell without it. It simply covers the intake manifold and injection.
The 1987 Chevrolet Nova timing belt is located on the front of the engine. You will need to remove the engine cover in order to see the timing belt.
Directly behind the timing chain cover which is attached to the engine, on the passenger side of the engine. It is completely sealed so you cannot see it at all unless you remove the cover. It should not need replacement unless you are having a problem that can be attributed to the timing (there is no preventive maintenance replacement interval).