The engine was torn down by someone who didn't align or mark anything
With the head off, the bottom end doesn't know compression from exhaust from squat. The crank just keeps pushing the pistons up and down. You set the #1 cylinder at the top of travel, the mark on the pointer scale must be at zero, then when you have the head on with the camshaft sprocket on its mark, and the timing belt or chain on, you should be at TDC on the compression stroke. To verify, both valves on #1 should be closed-the camshaft lobes for #1 should be more or less pointing up-away from the valves.
See? The valve train is what determines compression stroke vs. exhaust stroke. On compression, both valves are closed. On the exhaust stroke, the exhaust valve will be open. As long as you get the camshaft sprocket on the right mark and the crank sprocket at zero-or on its mark-the timing should be right.
Testimonial: "I will have to remove the timing gear cover to get to the crankshaft sprocket marks to zero. I cannot go off the timing marks on the crank pulley? Am I correct?"
No, you can use the crank pulley notch or marks. Only if unsure the timing is correct, would you need to take the timing cover off. When you are on the mark on the crank pulley, you are at TDC of either the compression stroke or the exhaust stroke. The crank turns two revolutions for every single revolution of the camshaft . To find the compression stroke, take out #1 spark plug, put your finger over the hole, and have someone just bump the starter over, turning the engine crank over a little at a time. As soon as you feel pressure building up on your finger-you are starting the compression stroke-so stop bumping the starter. Look at the crank pulley mark-it should be approaching the zero mark. You can turn it by hand with a socket on the crank pulley bolt. Turn it on clockwise around until the zero mark lines up-TDC of compression stroke. If your belt or chain is on right, the cam sprocket should be on its mark. And the rotor on the distributor should be pointing to #1 spark plug wire tower. If you have the valve cover off, the lobes of the camshaft for #1 cylinder should be away from the valves-both valves should be closed on #1. Hope I have answered your question. Post back with results, or if unclear, or how things turn out. Good luck, and yes, you can go by the marks on the crank pulley-it matches the crank sprocket mark.
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SOURCE: 1994 toyota 22re 4x4 pickup fuel injector wiring diagram
the color of the plastic plug does not matter... You will have two injector plugs with white/red and yellow wires - those two go to cyl#'s 1 and 3.
the other two plugs will have white and blur wires.. those two plugs go to injectors # 2 and 4.
SOURCE: i HAVE 1996 ISUZU . tIMING CHAIN BROKE. i AM
Yes be sure the number one piston is at TDC firing stroke or compresson stroke and line up the timing mark pointer is pointed at exactly zero. One more thing when aligning the camshaft sprocket or sprockets be sure that when you are rotating the sprocket for the cam it is rotating in the correct direction and also be sure you observe the intake valve for number one shutting as you bring the marks up to alignment points, the intake valve and the exhaust valve should be shut when the marks line up if not you could have the cam sprocket off 180 degrees, get it right the first time or you may damage a valve trying to start.
SOURCE: Broken timing belt 1999 Toyota Rav 4. Can not
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