2000 Pontiac Grand Am 2.4 DOHC?

Johnny P

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It's me again. I finished taking the top end of the engine apart yesterday and found out that I had 6 of 16 valves out. I went ahead and ordered all valves since I already have the engine opened up. The head gasket looked good and the head was perfect, no scratches or cracks, thank god for small favors. So now, my question is, I assume that the valves went because the cams were 180 degrees out, right? My crank shaft turns without resistance. My pistons raise up flush or just a hair under flush with the block, is that what is supposed to be? They were dirty, looked like burnt oil and fuel, was told that is what is supposed to be like and that is what is was, does this sound right so far? Cleaned the tops of the pistons with a rag to get the gunk off, came of pretty easy. Didn't see any damage to them what so ever, not even a dent or scratch on them. So, the big question, the valves should be okay right and they all raise to the block flush two at a time of course, any damage maybe to the rods? Honestly, I think I would prefer you lie if you have to and say they are okay, but I don't want to put this engine back together just to find out there are more problems with the rods or piston. Kind of afraid to take the bottom half of the engine out. How about the rings on the pistons. There isn't really a way of knowing unless I take the pistons out and the means taking the bottom of the engine apart. Please advise on my questions and any advise would be appreciated.
Thank so much
Johnny
Not a lot of miles, I have owned the car for 6 years and it only has 122,000 miles. I bought it with only 84,000. I replaced water pump and when I put the timing chain back on, I guess I had it 180 degrees out. There wasn't compression in the number 1, 4, and 2 cylinders. Number 3 showed about 60+ psi, but that number of course is really low due to it being cold, not ran for a couple of days. All I did was crank it over for maybe total 30 seconds, 5 seconds each time. Then I realized it ain't gonna start. Then perform compression test couple of days later when I had more time to work on it. There wasn't any damage to the top of piston and the crank turns smoothly though.
 
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