[FONT=Times New Roman]OK, so I get this 2000 Intrepid with a dead 2.7, pull the heads and all the intake valves are bent. I put the heads from another 2.7 with a blown rod on, buy a new timing chain, but when I try to line up the colored links with the crank/cam gears, I find out that there are two colored links right next to each other on the drivers side cam gear. So, I pick one of the colored links to line up with the marks on the cam gear, and now it won't start. It fires now and then but won't keep running. Is there another way to line up the timing chain so the valves open at the right time? Is there a way to check to see if the timing chain is lined up like it should be? Also, both engines were filled with what appeared to be burnt oil, not sludge, and the timing chain tensioner was stuck which I think caused the timing chain to skip and bend the valves. Both engines had the same burnt oil deposits everywhere and it seems to me that somewhere the aluminum block/heads are overheating the oil until it becomes hard and crumbly and blocks the oil passages. A lot of them are blowing up, they can't all be from poor maintenance. THANKS![/FONT]
1st, tone down the font. what year motor did the replacement heads come from? There are different cam gears used for different years. There are notches in them for the cam position sensor and if they are swapped from different years, then they won't work properly. Burnt oil will contribute to a sludge problem. These are interference engines (at least the intake valves are) which means when the timing chain lets loose when the engine is running you end up with pistons and intake valves smacking each other, as you have already seen. From what I have read, this doesn't happen to the exhaust valves. Very interesting.
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Sounds like you didn't line up marks right. the left side cam mark should be between the two colored links the other marks go on the single colored links. As said above download the FSM it has a very good diagram and instructions. It also has procedure to check timing marks are corectly lined up.
I wouldn't keep cranking it over, with the chain even 1 link off you could do some damage.