If The Timing Chain Jumped or Is Worn, Then...?

Question

How can you be sure that everything will be aligned right and be ready to go?

I suspect mine to be bad/worn/jumped, and I have a new one anyway. Double roller. So, I'm gunna replace it just incase even if it's not. Good insurance anyway.

But anyway, if it did jump, then how can you be sure that everything will be aligned? Will I have to align it at TDC and remove the heads and then set the cam/crank or whatever aligned and then reinstall the heads and adjust the valves or do what? Or... could you just remove the old one, align the marks and replace the chain and torque and all that according to the manual?

I have more info on my other question of what my car is doing. You can read it but I just wanna know about aligned everything to set it correctly. Thanks

1972 Chevelle 350. here is my other question: feel free to read that and get the info. Thanks

http://answers.yahoo.com/question/index;_ylt=AqlnjBr0baR_hlIbHR1xrGXsy6IX;_ylv=3?qid=20080821205748AAw7XEc

Answer 1

Your new timing chain should have come with both the cam sprocket and the crank sprocket. Each has a timing mark, which you position on installation. See above, most important part buy the book and read it.

Answer 2

Follow the maintenance manual word for word and allign the marks and put the new chain on, It is not difficult job on a chevy 350. There's no need to take the heads off or anything like that, or do anything to the valves. The allignment marks of  the Crank gear and  the cam gear, and the chain is all that is involved.