Newbie with Timing Chain Questions - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Problems and Service Talk about any mechanical problems you are having

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post #1 of 6 (permalink) Old 05-29-2018, 08:44 AM Thread Starter
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Newbie with Timing Chain Questions

Good morning. I'm working on a 2.2 eco that lost the cam timing chain. I'm in the process of pulling the head now, since the pistons and valves got acquainted. I have several questions that I'm hoping some of you with much more experience with these engines than I do, can answer.

The balance shaft chain is still in tact. The car has 114K on it. Should I replace that chain as well as the cam chain?
Is the water pump a must to replace?
Are the head and cam bolts reusable ( I know they are TTY bolts)
Any recommendations on what chain package to use? I see a lot of the cheap kits online have terrible reviews.

For full disclosure, I will be selling this car once it's running, so cost is an issue. That being said, I do not sell something I wouldn't have my children drive. So if I need to spend a little extra to make sure it's right, I will do it.

Thanks in advance.
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post #2 of 6 (permalink) Old 05-29-2018, 10:06 AM
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Maybe a junkyard motor would be a better option. Just make sure the tensioner is the revised version.

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post #3 of 6 (permalink) Old 05-30-2018, 05:35 PM
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crate engine depot has some decent pricing with chain kits and what not but no head bolts and cams bolts should not be reused
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post #4 of 6 (permalink) Old 05-30-2018, 06:28 PM
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Not to reuse cam bolts?

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post #5 of 6 (permalink) Old 05-31-2018, 10:44 PM
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You're not supposed to reuse them because they're torque to yield & can stretch or something.
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post #6 of 6 (permalink) Old 06-01-2018, 11:34 PM
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Learn something new every day....Thanks JR

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