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Help - cam shaft & carrier removal


PanamaZ34

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Apologies if this has already been covered, but the best I could find was a reference to it having been done (but without any explanation).

 

Can anyone help with an idiot's (step-by-step) guide to removing the cam shafts and carriers from a 3.4 V6 without any of Chevy's special tools or even the lengths of fuel pipe that Haynes says I need?

 

I found the quote about doing it with standard sockets and a 6 pack of beer (presumably the plastic tie, rather than the beer), but would appreciate some more detailed advice and guidance. Also, when it comes time to put everything back together, how do I get the timing right when the cam shaft sprockets are so rusted that the marks are completely gone?

 

Thanks, Jim

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there never were any timing marks. Check out http://www.60degreev6.com for a decent write up on how to re-time the engine.

 

to take the engine apart you should need no more then a metric socket set and some torx sockets. I've never actually taken a cam carrier off but I'm told that the moment you do all the lifters will want to fall out so beware of that. Use some assembly lube to hold them in when you put it back together as it should hold them in there long enough to get the carrier back on.

 

You won't have to remove the individual cam shafts, as they are more or less sealed inside the carriers.

 

I'm sorry that I am not the most knowledgeable on the subject as to date I've yet had a need to tear a 3.4 down past the intakes.

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Thanks, any ideas for keeping the lifters under control - I'm guessing that's what the 6-pack plastic tie is for (or the lengths of fuel pipe recommended by Haynes) - but I have no idea how to hold them in place. What's the worst that can happen if they aren't secured during removal?

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They will fall all over the floor.

 

Yep. If this happens, they are likely to crack (don't ask how I know :sad: ).

 

What I did was to gently lift up the carrier enough for a helper to get in a wiggle the lifters out one at a time. They were then placed in order so that I could replace them in the same location they were removed from.

 

Putting them back in really isn't all that hard actually. Like Chris said, use some assembly lube to hold them (or lithium grease), and just make sure the cams don't turn when you seat the carriers or they'll push the lifters back out :willynilly:

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