Reinstalling Valve Components

[Patrick O’Connor]

When rebuilding a cylinder head, how important is it to reinstall the valves, springs, guides, etc in their original locations? I have read from various sources that ANY engine components need to go back where they came from. My second question is why is that important? Is it simply a matter of parts wearing together or is there more to it?

My cylinder heads are currently at a machine shop for a valve job. After a recent visit I suspect that all the parts were thrown in a box. I don’t know if that is the case, but if it is, I probably won’t be going back.

As this is a more general question, I don’t think the type of car is too important, but just for the record it’s a ’91 Camaro with the 3.1L LH0 V6, 159,000 original miles, 4L60E Automatic.

Topic

[college man]

the valves have worn a certain way over time.
generally what wore there goes back there.

[Patrick O’Connor]

I got my heads back this afternoon. I’m sure the pieces are all jumbled up. Since the two heads are identical, the guy told me I can put either one on either side. He then handed me back the rocker arms and pivot balls in a box. Obviously keeping things in their original location never entered his mind. Is this going to cause me a problem in the long run?

[college man]

You have no choice.unless you replace the parts.
Put it back together and see what happens. You may
not have any problems. 😉

[Author]

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