94zrag

One of the valve stem tips in my le2's has a crack in it, so I ordered a replacement. Does anything special need to be done to the new valve, or do I just lap it and put it in?

Sorry if its a stupid question but I've never messed with a set of heads before.

Also, should I put a new seal on?

I'm probably going to end up taking everything to a professional, but I would rather do things myself if I can.

Z28LT1_Just_Nasty

Replacing valves shouldn't be too big of a deal it's pretty straight forward. A tip though, do not pull the valve out if it feels like its totally stuck. Use a file to chamfer the end a little bit so it pulls through easy. You don't want to scratch up the valve guide and have to replace that too. If I were you I'd lap the valve in and take a look at the contact line the lapping compound makes. If it looks uniform and is a decent width you should be good.

Personally, if I'm going through all that effort to replace the valve I would replace the valve seals while I'm at it. It's really easy to do and its one of those "I wish I had done it while it was apart" deals if it wears out.

MachinistOne

Why does the valve tip have a crack in it? That is very abnormal and indicates something else is wrong.

rskrause

You need to replace the valve seal. Ditto the above post.

Rich

94zrag

Thanks for the responses. I'm pretty sure it cracked because I had the wrong length on my pushrods.