How much valve tap is too much?

uniberp · March 20, 2009

I mean at 170k miles, it's starting to sound like a diesel when starting cold, and takes about 15 minutes to go away.

I hope valve adjustment is fairly straightforward, with little caps and cup things, and can be done without removing anything but valve covers.

Just to get some more life out of it, and avoid popping off a valve top. No desire at this point to lift the heads.

OB99W · March 20, 2009

You didn't say which engine, so it's hard to make comments that would definitely apply.

Are you sure what you're hearing is valve noise, and not piston slap?

Here are a few links that might be interesting:

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