Knock knock.... ping....

[Tobert]

If you're checking for burned valves, the obvious check is a compression test. Judging by the last post I guess you're just asking about valve guides. A theposcope will help you pinpoint the rattling. I would try adjusting the rockers first if they're adjustable (I haven't accessed mine yet).

I know on most of the Chevorlets I've owned, rocker adjustment is a delicate balance between science and art. Overtighten and your cam lobes disappear. Undertighten and get clackety-clack noise.

[Chopper]

Part Dark Science- part Voodoo

[WormGod]

I actually use midgrade fuel. Lower grade unleaded makes it tick louder from what I have noticed.

Anyways, a funny thing happened today. Pulled into a parking lot to meet some buddies. One of them who is a tech at a Mercedes dealer says to me "Damn man, your valves dont sound so good". Gee, go figure.

Gonna see what all can and should be messed with when I get the S/C put in. May as well get it all done in one shot.

[thedutchguy]

Sounds like bad fuel to me!

[WormGod]

Well, this weekend I took my VX to the speedshop. Had them check into it. After checking it out, they talked me into going with synthetic oil. I agreed and paid the excess cost to prime it and change it up. They didnt think it was bad enough to tear down and check the guts so this was worth a shot. Wouldnt ya know it.... the change-over took care of about 50% of the racket! I was quite impressed really.

I am gonna go woth this for a while and see how it goes. It may be a few weeks before it goes in for the blower install, so I have till then to decide if this is working or not.

[thedutchguy]

I think it would be a good thing to test the compression of your cilinders.
If you have blow-by of bad oil it could be the cause.
Condensation of fuel in your sump could also cause problems!

[WormGod]

Aye aye, capt. Just writing down all these ideas and will pass them on and talk with my tech about them. /salute