strange sound, anybody know this tac tac tac Options

[michelko]

Hi guys,
today i fired up the spare engine. Makes a strange sound like tac tac tac.
Anybody knows what it could be? Think it comes from the right head. Valves are fresh adjusted.
Videofile

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[newdeal2]

QUOTE (Root_Werks @ Jan 8 2005, 09:03 AM)

I dunno man, it sure sounds like valve lash to me. It gets quieter as the engine warms up. Plus, when you give it a little throttle, I don't hear anything. So I don't think you have a bad wrist pin or rod knock etc. Those stick out like a soar thumb when you bump the throttle. .015, dang, I am at work right now and can't remember the conversion. Is that .006"? Most people I know do .006 across the board, but if you live in a cooler climate, I would go .004 intake and .006 exhaust. Pop off a valve cover and check the #1 again. Maybe it is the rockers? It is valve train noise for sure though. I have heard that a bazilion times. Other than that, motor sounds great! (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)

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Sounds a little like my engine as it's warming up. I recently adjusted my exhaust valves to .008 and that's what they sound like. It does quite down quite a bit when warm/accelerating.

I assume this is a fresh rebuild?