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It's cool. ZDDP is just one of the things that I miss about old cars. New ones never got any of that, leaded gas, and more importantly, free breathing exhausts. I miss the days before catalysts were required.

Grab the longest screw driver youve got, place the tip against spots on the motor, and your ear on the handle. Poke around until you find the source of the noise.

USE YOUR BEST JUDGMENt AND WATCH WTF YOURE DOING Seriously, not taking responsibility if you go and put that thing into your timing gear and tear your face off

That said, if you havent done this or even heard of it- Youll probably be surprised with what you can actually hear and to the level of clarity you can hear it. With the right screw driver I can hear the wind noise of exhaust gas as it pulses through a manifold. Youll have no trouble locating the source of the noise, just find where its the loudest. Specificly try spots along the head above the valves, try the side of the block if you can get to it, and try the manifold (cant watch your video- and im not assuming its an exhaust leak based on whats been said- but hey never know).

Best of luck. Keep us informed on what happens.

^ If you want something dedicated, they make actual automotive-geared stethoscopes with a long probe on the end. While not necessary, it'll definitely increase clarity even more.

You may very well be right as that was my initial thought too. A tube works as well.

http://www.youtube.com/watch?v=yu_PJ2B2Tjw

I'll try this, but I'll need to replace the ignition switch before I can do anything .