It can be heard in the upper end of the engine with a stethoscope.
The further away from the heads the quieter it gets till it disappears
in the accessories, exhaust pipes below the manifolds, etc... It is
heard with the same loudness in the heads, the rockers and the exhaust
manifolds. But to listen in a general sense it just sounds like the
middle of the engine is tapping and you can't say if it is from one
side or the other, just the middle of the engine.
WiLieR
On 5/4/07, Bernd D. Ratsch <bernd@dodgetrucks.org> wrote:
>
> So the tapping is coming from the valvecover area?
>
> - Bernd
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