Strange sound coming from engine area.

[Scarpulla, Christopher [IT]]

The fact that it happens under light throttle tells me that it's rod knock.
I've been there (twice) so I know. Here's an test;

Pop the hood and rev the motor gently, so that you're used to being able to
duplicate the sound.
Remove the spark plug wire from cylinder #1.
Rev the motor again, listening for the noise.
Replace the plug wire and move on to cylinder #2.
Etc....

If the noise abates, you've found the cylinder causing the rod knock.

Chris

>From: Peter Serwe [mailto:peter@easytree.net]

>I have this strange very light ticking showing
up at different rpms, it likes to rear it's head
when I apply a little throttle.