Hhttp://www.youtube.com/watch?v=S2KIeB2WQmAey guys I have an engine noise on my motor, I checked the valve train by pulling the rocker cover and I adjusted the valves for good measure while I had it off.I thought it might even be a rod because when I rev the motor and put a load on it it seems to go away,I was getting set to drain the oil and pull the pan down to physically check the rods,however I decieded to do one more thing,I listened to the motor with a stethoscope the sound appears to be coming from the timing gear area from what I can hear.Another thing I did I remember my dad had a 50 Pontiac with a rod knock and he pulled plug wires one at a time( while it was running),when he did it to the bad one pulling the wire the noise quieted I tried it didn't make any difference,so again I doubt a rod is bad.My question is when the timing gear on these motors are going bad (its an 86) will it make a knock? I put a timing light on the motor didn't seem to jump around but thats usually true witha timing chain,I never had a bigger motor with gears as opposed to a chain.Again any ideas would be helpful Thanks. Iam adding a video of the motor running with the noise.
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