I have been hearing a mild "wobble-chirp" (Best description I can give) when my engine is running, cold or opp. temp. I took a look under the hood to see if it was a belt that was loose but I noticed that the Crank Pulley had a slight wobble to it. I did some research into replacement and found this in the AEM FAQs...

"Why doesn’t AEM make a crank pulley?"

"Virtually all of the cars we make Tru-Power pulleys for come equipped with a vibration dampener mounted to the crank from the factory. Aftermarket crank pulleys require the removal of these dampeners, which are required for engine life. Their removal can cause damage to your engine over time. If the manufacturers could save on vehicle costs by eliminating this device they would have done so."

This leaves me stumped. Any suggestions?

Engine: B18C1

 

Anyone?

 

Help?

 

Majority of the stock crank pulleys wobble slightly over time. The only thing holding it together is a hard durometer rubber. The pulley could be scraping on the timing belt cover making noise. Other than that just check all belts again to see if little pebbles got stuck in the grooves of the belt.

 

somehow ur crank pulley came lose.hold ur cam gears with socket/take crank pulley off/make sure the pin in the cp is correct then replace..my motor had the same problem.

 

Thanks fellas. I'll do that this weekend and post up the results.