SeanR Posted June 7, 2012 Share Posted June 7, 2012 My 88 Reatta with 48k has been fine but had this slight scrape sound when cold. Drove the car last night to a few errands and on when back in the garage starting hearing a metal scraping noise with engine RPM.VIDEO0016.3gp - YouTubeThe belt is fine. Nothing is wobbling or leaking. It sounds like it's coming from the harmonic balancer pulley. So is this a sign the cam magnet is about to fail?? Link to comment Share on other sites More sharing options...
Rawja Posted June 7, 2012 Share Posted June 7, 2012 You've answered your own question....You need to replace the harmonic balancer. Link to comment Share on other sites More sharing options...
NCReatta Posted June 7, 2012 Share Posted June 7, 2012 You've answered your own question....You need to replace the harmonic balancer.Ditto Link to comment Share on other sites More sharing options...
SeanR Posted June 7, 2012 Author Share Posted June 7, 2012 Really?!?! At only 48k?!! So unfair! It's not wobbling or leaking or anything like that and started making this noise practically overnight. So it's the cam magnet in there making that noise? Link to comment Share on other sites More sharing options...
Ronnie Posted June 7, 2012 Share Posted June 7, 2012 No! It's the harmonic balancer. Take a mirror and look at it in the center where to bolt is. Look for cracks or chunks of rubber missing between the outside pulley and the hub the bolt goes through. Harmonic Balancers are available in The Reatta Store. Lookin the Engine & Tranmission category. Link to comment Share on other sites More sharing options...
SeanR Posted June 7, 2012 Author Share Posted June 7, 2012 thanks. I think I will also take the belt off and start it to make sure the noise is indeed coming from this balancer. Is it hard to replace or involve the cam magnet at all? Link to comment Share on other sites More sharing options...
Ronnie Posted June 7, 2012 Share Posted June 7, 2012 Assuming you have a 1988-90 model... Hardest part is getting the bolt out. 1991 is different. The balancer has nothing to do with the cam magnet. If the magnet was missing you would be getting a ECM code 041. Magnet is not likely to make a noise. Link to comment Share on other sites More sharing options...
SeanR Posted June 7, 2012 Author Share Posted June 7, 2012 just curious, why are these harmonic balancers made out of rubber?!? Seems like a big failure point. Link to comment Share on other sites More sharing options...
Ronnie Posted June 7, 2012 Share Posted June 7, 2012 They are not really made of rubber. The balancer is made in two parts. The outer part with the pulley and the inner hub. The rubber is a dampening material that bonds the two metal parts together. The rubber deteriorates with age no matter how low the miles on the car. Link to comment Share on other sites More sharing options...
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