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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: zieg85 on July 19, 2019, 01:10:06 PM

Title: Harmonic Balancer question
Post by: zieg85 on July 19, 2019, 01:10:06 PM
I have a slight vibration in my 85 C-30 with a 5.7L.  I am thinking I may need a new Harmonic Balancer.  Is there any brand names I should stay away from.  I am looking on eBay as a start. 
Title: Re: Harmonic Balancer question
Post by: FlatBlack77 on July 19, 2019, 02:33:53 PM
Have you checked the engine and transmission mounts? I would start there
Title: Re: Harmonic Balancer question
Post by: zieg85 on July 19, 2019, 03:03:31 PM
Have you checked the engine and transmission mounts? I would start there

The transmission has been removed and was a major source of the vibration.  I still feel a little still.  I am going to take all the v-belts off next to see if anything changes.  The engine runs very smooth and sounds really good.
Title: Re: Harmonic Balancer question
Post by: Stewart G Griffin on July 19, 2019, 04:30:27 PM
i think pioneer and dorman have had bad reviews.   (Note: i think Dorman is ok with other parts though)


ATI, Fluidamper among others = good.