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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: nativetexan on October 04, 2009, 10:45:52 pm

Title: harmonic balancer??
Post by: nativetexan on October 04, 2009, 10:45:52 pm

Hey just curious... how do I install the harmonic balancer on my 87 small block. It is a oem replacement I picked up from autozone. It is a rebuilt motor so... any advice?

Let me know if you need any more info.

Title: Re: harmonic balancer??
Post by: Donut on October 05, 2009, 06:40:11 am

Reverse of the removal.  I'm not sure if AZ rents tools, but they "should" have an installation tool for the balancer.  Presses the balancer onto the crank snout.

Title: Re: harmonic balancer??
Post by: team39763 on October 05, 2009, 08:44:41 am

I got these directions from SummitRacing.  http://static.summitracing.com/global/images/instructions/sum-161350.pdf
I know AutoZone and O'Reilly both rent out tools, but I'm not sure if they have the crank installation tool.  Maybe you could call and check. 

Title: Re: harmonic balancer??
Post by: Captkaos on October 05, 2009, 09:23:55 am

with a harmonic ballancer installer.

Title: Re: harmonic balancer??
Post by: SUX2BU99 on October 05, 2009, 12:13:02 pm

Is it typical to heat the new damper up like those Summit instructions recommend to make it go on easier?

Title: Re: harmonic balancer??
Post by: team39763 on October 05, 2009, 12:27:38 pm

I heated mine up in the oven at 200* for 30 minutes and just before I slapped the balancer on the crank I froze the crank-snout with a shot of nitrous.  I slapped it on as far as I could with a 2X4 and hammer.  Then I used the stock bolt to pull it the rest of the way.  Several other guys on the net suggested that the balancer be heated up to slide on easier.