harmonic dampener install question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JGross · 11-05-2012, 03:22 PM

I've installed the harmonic dampener back on my 5.3 donor engine, when I removed it I marked the crank and the dampener with the intention of reinstalling it back in the same orientation. However in my hast to get it back on I didn’t check and now the dampener is about 150 degs advance from its original position. Is this a problem? I know that the dampener is not a balancer like on a Gen I small block but I’m not sure that be out this much is a problem.

Thanks

crazy longhorn · 11-05-2012, 08:59 PM

You will be just fine on that....there is no balance weight, & no timing mark, on the dampner

crazyl

Wasted Income · 11-06-2012, 09:40 AM

Yep, you can put it on in any orientation. If it mattered, GM would have put a keyway in the crank.

BR3W CITY · 11-06-2012, 01:09 PM

its not like the externally balanced big blocks where putting the balancer on wrong will shake it to death.

As long as its on tight with a NEW bolt and tightened right, there should be no issue.

11-05-2012, 03:22 PM	#1
JGross Registered User Join Date: Apr 2010 Location: Hattiesburg Ms Posts: 235	harmonic dampener install question I've installed the harmonic dampener back on my 5.3 donor engine, when I removed it I marked the crank and the dampener with the intention of reinstalling it back in the same orientation. However in my hast to get it back on I didn’t check and now the dampener is about 150 degs advance from its original position. Is this a problem? I know that the dampener is not a balancer like on a Gen I small block but I’m not sure that be out this much is a problem. Thanks

11-05-2012, 08:59 PM	#2
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Re: harmonic dampener install question You will be just fine on that....there is no balance weight, & no timing mark, on the dampner crazyl __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

11-06-2012, 09:40 AM	#3
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Re: harmonic dampener install question Yep, you can put it on in any orientation. If it mattered, GM would have put a keyway in the crank. __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2023 Ford Explorer ST - Twin Turbskis 2023 Ford F150 RCSB - Whipple Supercharged 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

11-06-2012, 01:09 PM	#4
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: harmonic dampener install question its not like the externally balanced big blocks where putting the balancer on wrong will shake it to death. As long as its on tight with a NEW bolt and tightened right, there should be no issue. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD



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