Harmonic Balancer instalation - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Rode Guy · 10-30-2017, 11:24 PM

I am trying to install a Harmonic Balancer on a 402 in a 72 C-20. The engine is in the truck. How can I tell when it is in as far as it is going to go? Thanks.

**raggedjim** · 10-31-2017, 09:27 AM

I used a tool from Autozone to pull it on. You should know when it bottoms out. It's supposed to be torqued to 60 ft/lbs.

Good luck, Rg

Rode Guy · 10-31-2017, 10:36 AM

Thank you. It does not seem to go all the way in. Is there a way to measure or just the "torque"?

**raggedjim** · 10-31-2017, 11:13 AM

Well, I had my old one, so I compared the depth to the crank snout to the old one. I don't recall what the measurement was. I'm thinking it was around 1"

Good luck, Rg

**truckster** · 10-31-2017, 09:55 PM

Rode Guy, welcome to the site. I'm the guy who told you about it.

Did you get the bolt back in the crank? If you did and you torqued it down, it should be fully seated.

Crewguy498 · 11-27-2019, 11:20 PM

Old mechanic told me to hit the crank snout with some fine Emory cloth to help with the balancer install.

10-30-2017, 11:24 PM	#1
Rode Guy Registered User Join Date: Oct 2017 Location: Orem Utah Posts: 2	Harmonic Balancer instalation I am trying to install a Harmonic Balancer on a 402 in a 72 C-20. The engine is in the truck. How can I tell when it is in as far as it is going to go? Thanks.

10-31-2017, 09:27 AM	#2
raggedjim Senior Member Join Date: Jun 2002 Location: Murray, Kentucky Posts: 3,571	Re: Harmonic Balancer instalation I used a tool from Autozone to pull it on. You should know when it bottoms out. It's supposed to be torqued to 60 ft/lbs. Good luck, Rg __________________ Roger '68 Short step - https://67-72chevytrucks.com/vboard/...d.php?t=849675 '69 ('70?) 2wd Blazer '70 GMC Jimmy 2wd '73 Firebird - https://67-72chevytrucks.com/vboard/...d.php?t=853203

10-31-2017, 10:36 AM	#3
Rode Guy Registered User Join Date: Oct 2017 Location: Orem Utah Posts: 2	Re: Harmonic Balancer instalation Thank you. It does not seem to go all the way in. Is there a way to measure or just the "torque"?

10-31-2017, 11:13 AM	#4
raggedjim Senior Member Join Date: Jun 2002 Location: Murray, Kentucky Posts: 3,571	Re: Harmonic Balancer instalation Well, I had my old one, so I compared the depth to the crank snout to the old one. I don't recall what the measurement was. I'm thinking it was around 1" Good luck, Rg __________________ Roger '68 Short step - https://67-72chevytrucks.com/vboard/...d.php?t=849675 '69 ('70?) 2wd Blazer '70 GMC Jimmy 2wd '73 Firebird - https://67-72chevytrucks.com/vboard/...d.php?t=853203

10-31-2017, 09:55 PM	#5
truckster Senior Member Join Date: Jan 2001 Location: Orem, Utah Posts: 7,954	Re: Harmonic Balancer instalation Rode Guy, welcome to the site. I'm the guy who told you about it. Did you get the bolt back in the crank? If you did and you torqued it down, it should be fully seated. __________________ I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson

11-27-2019, 11:20 PM	#6
Crewguy498 Registered User Join Date: Mar 2019 Location: Louisville, MS Posts: 16	Re: Harmonic Balancer instalation Old mechanic told me to hit the crank snout with some fine Emory cloth to help with the balancer install.



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