Harmonic balancer swap tonight - The 1947 - Present Chevrolet & GMC Truck Message Board Network

skokie · 02-13-2005, 11:38 PM

Im doing the balancer swap tonight. I want to make sure that I am not missign anything. I have a puller and installer.
Removal:
Mark where the balancer is.
Using puller to remove the balancer and key

Install:
Put a little grease on the seal in the timing chain cover /crank seal
Use the installed to press the balancer on.
Install the key into the crank (how far do I go in with that key? Will it just stop?)
With flexplate blocked torque the balancer bolt to 65 lbs.

Ok did I miss anything? There will be pics on this one

Thanks

neonlarry · 02-13-2005, 11:56 PM

Iv'e always installed mine with the key already in the crank it helps keep the balancer lined up in the proper orientation.

rustyold72 · 02-14-2005, 12:12 AM

Quote:

Originally Posted by neonlarry

Iv'e always installed mine with the key already in the crank it helps keep the balancer lined up in the proper orientation.

skokie · 02-14-2005, 12:24 AM

Ok. Should I replace the key since I am in there? Or leave the original one in place?

rustyold72 · 02-14-2005, 12:28 AM

I always replaced them,(my personal preferance) but if your key is good, then there's no reason not to reuse it

RON WOODGEARD · 02-14-2005, 12:36 AM

Quote:

Originally Posted by skokie

Ok. Should I replace the key since I am in there? Or leave the original one in place?

All the key does is keep the balancer and crank aligned. It should be stuck to the crank. Leave it there and put the balancer back on. Usually the crank groove (Keyway) is pretty tight, and you have to tap the key into the "Keyway" with a small hammer. or a tap and hammer.

I use a 6" long piece of 2X4 laying across the front of the balancer and tap the 2X4 with a hammer to seat it in place before installing and tightening the bolt. You may HAVE to do this, The bolt may not be long enough for the threads to start grabbing without the Balancer seating in some.

DO NOT HIT THE BALANCER WITH THE HAMMER..and don't hit it on the outside edges..

skokie · 02-14-2005, 12:49 AM

Ok crank pulleys are off. Fan is about to be off. I will post pics after I get everything apart.

skokie · 02-14-2005, 01:06 AM

Ok the fan is off. Its go time

skokie · 02-14-2005, 01:33 AM

Ok the old one is off. The key looks like its ok so I am going to leave it alone. Here is a pic of the old balancer. The rubber on the back ofthe old one is very dry and is peeling off in some places. The rubber on the timign chain seal looks good on the inside. Time for the new balancer to go on.

skokie · 02-14-2005, 01:56 AM

Its halfway on. Im taking a break here for a sec. Man this is like workout

67ChevyC10Stepside · 02-14-2005, 02:03 AM

why are you replacing it?

Russell · 02-14-2005, 02:42 AM

What are you using to re-install it?

I gotta put a balancer on, but I cannot find a tool for it anywhere...

I've heard about people making their own balancers, but I've never seen any pictures, and descriptions don't always work so well, lol

67ChevyC10Stepside · 02-14-2005, 02:51 AM

making your own balancer? dont think that would work so well...lol....for the tool look in summit.

4x4Poet · 02-14-2005, 02:58 AM

A potential source for an harmonic damper installer/puller.

Skokie, maybe you can take a pic of yours in action.

skokie · 02-14-2005, 03:41 AM

Quote:

Originally Posted by 4x4Poet

A potential source for an harmonic damper installer/puller.

Skokie, maybe you can take a pic of yours in action.

That one is real close to the one I have. Sorry I am already done. Heres the results. I cant get it flush with the timing tab. Its close though like maybe 1/4 of an inch. I can see a gap on the crank snout and the balancer onthe back. What I realized is that my old balancer wasnt even that far in. So the vibration I was feeling has gotten somewhat better. Any ideas on how I can get this balancer in all the way?

I will post the pics tomorrow.

neonlarry · 02-14-2005, 12:03 PM

You can hone out the inside a little with a brake cylinder hone to get it to fit.

skokie · 02-14-2005, 01:08 PM

Well all in all it wasnt to bad. I will post the pics tonight when I get home. I took another look at the original balancer and it was pretty shredded on the back side. Also it kinda looked warped and after thinking on it a bit I may know why. Since I have the new blanacer on and the timing tab is maybe 1/4 inch from being flush from the balancer. On the original the timing tab was maybe halfway across the timing tab. So I dont think it was pressed on fully to begin with. But hey I could be wrong.
Guys thanks for all the help I greatly appreciate it. I am going to finish the job tonight and hope for the best. If I cant get it on the rest of the way then the machine shop guy I spoke to this morning said that he would take care of it and cheap to. Maybe I should have asked him to install it in the first place

HAHHA

02-13-2005, 11:38 PM	#1
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,342	Harmonic balancer swap tonight Im doing the balancer swap tonight. I want to make sure that I am not missign anything. I have a puller and installer. Removal: Mark where the balancer is. Using puller to remove the balancer and key Install: Put a little grease on the seal in the timing chain cover /crank seal Use the installed to press the balancer on. Install the key into the crank (how far do I go in with that key? Will it just stop?) With flexplate blocked torque the balancer bolt to 65 lbs. Ok did I miss anything? There will be pics on this one Thanks __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234

02-13-2005, 11:56 PM	#2
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,746	Iv'e always installed mine with the key already in the crank it helps keep the balancer lined up in the proper orientation. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

02-14-2005, 12:24 AM	#4
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,342	Ok. Should I replace the key since I am in there? Or leave the original one in place? __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234

02-14-2005, 12:28 AM	#5
rustyold72 Registered User Join Date: Oct 2003 Location: Ark City KS Posts: 505	I always replaced them,(my personal preferance) but if your key is good, then there's no reason not to reuse it __________________ 71 Chevy C10 "The Rust Bucket" 72 Chevy C10 apart in the garage 02 WS6 T/A Fast Black and bad@$$ 93 Nissan Pathfinder "Emily" Totaled RIP girl 05 Jeep Grand Cherokee-HEMI powered 87 Iroc Z28 305 TPI auto (crying out for an LS1 swap)

02-14-2005, 12:49 AM	#7
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,342	Ok crank pulleys are off. Fan is about to be off. I will post pics after I get everything apart. __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234

02-14-2005, 01:06 AM	#8
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,342	Ok the fan is off. Its go time __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234

02-14-2005, 01:33 AM	#9
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,342	Ok the old one is off. The key looks like its ok so I am going to leave it alone. Here is a pic of the old balancer. The rubber on the back ofthe old one is very dry and is peeling off in some places. The rubber on the timign chain seal looks good on the inside. Time for the new balancer to go on. Attached Images __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234

02-14-2005, 01:56 AM	#10
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,342	Its halfway on. Im taking a break here for a sec. Man this is like workout __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234

02-14-2005, 02:03 AM	#11
67ChevyC10Stepside Registered User Join Date: Mar 2004 Location: Butler PA Posts: 3,034	why are you replacing it? __________________ 67 c-10, 400 SB, TH350, 4.10 gears, Blazer tank,camaro tach, sidemarker fuel fill (soon) WTB: stepside parts, 67 front end parts, 67 small window cab. posi for 3.73 or 4.10 for 12 bolt and 10 bolt.

02-14-2005, 02:42 AM	#12
Russell Professional Grade Join Date: May 2003 Location: Fort McMurray, Alberta Posts: 7,915	What are you using to re-install it? I gotta put a balancer on, but I cannot find a tool for it anywhere... I've heard about people making their own balancers, but I've never seen any pictures, and descriptions don't always work so well, lol __________________ 1995 Chevrolet 2 Door Tahoe (6.6L LBZ Duramax / ZF6 / NP241 with 1 ton solid axle swap)

02-14-2005, 02:51 AM	#13
67ChevyC10Stepside Registered User Join Date: Mar 2004 Location: Butler PA Posts: 3,034	making your own balancer? dont think that would work so well...lol....for the tool look in summit. __________________ 67 c-10, 400 SB, TH350, 4.10 gears, Blazer tank,camaro tach, sidemarker fuel fill (soon) WTB: stepside parts, 67 front end parts, 67 small window cab. posi for 3.73 or 4.10 for 12 bolt and 10 bolt.

02-14-2005, 02:58 AM	#14
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	A potential source for an harmonic damper installer/puller. Skokie, maybe you can take a pic of yours in action. __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.

02-14-2005, 12:03 PM	#16
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,746	You can hone out the inside a little with a brake cylinder hone to get it to fit. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

02-14-2005, 01:08 PM	#17
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,342	Well all in all it wasnt to bad. I will post the pics tonight when I get home. I took another look at the original balancer and it was pretty shredded on the back side. Also it kinda looked warped and after thinking on it a bit I may know why. Since I have the new blanacer on and the timing tab is maybe 1/4 inch from being flush from the balancer. On the original the timing tab was maybe halfway across the timing tab. So I dont think it was pressed on fully to begin with. But hey I could be wrong. Guys thanks for all the help I greatly appreciate it. I am going to finish the job tonight and hope for the best. If I cant get it on the rest of the way then the machine shop guy I spoke to this morning said that he would take care of it and cheap to. Maybe I should have asked him to install it in the first place HAHHA __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234



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