Harmonic Balancer?

meshach · 05-13-2001, 07:48 PM

I've got a strong vibration around 3-4000 on the shifter. It doesn't matter if the car is moving or not.I'm going to get the driveshaft balanced anyway but what about this harmonic balancer? Where is it and how much is one to replace. Is there any way to narrow down the vibration? It doesn't make any difference if clutch is in or out. Help! Thanks. 91,5.0L

joe4speed · 05-14-2001, 12:54 AM

Well if the clutch is in and it even does it at a standstill with the engine revving, it's engine and not drivetrain.
The harmonic balancer is the very bottom pulley connected to the crankshaft, it is the pulley that has the timing marks on it. These do sometimes go bad. I have replaced mine with a Fluidamper when I had a bad vibration once, but it turned out to be the flywheel instead. The balancer is actually pretty expensive. I believe (it was a long time ago...) mine was like 375.00 from Summit.
Good luck, and I hope you find the vibration. I am dealing with a bad vibration in my car now that I believe might be the driveshaft, but am not sure, and it's driving me nuts, so I know how you feel!!!

------------------
Joe!
1988 GT, 167,000 miles!!! 13.71@105mph Check out my listing! Click here! Or my website:
www.joe4speed.com
1999 Ninja ZX-6R 10.32@135mph!
1993 Olds Eighty Eight LSS

TEXSN95 · 05-14-2001, 09:33 PM

A new balancer from Ford is about $90. Not near as good as a Fluidampr, but suitable for those not willing to shell out $350 on a new one.

------------------
Clint L.
White 95 Cobra #3637
58cc GT40X heads with mild porting, Crane 2031 cam, FRPP 65 TB, 1.7s, Cobra intake, homeade cold air, 155lph, pullies, Tokico Illuminas, C springs, GW LCAs, Kenny Brown super subs, Steeda CC plates, aluminum driveshaft, Steeda quadrant, B&M ripper, Kirban FPR, MSD6A, Taylor wires, Mac shorties, off road hpipe, 2 1/2 ultra flows w/ dumps, R hood, Euro clear corners, stock 3.08s
13.61 @ 104.7 w/ 2.22

JRowlette · 05-15-2001, 08:28 PM

I am having a somewhat similar problem, except I get a bad vibration around 70 mph+. My problem is drivetrain. If you get the vibration at the same rpm no matter what gear, your problem is probably either teh balancer or the flywheel, so I personally would not waste my money on the driveshaft. My balancer has elastomer hanging out of it, so I'll have to replace mine also. I priced one for $79.99 @ Advance Auto Parts, the hell with $350!!!! You might want to get a balancer puller also for less than $20 to keep from messing your crankshaft. Good luck.

Dark Knight · 05-15-2001, 09:59 PM

FWIW, I had a bad vibration in my car... 3k RPM or so... ended up being the fan clutch... seized up... drove me crazy trying to find it till I tried to turn the fan by hand... ;-)

------------------
84 convt,'95 302,AFR's, performer
3.55's, underdrives stock shorties
stock cam, 1.7's
14.06@100.21, 255RWHP on a hot day
265 on the mph/weight chart

TEXSN95 · 05-15-2001, 10:11 PM

FYI you can rent a balancer puller from auto zone etc for free. Just put money down and they'll give it back when you return it.

------------------
Clint L.
White 95 Cobra #3637
58cc GT40X heads with mild porting, Crane 2031 cam, FRPP 65 TB, 1.7s, Cobra intake, homeade cold air, 155lph, pullies, Tokico Illuminas, C springs, GW LCAs, Kenny Brown super subs, Steeda CC plates, aluminum driveshaft, Steeda quadrant, B&M ripper, Kirban FPR, MSD6A, Taylor wires, Mac shorties, off road hpipe, 2 1/2 ultra flows w/ dumps, R hood, Euro clear corners, stock 3.08s
13.61 @ 104.7 w/ 2.22

05-13-2001, 07:48 PM	#1
meshach Registered Member Join Date: Apr 1999 Location: Dartmouth, NovaScotia, Canada Posts: 12	Harmonic Balancer? I've got a strong vibration around 3-4000 on the shifter. It doesn't matter if the car is moving or not.I'm going to get the driveshaft balanced anyway but what about this harmonic balancer? Where is it and how much is one to replace. Is there any way to narrow down the vibration? It doesn't make any difference if clutch is in or out. Help! Thanks. 91,5.0L

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05-14-2001, 12:54 AM	#2
joe4speed He said Member...heh, heh Join Date: Sep 1999 Location: Jupiter, Florida U.S.A. Posts: 3,718	Well if the clutch is in and it even does it at a standstill with the engine revving, it's engine and not drivetrain. The harmonic balancer is the very bottom pulley connected to the crankshaft, it is the pulley that has the timing marks on it. These do sometimes go bad. I have replaced mine with a Fluidamper when I had a bad vibration once, but it turned out to be the flywheel instead. The balancer is actually pretty expensive. I believe (it was a long time ago...) mine was like 375.00 from Summit. Good luck, and I hope you find the vibration. I am dealing with a bad vibration in my car now that I believe might be the driveshaft, but am not sure, and it's driving me nuts, so I know how you feel!!! ------------------ Joe! 1988 GT, 167,000 miles!!! 13.71@105mph Check out my listing! Click here! Or my website: www.joe4speed.com 1999 Ninja ZX-6R 10.32@135mph! 1993 Olds Eighty Eight LSS

05-14-2001, 09:33 PM	#3
TEXSN95 Registered Member Join Date: Mar 2001 Location: college station, tx Posts: 143	A new balancer from Ford is about $90. Not near as good as a Fluidampr, but suitable for those not willing to shell out $350 on a new one. ------------------ Clint L. White 95 Cobra #3637 58cc GT40X heads with mild porting, Crane 2031 cam, FRPP 65 TB, 1.7s, Cobra intake, homeade cold air, 155lph, pullies, Tokico Illuminas, C springs, GW LCAs, Kenny Brown super subs, Steeda CC plates, aluminum driveshaft, Steeda quadrant, B&M ripper, Kirban FPR, MSD6A, Taylor wires, Mac shorties, off road hpipe, 2 1/2 ultra flows w/ dumps, R hood, Euro clear corners, stock 3.08s 13.61 @ 104.7 w/ 2.22

05-15-2001, 08:28 PM	#4
JRowlette Registered Member Join Date: Apr 2001 Location: Bowling Green, KY Posts: 95	I am having a somewhat similar problem, except I get a bad vibration around 70 mph+. My problem is drivetrain. If you get the vibration at the same rpm no matter what gear, your problem is probably either teh balancer or the flywheel, so I personally would not waste my money on the driveshaft. My balancer has elastomer hanging out of it, so I'll have to replace mine also. I priced one for $79.99 @ Advance Auto Parts, the hell with $350!!!! You might want to get a balancer puller also for less than $20 to keep from messing your crankshaft. Good luck.

05-15-2001, 09:59 PM	#5
Dark Knight Registered Member Join Date: Oct 1998 Location: Az Posts: 854	FWIW, I had a bad vibration in my car... 3k RPM or so... ended up being the fan clutch... seized up... drove me crazy trying to find it till I tried to turn the fan by hand... ;-) ------------------ 84 convt,'95 302,AFR's, performer 3.55's, underdrives stock shorties stock cam, 1.7's 14.06@100.21, 255RWHP on a hot day 265 on the mph/weight chart

05-15-2001, 10:11 PM	#6
TEXSN95 Registered Member Join Date: Mar 2001 Location: college station, tx Posts: 143	FYI you can rent a balancer puller from auto zone etc for free. Just put money down and they'll give it back when you return it. ------------------ Clint L. White 95 Cobra #3637 58cc GT40X heads with mild porting, Crane 2031 cam, FRPP 65 TB, 1.7s, Cobra intake, homeade cold air, 155lph, pullies, Tokico Illuminas, C springs, GW LCAs, Kenny Brown super subs, Steeda CC plates, aluminum driveshaft, Steeda quadrant, B&M ripper, Kirban FPR, MSD6A, Taylor wires, Mac shorties, off road hpipe, 2 1/2 ultra flows w/ dumps, R hood, Euro clear corners, stock 3.08s 13.61 @ 104.7 w/ 2.22