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I have a 1993 Buick Park Ave Custom, 3.8L supercharged. My general mechanic says I am in need of a "Harmonic Balancer"? and it runs like $300-$350 installed, ever heard. This sounds like a flex compasitor to me. (there's no "buick" category to list this question)

2006-10-03 08:05:53 · 9 answers · asked by MiKeNeSs 2 in Cars & Transportation Car Makes GMC

9 answers

LOL flex compasitor. the mechanic isnt pulling your leg, there is such a thing as a harmonic balancer.
chances are with the year of car you have yes you need it. The harmonic balancer, or vibration damper, is a device connected to the crankshaft to lessen the torsional vibration. When the cylinders fire, power gets transmitted through the crankshaft. The front of the crankshaft takes the brunt of this power, so it often moves before the rear of the crankshaft. This causes a twisting motion. Then, when the power is removed from the front, the halfway twisted shaft unwinds and snaps back in the opposite direction. Although this unwinding process is quite small, it causes "torsional vibration." To prevent this vibration, a harmonic balancer is attached to the front part of the crankshaft that's causing all the trouble. The balancer is made of two pieces connected by rubber plugs, spring loaded friction discs, or both. When the power from the cylinder hits the front of the crankshaft, it tries to twist the heavy part of the damper, but ends up twisting the rubber or discs connecting the two parts of the damper. The front of the crank can't speed up as much with the damper attached; the force is used to twist the rubber and speed up the damper wheel. This keeps the crankshaft operation calm

2006-10-03 08:17:07 · answer #1 · answered by Chris 2 · 0 0

The Harmonic Balancer is the small flywheel on the front of the crankshaft. It has the timing marks on it. If it's cracked or damaged, it'll cost around 3 or 4 hundred bucks to replace it.

2006-10-03 15:11:30 · answer #2 · answered by Slut 2 · 0 0

The harmonic balancer is also the lower crank pulley. On the supercharged models it takes a lot of additional stress. The price sounds about right.

2006-10-03 15:08:24 · answer #3 · answered by yes_its_me 7 · 3 0

Yes your car really does have a harmonic balancer in it and yes they do sometimes go bad. The price range seems a bit high though. Around the chicagoland area I think they would probably go for around 275.00 for your cars make and model. Good Luck

2006-10-03 15:09:27 · answer #4 · answered by Dan D 2 · 1 0

Yes

2006-10-03 17:06:13 · answer #5 · answered by fairlane66gta 3 · 0 0

I found the part itself online for 76.00, being as it is an engine pulley, I would assume about 4 hours to change it out, so the price sounds pretty close.

http://www.carpartswholesale.com/cpw/buick~park_avenue~harmonic_balancer.html

2006-10-03 15:11:14 · answer #6 · answered by Ben 3 · 0 1

yah that happens here in australia on them engines we have them in our vn holden commodores

2006-10-03 20:02:22 · answer #7 · answered by vnsupreme 1 · 0 0

listen to "yes" and "dan"

2006-10-03 15:11:55 · answer #8 · answered by tacoma 2 · 0 0

its a blork job

2006-10-03 15:07:54 · answer #9 · answered by cyphercube 3 · 0 2

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