Mercury LN7 Crankshaft Harmonic Balancer Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

customer ratings

(9)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

customer ratings

(9)

Crankshaft Harmonic Balancer Replacement Estimate for Mercury LN7

Mercury LN7 Crankshaft Harmonic Balancer Replacement costs $295 on average.

CarServiceEstimateShop/Dealer Price
1982 Mercury LN7L4-1.6LService typeCrankshaft Harmonic Balancer ReplacementEstimate$449.78Shop/Dealer Price$540.82 - $766.48
1983 Mercury LN7L4-1.6LService typeCrankshaft Harmonic Balancer ReplacementEstimate$415.78Shop/Dealer Price$506.85 - $732.53
Show example Mercury LN7 Crankshaft Harmonic Balancer Replacement prices

Crankshaft Harmonic Balancer Replacement Service

What is the Crankshaft Harmonic Balancer all about?

The harmonic balancer (also called “crank pulley damper”), connected to the crankshaft of an engine, reduces engine vibration and serves as a pulley for the drive belts. The balancer or “damper” is composed of two elements: a mass and an energy-dissipating element. The mass resists the acceleration of the vibration and the energy dissipating (rubber) element absorbs the vibrations. When the balancer fails, it is usually due to heat, salt, and or ozone deterioration of the rubber. General wear, tear, and stress on the rubber is also a factor.

Keep in mind:

Usually a problem with the harmonic balancer means that it needs to be replaced. However, sometimes the rubber insert that sits between the center and the outside of the pulley is all that is damaged. It is also possible for the bolt that holds the balancer in place to become loose, which can cause problems even if the pulley isn’t damaged.

How it's done:

  • Inspect the harmonic balancer.
  • Remove drive belts and balancer.
  • Inspect condition of crankshaft front seal.
  • Replace the harmonic balancer.
  • Reinstall drive belts.
  • Start car and check for proper operation.

Our recommendation:

Harmonic balancers aren’t a part of most standard inspections, so keep your eye out for warning signs. If you notice excess vibration or noise from the engine, then your balancer may be damaged, and you need to schedule an inspection.

What common symptoms indicate you may need to replace the Crankshaft Harmonic Balancer?

  • Vibration from engine.
  • Loud, abnormal engine noise, which increases with acceleration.

How important is this service?

The crankshaft harmonic balancer is connected to the crankshaft, and absorbs many of the vibrations that the engine creates. The engine creates a large amount of force that is delivered to the crankshaft, which transfers the power to the transmission. The harmonic balancer is responsible for absorbing some of the engine-created force so that the crankshaft doesn’t receive it all. When the harmonic balancer fails, the crankshaft receives all of the engine’s vibrations, and is susceptible to serious damage.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(9)

Rating Summary
9
0
0
0
0
9
0
0
0
0

Mark

41 years of experience
77 reviews
Mark
41 years of experience
Mercury Mountaineer V6-4.0L - Crankshaft Harmonic Balancer - Canton, Georgia
I will definitely use Mark on future work. Honest, fair price, and quality work.

Jose

10 years of experience
285 reviews
Jose
10 years of experience
Mercury Mountaineer V6-4.0L - Crankshaft Harmonic Balancer - Tampa, Florida
Showed up early. Very polite and professional. Did the job quickly and efficiently. I would hire him again in a heartbeat to do anything on my car. I highly recommend him to anyone for any service needed on a car.

Shaun

10 years of experience
542 reviews
Shaun
10 years of experience
Mercury Grand Marquis V8-4.6L - Crankshaft Harmonic Balancer - Mesa, Arizona
fst professional work

Peter

43 years of experience
1321 reviews
Peter
43 years of experience
Mercury Sable V6-3.0L - Crankshaft Harmonic Balancer - Buckeye, Arizona
Professional at all moment.Thanks Peter.

Excellent Rating

(9)

Rating Summary
9
0
0
0
0
9
0
0
0
0
Number of Mercury Crankshaft Harmonic Balancer Replacement services completed
99+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

Recent articles & questions

How the Engine Lubrication System Works
Car engines need oil to work properly. Motor oil lubricates engine parts and helps prevent overheating. Changing oil on time helps your engine last.
How Long Does a Track Bar Last?
The The track bar is part of your car's suspension system and is located underneath your vehicle. The bar is attached to a suspension link that provides a lateral location for the axle. The suspension allows the wheels to move...
How to Install Hood Pins on Your Car
Hood pins are used as a secondary restraint for the hood and are attached by a pin and plate drilled through the hood.

broken themostat, broken fan blower

Hey there. These issues may be related or separate problems. If replacing the thermostat provided heat, it was most likely stuck closed and not allowing coolant to flow to the heater core. The blower fan is a completely different circuit....

Car won't start

Hi and thank you for contacting YourMechanic. It seems to me that there may be a cable detached from the starter when it was changed. If all of the cables are on the starter then I would check the fuel...

Can I get an alignment with bad rear struts?

The rear struts that are weak and not supporting the vehicle as they should can cause the suspension to sag in the rear and also cause the alignment to not be within specification. The can cause tire wear from the...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com