The crankshaft pulley (harmonic balancer) is
mounted on the end of the crankshaft
. Its purpose is to turn the drive belts that operate the engine accessories (alternator, air conditioning compressor, etc.)
What happens if a crankshaft pulley breaks?
When a crankshaft pulley fails (or the timing belt due to a badly maintained crankshaft pulley),
the timing of the engine is completely thrown off
. Even a rotation or movement of a few millimetres can start to cause problems in a system so precise.
How do I know if my crankshaft pulley is bad?
- Engine vibration. One of the first symptoms of a potential problem with the harmonic balancer is engine vibration. …
- Misaligned timing marks. Another symptom of a potential problem with the harmonic balancer is misaligned timing marks. …
- Separated harmonic balancer.
What is the purpose of a crankshaft pulley?
accordingly to the The crankshaft pulley is located in one of the extremes of the crankshaft, and his main function is
to move the auxiliary elements of the engine
, as for example, the alternator, assist steering pump, water pump, air conditioned compressor… through a V-belt known as poly V.
Can you drive with a bad crankshaft pulley?
Indeed, if it’s the crank
pulley
and the
harmonic balancer
comes off with it and the engine continues to run that
can
damage the
crankshaft
. Other
pulleys could
get distorted if a fastener is missing and in such condition
could
damage the
drive
belt riding on the
pulley
. …
When should I replace crankshaft pulley?
- The engine is loud and you feel vibrations coming from your engine.
- The pulley belt may slip causing your vehicle to backfire or misfire.
- The vehicle’s ignition timing will be off.
- The vehicle will not start at all.
What happens when a pulley goes bad?
A broken or seized pulley can quickly lead to
a torn belt
, or in less serious cases, the belt falling off of the engine. An engine without a belt can quickly run into issues such as overheating and stalling, as it’s the drive belt that allows the engine accessories to function.
How much does it cost to fix a crankshaft pulley?
Crankshaft Damper Replacement Cost – RepairPal Estimate. Labor costs are
estimated between $125 and $157
while parts are priced between $238 and $240. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.
How long should a crankshaft pulley last?
They should last
70k ish
, trouble is when you buy a new one its not a new one, its one that has been sitting on a shelf in a FGP warehouse for ten years.
Can crankshaft pulley be repaired?
Changing the crankshaft damper pulley is a routine repair for all mechanics and can be done both kerbside as well as in the workshop, providing it is safe to do so. The mechanic will; Check the condition of the crankshaft damper pulley. If necessary, replace the crankshaft damper pulley.
What is the difference between a crank and a pulley?
Crankshafts are responsible for driving the car wheels. Crankshaft pulleys
transmit mechanical power and torque
, or the force of motion, through the pulley system to additional car elements, such as the power steering pump and alternator.
What causes crankshaft pulley failure?
Another way a pulley can fail is during the fitting process there
has been an interruption with the assembly press
or the friction bearing has been incorrectly pressed in. This can occur during the making and installation of the part with the vehicle.
Is crankshaft pulley same as harmonic balancer?
A harmonic balancer is a front end accessory drive component that is connected to the crankshaft of an engine. … Harmonic balancers do have many names, though, such as damper, crankshaft pulley and crankshaft balancer, among others.
How much does a crankshaft cost to replace?
The average cost for a crankshaft repair runs
between $50 and $105
, with the labor generally being between $130 and $165.
What happens if your crankshaft sensor is bad?
If the crankshaft position sensor or its wiring have any issues,
it can cause the crankshaft signal to be cut off while the engine is running
, which can cause the engine to stall. This is usually a symptom of a wiring problem, however a bad crankshaft position sensor can also produce this symptom.
How do you remove a crank pulley without a puller?
There is a way to do it.
You put a wrench on the pulley bolt and block the other end against the floor or the frame
. Then you use the starter motor to turn the engine (DO NOT START IT, JUST TURN IT) for at most one or two revolutions of the crank. Just enough to break the bolt loose.
