What causes pulley to wobble?
It is possible for the crankshaft pulley to wobble if the fan-belt pulleys that bolt to the harmonic balancer are dismounted, deformed, or otherwise damaged. Dismounting the pulleys might also cause wobbling. The typical tools may be used to remove these pulleys from the system.
Should the alternator pulley move freely?
It should rotate smooth and free with no resistance or grinding. Should be free what’s the issue? Take it to the parts store and have it tested if you’re questioning it.
What happens when the alternator pulley seized?
A short chirp noise during engine start-up or shut down is most likely caused by a worn overrunning alternator pulley. A worn overrunning alternator pulley often blocks and performs like a solid pulley. This will cause the belt to slip across the pulley surface during belt and alternator speed fluctuations.
What makes a harmonic balancer wobble?
Noticeable Harmonic Balancer Wobble When the rubber isolator begins to deteriorate, the balancer usually begins to separate, creating a noticeable wobble when the engine is running.
Should the crankshaft pulley move?
The camshaft and crankshaft pulleys are directly attached to the engine (camshaft and crankshaft) and will only rotate if the engine is running or manually rotating the engine by placing a socket and breaker bar to the crankshaft pulley bolt.
Can a alternator pulley go bad?
Pulleys do go bad because the grease in the pulley bearing dries out, the ball bearings and bearing races get pitted and then the pulley becomes noisy. Sometimes, the pulley will actually seize. However, it will be EASILY evident if a pulley bearing is bad. So, all you need to do is have them PROVE the failure to you.
Can I spray WD40 on my alternator?
You wouldn’t want to clean the alternator with WD40, as it would weaken the winding insulation. Hence, it can further cause some damages to the motor. Again, spraying WD40 directly to the alternator may ruin it, as the liquid may get to spots where it shouldn’t get to and cause harm.
What are the signs of a harmonic balancer?
10 signs of stock elastomer harmonic balancer wear.
- Cracked, bulging or missing rubber.
- Harmonic balancer wobbles.
- Separatation between the hub and outer ring.
- Timing marks slipped. Timing error code or mis-fire.
- Excessive wear on main bearings.
- Oil pump failure.
- Broken crankshaft.
- Loosening or broken bolts.
How do I know if I need a new harmonic balancer?
Signs that your crankshaft harmonic balancer needs to be replaced include:
- 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.
Are all pulleys supposed to move freely?
The only pulleys you should be able to turn by hand when the serpentine belt is not in place are: the water pump, alternator, and power steering pump pulleys. The air conditioning compressor has a clutch on it that should spin freely as well but it will not be rotating the internals of the compressor.
What happens if your harmonic balancer is wobbling?
When the harmonic balancer is wobbling, it would be best not to run the engine. The harmonic balancers function is to counteract the vibrations in the engine so damage doesn’t occur. When it fails, it can cause premature wear on the bearings, or lead to major engine damage.
What are the symptoms of a bad pulley?
With that being said, here are a few of the most common symptoms you can use to determine the condition of your timing belt pulleys.
- Shaky, or Otherwise Incumbered Belt Motion.
- Visible Wear On Your Pulleys.
- Belt “Squealing” or “Whining” Noises.
- Knocking or Slapping Noises.
- Damaged Bearings or Pulleys.
Can I lubricate my alternator?
It is recommended to have a dedicated grease gun for alternator bearing re-lubrication only. Never mix lubricant types. As per the Installation, Service & Maintenance manuals, it is vital that the grease, grease gun, grease nozzle and relubrication nipple are free from abrasive materials and other contaminants.