Can a bad pulley cause alternator problems?
Alternators are DRIVEN by the serpentine belt. All that happens when the belt disappears or pulleys seize is the alternator stops turning; there is NO possibility of damage to the alternator.
Can I put a smaller pulley on my alternator?
A smaller pulley on the alternator will spin it faster. This can be done, with the provision that you can only go so small on the pulley before the small diameter causes problems by bending the belt into too small of a radius.
How do I know if my alternator pulley is bad?
If you ever hear growling or whining noises coming from under the hood, you could have alternator problems, which should be checked out by a professional ASAP. This growling or whining sound happens when the belt that turns the alternator’s pulley becomes misaligned or rubs against the side of the pulley.
How much does it cost to replace an alternator pulley?
The total price to replace the idler pulley typically ranges between $80 and $200, with the parts ranging between $40 and $90, and the total labor cost averaged between $40 and $110.
How do I know if my alternator decoupler pulley is bad?
A bad alternator pulley initially will cause excessive tensioner movement. A short buzzing or chirping sound can be heard for 1 to 5 seconds after shutting down the engine. The sound can also be heard during engine start. It is because of the worn out bearing and it can cause further damage to the belt.
Can I put a larger pulley on my alternator?
Yes, you can increase your alternators overall output as well as increase power output at engine idle speeds. Check the size of the pulley on your alternator. If you are having problems with overall alternator output or charging at engine idle, maybe a smaller pulley is all you need.
What’s the best way to remove an alternator pulley?
If your alternator has an external fan: 1. To remove the alternator pulley, use an impact wrench to loosen the nut with one hand, while holding the alternator pulley with the other. It is recommended that protective gloves and eyewear be used. The pulley nut uses standard, right-hand threads.
How do you change the nut on a pulley?
The pulley nut uses standard, right-hand threads, so to remove, rotate in a counter- clockwise direction. 2. Install new pulley, lock washer, and nut by hand. 3. Tighten nut with impact wrench until lock washer is completely closed and nut is tight.
What kind of pulley do I need for Denso alternator?
Do not over tighten. NOTE: Typical pulleys are designed for a standard 17mm alternator shaft. Powermaster’s smaller Denso racing units have a 15mm shaft and require installation of the adapter bushing supplied with all racing style alternator pulleys.
How do you change the pulley on a Powermaster?
These alternators have a spacer installed between the nut and bearing to hold the rotor forward, preventing the internal parts from becoming misaligned and rubbing. When installing the pulley, this spacer should be removed and discarded. 2. Install the new pulley, lock washer, and nut by hand.