Can you grease an alternator bearing?
The bearing can be greased unless it is shot. If it is you may be able to get a replacement. If it is bad remove the bearing and take it into an auto parts store and see if they have a match.
How do you test a pulley bearing?
Symptoms of a Bad or Failing Idler Pulley
- Visibly worn pulleys. One of the first symptoms of an issue with an idler pulley is visible wear on the pulley.
- Belt squealing. Another common symptom of a possible issue with the idler pulley is squealing from the engine belts.
- Damaged bearing or pulley.
What should I do if my alternator pulley is making noise?
Most belts should not depress more than one half of an inch, otherwise, when there is more stress on it, the belt may need to be tightened or replaced to effectively get rid of the noise. Do take note if you see that the belt or pulley is broken and damaged during your inspection.
Why is my belt pulley making a noise?
Spin the tensioner pulley by hand and listen to it. If the bearing is good, the pulley will spin freely, straight and true, without any noise. If that’s not the case, you have a bad bearing and must replace the tensioner. Unfortunately, the end result of any belt tensioner noise is usually tensioner replacement.
Why does my alternator make a grinding noise?
Unlike the grinding noise, this is a high-pitched sound. Mostly comes from either a stuck alternator pulley or a severely worn out serpentine belt. In both cases, the screeching sound is caused by the excessive friction between the pulley and the serpentine belt.
Why does my alternator squeal when I lubed it?
Also make sure to double check the belt, if any overspray got on the belt when you lubed the bearing it would have caused a belt squeal to go away as well. It wouldn’t take much of an overspray at all for that to happen If its definitely not the belt it could be a dry bearing or the brushes squealing a little on the commutator..
How to quickly pinpoint a noisy bearing, pulley, alternator?
How I quickly pinpoint a noisy bearing, pulley, alternator, water pump, on any vehicle. – YouTube How I quickly pinpoint a noisy bearing, pulley, alternator, water pump, on any vehicle. If playback doesn’t begin shortly, try restarting your device.
Spin the tensioner pulley by hand and listen to it. If the bearing is good, the pulley will spin freely, straight and true, without any noise. If that’s not the case, you have a bad bearing and must replace the tensioner. Unfortunately, the end result of any belt tensioner noise is usually tensioner replacement.
Why does my alternator make so much noise?
Let’s cover a few common causes of a noisy alternator. To generate electricity, the serpentine belt on your engine spins the alternator pulley at thousands of rotations per minute. Bearings keep everything smooth and allow the pulley to spin at such speeds.
What are the dimensions of an alternator pulley?
8-Groove Alternator Pulley, Dimensions: 28mm Belt x 59mm OD x 18.5mm Bore* (17mm Shaft)Requires 461620 tapered collar (NOT included) # 241273 – 6-Groove Pulley for Delco CS130D Alternators. Dimensions: 21mm Belt x 52mm OD x 17mm Bore.