Can you replace an alternator pulley without replacing the alternator?
In many cases it is possible to remove and install the overrunning alternator pulley while the alternator is still on the engine. The plastic protective cap cannot be re-used after it has been removed from the pulley. A replacement cap is supplied with the new part.
How tight should alternator pulley nut be?
about 70 ft-lbs
Tighten the nut with an impact wrench until the lock washer is completely closed and the nut is tight (about 70 ft-lbs). Do not over tighten.
Can I put a smaller pulley on my alternator?
Using a smaller pulley will speed the rotor up, and the alternator will produce more power. This won’t effect the ECM or anything else in the vehicle, since top voltage will still be regulated.
How do you fix a pulley sound on a alternator?
How to Fix a Squeaky Alternator Bearing
- Kill the Engine. The first thing you should after you check for potential alternator issues is to turn off your car engine, and then check the state of the bearings.
- Lose the Belt. Once you switch off the engine, raise the hood.
- Inspect the Bearings.
- Resolve the Issue.
Can I put a bigger pulley on my alternator?
If you put a bigger pulley on it will slow the alt. rpms down. I ran a 200 amp alternator with a 3.2″ pulley with the KB and Eaton set ups. If you check the Terminator section you will see dozens of failed alternators due to putting a lower pulley set up on the car and overspinning the alt.
What is alternator pulley ratio?
The pulley ratio is the diameter of the crankshaft pulley divided by the diameter of the alternator pulley. Multiply that number times the engine RPM to get the alternator RPM. For example, a 6 inch crankshaft pulley and a 2 inch alternator pulley equals a pulley ratio of 3:1.
Why is my pulley making noise?
Idler pulley slippage is likely to follow after it becomes worn out enough. This will cause the pulley to bind and then rub against the engine belt. As a result, there will be squealing noises coming from the engine area that will only get worse until the pulley is replaced.