Why is oil leaking from the bottom of the alternator?
Diesel engines do not produce manifold vacuum, vacuum is requited to operate the brake booster, so on diesels a separate vacuum pump is used. Many Asian engines use a pump that is attached to the back of the alternator to supply vacuum to an accumulate (a vacuum storage tank) the oil supply is solely used to lubricate the vacuum pump.
Where is the seal on a vacuum pump alternator?
User notes: The seal is located inside the alternator that prevents oil from getting inside the alt. The o-ring between the vacuum pump and alt only stops oil from leaking between the two parts. helpful? Please login or register to post a reply.
What causes a radiator alternator to stop working?
A closer observation of the radiator will reveal a system of pulleys or belts that work to convert mechanical energy into electrical energy. The alternator will stop working the moment your belt wears out and breaks or the pulley becomes damaged. These items are easy to replace. 3. Faulty fuse Fuses blow up due to a power surge or they wear out.
What to do if your alternator is over charging the battery?
Ask an assistant to start the engine and hold engine speed at about 1500 RPM. Measure voltage across the battery with your DMM. You should get 0.5 to 2 volts higher than base voltage. If you are getting more than 2 volts above base voltage, most likely your alternator is over-charging the battery or the battery is faulty.
Diesel engines do not produce manifold vacuum, vacuum is requited to operate the brake booster, so on diesels a separate vacuum pump is used. Many Asian engines use a pump that is attached to the back of the alternator to supply vacuum to an accumulate (a vacuum storage tank) the oil supply is solely used to lubricate the vacuum pump.
Why does my aftermarket alternator keep blowing up?
Aftermarket alternators on some vehicles are known to have this type of problem. The vehicle computer box might be controlling your charge rate to the battery and blowing alternators up due to excessive resistance. Rectifier diodes in aftermarket alternators are known to pop like this.
How does a vacuum pump keep oil out of an alternator?
There will be a pressure hose from the main oil gallery and a drain back hose to the sump, a seal in the back of the pump keeps oil out of the alternator. User notes: The seal is located inside the alternator that prevents oil from getting inside the alt. The o-ring between the vacuum pump and alt only stops oil from leaking between the two parts.
Ask an assistant to start the engine and hold engine speed at about 1500 RPM. Measure voltage across the battery with your DMM. You should get 0.5 to 2 volts higher than base voltage. If you are getting more than 2 volts above base voltage, most likely your alternator is over-charging the battery or the battery is faulty.