andyfreelandy
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Get this - see if anyone disagrees !
My 2002 TD4 has just had an alternator failure. Just after going through 12" water, but hey, it has done 150,000 miles. I will reveal the failure mode once I have done an autopsy, but just thinking out loud....
If the car has done 150k miles at an average of 40mph, it has had the engine running for at least 225000 minutes.
If the alternator runs at twice engine speed (looking at pulleys) then it is not unreasonable to assume that it goes at around 5,000 rpm. So that would mean that the alternator has rotated about 1.1 billion times.
Bet the brushes are worn a bit.....
My 2002 TD4 has just had an alternator failure. Just after going through 12" water, but hey, it has done 150,000 miles. I will reveal the failure mode once I have done an autopsy, but just thinking out loud....
If the car has done 150k miles at an average of 40mph, it has had the engine running for at least 225000 minutes.
If the alternator runs at twice engine speed (looking at pulleys) then it is not unreasonable to assume that it goes at around 5,000 rpm. So that would mean that the alternator has rotated about 1.1 billion times.
Bet the brushes are worn a bit.....