How Hot should an Alternator get?

nick4tl

Member
Hi,
After a 30 minute drive I noticed that my alternator is very hot. Just about too hot to touch. Im just wondering if this is normal? It had a new bearing and pulley put on it recently and runs quietly. Just not sure if getting that hot is normal.
Thanks
N
 
How good is your battery? Alternator may be working harder to try and keep power in your battery.
 
Battery was replaced in December but car has barely been run since. I'll get out the multimeter tomorrow and do some checks.
 
Not sure if both bearings done actually. The belt has a tensioner so I don’t think it can be over tightened. The battery was at 12.2. I’ve stuck a smart charger on it for the night anyway. Perhaps it’s normal
 
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