How long does an original alternator last?
How long does an original alternator last?
about 6-10 years
In general, you can expect alternators to last about 6-10 years, or about 80,000-150,000 miles.
How much does it cost to repair a pre 71 alternator?
Pre-’71 alternators are also similar, but do not have an internal voltage regulator, and use individual diodes in place of a diode trio and bridge rectifier. Alternators fail frequently, and good rebuilt units are pricey (typically in the $150+ range). But virtually any alternator can be easily repaired for less than $50.
What kind of alternator does a car before the 1970s have?
Cars made before the late 1970s have an alternator with an external voltage regulator. On European cars, they’re sometimes called a “three-wire alternator.”
Is it easy to convert an internally regulated alternator?
If your original wiring isn’t already butchered, it is very easy to do this conversion. There is a cheap conversion kit that plugs directly into your original wiring so you don’t need to mess with anything. Then, the internally regulated alternator plugs right into the conversion wiring.
Can a three wire alternator be replaced by a single wire unit?
Age and repeated plugging and unplugging of the three-pronged plug can cause it to crack and make the spade connectors retreat out the back when you push the plug in. For all these reasons, a nice upgrade to a vintage car is to replace the externally-regulated three-wire alternator with a newer internally-regulated single-wire unit.
What kind of regulator does a GM alternator use?
Assuming you want to upgrade, we’ll take a couple of the more common options and run through the wiring variables. The original 1960’s GM alternator employs an external voltage regulator. This alternator (10-DN), uses a flat, two-prong connection at the back of the alternator.
What’s the best way to replace an alternator?
Ensure all the bolt and/or nut threads are started and tighten them evenly. On some vehicles, the electrical connections will need to be installed first before permanently tightening the alternator for access reasons. Place the drive belt in position and ‘rotate’ the belt tensioner so the belt can be installed.
How to identify your GM alternator USA built high output?
This is just a quick visual identification guide for Delco type alternators. First Alternator used on GM Vehicles to replace old DC Generators. External regulator mounted on the firewall.
When did alternators replace generators in early Chevys?
Among the most overlooked aspects of swapping late-model engines into early Chevys is upgrading the charging system. It was in the early ’60s when alternators replaced generators. Since then, a landslide of charging system and alternator enhancements have followed.
