Originally Posted by wrobleskis
Well, It looks like my Voltage regulator is acting up. I'm getting 16+ volts.
I am wondering if I should change out the Voltage Regulator or just get a new alternator.
I have an 82 CJ7 with 258 I6 and Junkyard TBI.
I do not know how new or old the existing alternator is. It appears to be stock type. I don't plan on adding any electronics that would require a power upgrade.
Looks like $25 for the regulator and $50 for the alternator.
Any comments would be greatly appreciated.
I don't want to sound like a broken record...
But since you have TBI, it would be advisible to swtich your alternator.
The Delco SI series does NOT have a rectifier that gets along with electronic fuel injection very well.
A better swap would be to a CS alternator with regulation/rectification that gets along much better with fuel injection and charges better at lower RPMs.
If you rebuild/replace your alternator, make sure you add a dedicated ground wire to the case back to the primary 'Ground' or battery terminal...
This will give you MUCH better voltage control, your regulator will last longer, and it won't be nearly as hard on the Fuel Injection Computer when the initial voltage spike happens as the alternator starts charging.