For someone with experience working on cars: A reasonably experienced mechanic might be able to complete the job in 2-4 hours. This assumes they're familiar with the GTO's engine bay and have the right tools.
For someone with limited mechanical experience: It could easily take 6-8 hours, or even longer. This accounts for the time spent figuring things out, potentially searching for information, and dealing with unforeseen difficulties. It's crucial to have a repair manual specific to your GTO.
Factors influencing time:
* Access: The GTO's engine bay is relatively cramped. Limited access can significantly increase the time required.
* Rust: Older cars often have rusted bolts, which can be extremely time-consuming to remove. Penetrating oil and patience are key.
* Wiring: Properly connecting the alternator wiring is crucial and can take some time, especially if you're unfamiliar with the car's electrical system.
* Tools: Having the right tools (sockets, wrenches, ratchets, etc.) will speed things up considerably.
Recommendation: If you're not comfortable working on cars, it's best to take it to a mechanic. While it might cost more, it will save you time and potential frustration (and possible damage). Always consult a repair manual specific to your 1970 Pontiac GTO for detailed instructions.
