TVR Tuscan - alternator change

[rgula]

Evening,

I travelled to Le Mans weekend just gone in a 2002 TVR Tuscan and on arrival, I parked up and my battery was flat. Luckily a friend had a charger with him, which I duels used. The battery is 4weeks old. I checked all the usuals - battery connection and 100/125 amp fuse. Both seem to be in good order.

Looks like I need to change the alternator and I would like to attempt this myself. Does anyone have any practical advice on 1) where to buy a new one/type 2) idiots guide to doing 3) what not to do and 4) possible any pictures or video clips that can be shared.

Any help would be really appreciated

[nawarne]

Have you put a multi-meter on the existing alternator and checked the output voltage??

You should be looking at 13.5 to 14 volts.

Did/does the alternator make whining noises when rotating? (believe that's a sign of diode pack failure).

Might be worth doing these checks before buying a new unit.....Could be wiring?


Nick

[rgula]

Thanks Nick, I will check. How is best to check this? Ie, where do I place the connectors..

Can I start the car with the air filter off?

[S6PNJ]

rgula said:

Does anyone have any practical advice on where to buy a new one/type

Any help would be really appreciated

Tuscan Parts Wiki at the top of this forum? https://www.pistonheads.com/gassing/topic.asp?h=0&...

[Oneball]

rgula said:

Thanks Nick, I will check. How is best to check this? Ie, where do I place the connectors..

Can I start the car with the air filter off?

You can get a good idea what’s going on by looking at the dash. There’s a voltage reading in the LCD display.

With the ignition on and engine off a good battery will read over 12v.

With the engine running and the system charging the reading should be around 14.5v