Red Alternator Light always on when engine is running

Garfield · Post by **Garfield** » Mon Jul 02, 2007 5:46 pm

OK folks,

My '68 911T is ill.

Now I'm thinking the alternator or the voltage regulator could be dead.

Is there anything else I should check before I start to take the fan to pieces ? Any advice would be gratefully appreciated.

Garfield

Post by **Bootsy** » Mon Jul 02, 2007 7:17 pm

Worth a read, although mine was not on at all.

http://www.ddk-online.com/phpBB2/viewtopic.php?t=15510

Garfield · Post by **Garfield** » Tue Jul 03, 2007 12:41 pm

Thank you. I'll give it a go !

Garfield

bjmullan · Post by **bjmullan** » Tue Jul 03, 2007 2:09 pm

I would check all the connection both at the battery end and also from the boxes in the engine compartment, could be as simple as corroded connector.

Garfield · Post by **Garfield** » Wed Jul 04, 2007 11:37 am

Thanks, I'll check the connections.

If one had been stupid enough to connect the battery terminals the wrong way around, what would have gone pop first.....

Barry · Post by **Barry** » Wed Jul 04, 2007 11:38 am

Your dignity

.

impmad2000 · Post by **impmad2000** » Wed Jul 04, 2007 12:41 pm

Check your fuses, this may give you a clue, but alternator diode pack could well have taken a big hit. Were there big sparks ?
If your ignition switch was on, then the CDI (if it has one) box could have gone. Does it still whistle, ?
The radio could be fuse protected, check this.
There is probably little else really, unless you've got modern accesories plugged in, and these are very often reverse polarity protected.
Good luck
Tim