Alternator output voltage of Griff 500

[dnb]

What should the alternator output be on a standard Griffith 500?

Mine is between 13.2 and 13.5v at 2000 RPM. I am fairly sure this is too low (14.2v sounds better to me) so I'm about to add the alternator to the long list of things that has been replaced on my car this year.

Thanks.

[Pete Mac]

dnb said:

What should the alternator output be on a standard Griffith 500?

Mine is between 13.2 and 13.5v at 2000 RPM. I am fairly sure this is too low (14.2v sounds better to me) so I'm about to add the alternator to the long list of things that has been replaced on my car this year.

Thanks.

I'm getting somewhere between 14.0v and 15.0v on the dash gauge. I haven't checked it with a meter. Pete

[PeteGriff]

dnb said:

What should the alternator output be on a standard Griffith 500?

Mine is between 13.2 and 13.5v at 2000 RPM. I am fairly sure this is too low (14.2v sounds better to me) so I'm about to add the alternator to the long list of things that has been replaced on my car this year.

Thanks.

A good healthy alternator should give a charging voltage of 14.5V to 14.7V! I would suspect the regulator on your alternator is on it's way out. This may be followed at some point by the red charge LED flickering. Regards, Pete

[tivver500]

Don't rely on the dash gauge without confirming voltage with a good digital multimeter.....
Dash gauges are probably good to +/- 10%.......
Charging voltage around 14 volts. Fully charged battery around 12.8 to 13 volts!

[dnb]

Yep. New regulator gives nice stable 14.2v on my meter. I don't have a volt gauge in the dash.