Genny light on, suspect regulator. Can it be tested?

Euro_67 Wolfsburg Wizard

690 posts · joined Oct 2003 · 22 Feb 2015, 10:20 pm

#1008808

My 1776 had an internally regulated Alternator.
When it was installed I simply bypassed the reg under the back seat.

I am now going back to a generator and connected up the voltage reg again.

One thing I did notice is the loom in my '67 does not have the additional wire to connect the Generator body to the regulator body / ground.

My Generator light is hard on with the engine running, and I'm looking for some advice.

I found some details on testing the generator by isolating it from the car loom, and jumping DF to the generator body then measuring for voltage between D+ and the generator body.

Im seeing the voltage increase with revs, peaking at about 30V. This is the result the test was supposed to yield which means the generator is working, and the fault in the Regulator.

Can the regulators be tested?

Thanks.

psimitar Son of Jim - Creator of Good

2,506 posts · joined Jan 2009 · 22 Feb 2015, 10:53 pm

#1008814

check out Speedy Jims website at Speedyjim.net

Tell you how to fault find a genny and regulator

madness is in the eye of the beholder 👍

Euro_67 Wolfsburg Wizard

690 posts · joined Oct 2003 · 22 Feb 2015, 11:05 pm

#1008815

Thanks

Grey 57 Old Grey Cruiser

2,937 posts · joined Aug 2002 · 23 Feb 2015, 9:11 pm

#1008848

Did you polarise your genny when you refitted it?

Euro_67 Wolfsburg Wizard

690 posts · joined Oct 2003 · 24 Feb 2015, 6:37 pm

#1008882

Yup, problem resolved. Polarize, your genny good people.

psimitar Son of Jim - Creator of Good

2,506 posts · joined Jan 2009 · 24 Feb 2015, 10:38 pm

#1008911

Euro_67 wrote:Yup, problem resolved. Polarize, your genny good people.

Groovy 🙂 Glad it all worked out and an easy fix to boot 😀

madness is in the eye of the beholder 👍