Classic 2CV Racing Club

Classic 2CV Racing Club Ltd Forum => Technical => Topic started by: Simon Crook on November 11, 2008, 08:10:32

Title: Voltage Problems
Post by: Simon Crook on November 11, 2008, 08:10:32
Heres one for you technical lot! when the engine is running, on tick over I have 13.7 volts at the battery and at the fuse box, when I rev the engine the battery stays the same but the fuse box goes up to 17 volts, have tried 4 voltage regulators (all about the same voltage) the voltage gauge is reading the same.

what do you think ???
Title: Re: Voltage Problems
Post by: Derek Coghill on November 11, 2008, 08:26:14
Check the wiring; sounds like the fusebox feed has bypassed the voltage regulator somehow. Must dash, off to school.
Title: Re: Voltage Problems
Post by: Paul Robertson on November 11, 2008, 09:26:49
As derek says wiring ,you may have the power feed where the exciter should be simon,try swapping the two end contacts around, the centre one should be the earth.
Title: Re: Voltage Problems
Post by: Simon Crook on November 11, 2008, 10:16:50
thanks Derek/Paul will give that a go
Title: Re: Voltage Problems
Post by: Simon Crook on November 12, 2008, 05:47:12
swapped the two wires around, lots of banging and popping through the carb (flames) so not sure if thats the problem!
Title: Re: Voltage Problems
Post by: Paul Robertson on November 12, 2008, 09:25:03
Does the centre connection go to earth simon?
Title: Re: Voltage Problems
Post by: Simon Crook on November 12, 2008, 11:11:50
Hi Paul yep white wire going to earth
Title: Re: Voltage Problems
Post by: Paul Robertson on November 13, 2008, 09:41:07
The power feed to the fuse box must be unregulated then simon.Ie straight from the alternator instead of from the battery.I take my power feed from the kill switch,try that .
Paul
Title: Re: Voltage Problems
Post by: Simon Crook on November 13, 2008, 14:34:22
Hi Paul, my fuse box same as yours, straight from the kill switch,

where should D+ wire go too incase ive done that bit wrong


Title: Re: Voltage Problems
Post by: Simon Crook on November 24, 2008, 04:54:15
 ??? ??? ??? ???
Title: Re: Voltage Problems
Post by: Trevor Williams on November 24, 2008, 19:43:29
Simon, Are you in the UK at the moment?
If you want to pop round one evening or at the weekend you can gave a look at the wiring in my car
Trevor
Title: Re: Voltage Problems
Post by: Simon Crook on November 25, 2008, 05:59:24
Hi Trevor

Yep back in a Chilly Pinewood Studios at the moment, I will take you up on your offer of popping over, will mail you when I get the chance to come over.

Its a weird one, I only found out about the problem when the LED rain light decided to explode! I have change alternators, voltage regulators wiring and still have the problem!

The only thing I think it could be is where the D+ wire should go, the other two /  D- earth, DF - alternator 
thanks

Simon