[ROVERNET - UK] Re: Need help - Cyclops voltage regulator

Geoff Kirkpatrick britcarnut at yahoo.com
Thu May 24 17:18:44 BST 2007

It doesn't engage as the RPMs increase, allowing the voltage to climb
unrestricted.  If I manually engage it, then it works and keeps the
voltage in the 15V range, but then it disengages as soon as the revs drop
back to idle and will not re-engage.  I've cleaned all the contacts and
played with the adjuster screw but none of this makes any difference in
its behavior.    

I just had the generator rebuilt, and I think the voltage regulator
failure was what damaged the generator to begin with.

Any ideas?

Thanks - 

> What does it not do now?
> Uusually cleaning the points is a first step.
> -----Original Message-----
> From: rovernet-bounces at lyris.ccdata.com
> [mailto:rovernet-bounces at lyris.ccdata.com]On Behalf Of Geoff Kirkpatrick
> Sent: Thursday, 24 May 2007 9:16 am
> To: rovernet at lyris.ccdata.com
> Subject: [ROVERNET - UK] Need help - Cyclops voltage regulator
> Hi all,
> The voltage regulator in my '51 P4 Cyclops has failed, and I'm looking
> at
> repair or replacement options.  I found this unit on Ebay, identified as
> a
> Jaguar XK120 unit:
> It looks identically external, and almost identical internally except
> that
> the cutout design is slightly different from mine.  Can anyone confirm
> that this unit is functionally the same as the P4 unit?
> Alternatively, is there anyone around who repairs/rebuilds these things?
> Thanks,
> Geoff

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