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Head lights flickering at idle

Printed From: The Brick-yard
Category: T3 Section
Forum Name: T3 Tech help
Forum Description: Forum for T3 specific problems.
URL: http://www.brick-yard.co.uk/forum/forum_posts.asp?TID=93222
Printed Date: 28 Mar 24 at 14:17
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com


Topic: Head lights flickering at idle
Posted By: Dropchip
Subject: Head lights flickering at idle
Date Posted: 09 Jan 18 at 20:31
Hi guys.

Van has a new problem 😂. Head lights have started to flickers quite badly at idle, stops when driving/revs are higher. Have tested the alternator diode and it seems fine. Also it was a brand new alternator about 8 months ago. I’m running an EJ25 conversion. So it’s the Subaru alternator.

Any idea if I could check anything else?




Replies:
Posted By: mrhutch
Date Posted: 09 Jan 18 at 22:57
battery dropped a cell?

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T3 1981 Westy Vanagon - thinks lubricant is a fuel


Posted By: Horse
Date Posted: 11 Jan 18 at 09:20
.


Posted By: Pete Westy
Date Posted: 11 Jan 18 at 16:59
Originally posted by Horse Horse wrote:

.

Has this thread just come to a full stop? Or was that the point?



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Pete



I've spent so much time under the Atlantic I'm changing my name to Titanic.


Posted By: Dropchip
Date Posted: 11 Jan 18 at 23:34
50% off at Euro on battery’s ordered a new one.

I’ll let you know if it was the battery 😀


Posted By: Horse
Date Posted: 12 Jan 18 at 13:22
Originally posted by Pete Westy Pete Westy wrote:

Originally posted by Horse Horse wrote:

.

Has this thread just come to a full stop? Or was that the point?




I'd posted this link to a similar problem, but then I read the post properly! http://forum.club8090.co.uk/viewtopic.php?f=39&t=156905" rel="nofollow - http://forum.club8090.co.uk/viewtopic.php?f=39&t=156905



Posted By: rowlesy
Date Posted: 15 Jan 18 at 07:46
exciter not working correctly? my diesel needs a rev to get it working properly - possible brushes have worn?



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UberFukz broke another!       sucky sucky five dollah!

always out numbered never out gunned!    RWS welding 07846 380 467 (worcs)


Posted By: Dropchip
Date Posted: 15 Jan 18 at 21:02
WHAt is the exciter bud? And where is it?


Posted By: rowlesy
Date Posted: 15 Jan 18 at 21:33
exciter is the thin lead to alternator. passes small current to "excite" and get the alternator to start working. usually a blip with the throttle sorts it - once the alternators kicking out maximum voltage (14.4v ish) it'll stay there while the engine is running. if you have to keep above a certain range (revs) the brushes may need replacing.


my jetta has a 90a alternator that works well - but if you give it some beans everything gets brighter!
my bus runs a little lumpy when cold (prob glow plugs) and the battery light flickers on the dash - 950 rpm a blip on the throttle makes it go out......... character traits i call them!



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UberFukz broke another!       sucky sucky five dollah!

always out numbered never out gunned!    RWS welding 07846 380 467 (worcs)


Posted By: e42b
Date Posted: 26 Jan 18 at 21:46
Hi,
that's worth to trace but the first thing i'd do is to follow all the plugs in order to clean them, and secondly have an eye on the light switch, which is known to give up after a decent amount of working hours. Thirdly, the ignition switch is also known for not beeing able to survive to the end of all days.
Good luck
E.



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