Blue main beam tell tale not working.

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colinlowe
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Blue main beam tell tale not working.

Post by colinlowe »

Hi all,
Sorry in advance as I suspect this has been covered somewhere, although I could not find it.
I have a '87 Autosleeper high top 1.9dg.
My issue is that the Blue telltale on the dash does not come on when high beam is being used.
I have checked the bulb and it appears OK when connected directly to 12v.

I have checked that there is a voltage at the dash ribbon connection (pins 2&3 (brown and blue/white)) but this where things get confusing for me. There appears to be a voltage when the main beam switch is pulled, but it drops again when the switch is released.
If I hold the switch as if flashing then the telltale stays on until I release the switch.
The bulb only lights very dim during this.

Is it likely to be an earth issue, if so where do I start to look please?
The other issue I have is that the clock has stopped (analogue). I have read elsewhere that the main culprit is likely to be the resistors, although in this instance it just stopped, it didn't lose or gain time before it stopped. I wonder if this might be related.
Can I 'test' the clock by connecting directly to a 12v supply?

Many thanks in advance,
Colin.
1988 AutoSleeper VHT 1.9DG

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Mocki
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Re: Blue main beam tell tale not working.

Post by Mocki »

Is the main beam actually working ? 
because the tell tale comes from the actual n/s headlight , and if it’s working when you pull back to flash , I wold suspect thee headlight main/ dip switch stalk on the steering column to be the fault 
Steve
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clift_d
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Re: Blue main beam tell tale not working.

Post by clift_d »

If it’s an earth issue, and that would be the first thing I’d check, then you need to check the earth crowns.

There are two of them next to each other under the dash by the A-pillar on the left side of the vehicle. Disconnect the various earth leads, clean up the tabs with a bit of wet and dry, a then reconnect all the earth wires again. Make sure you don’t leave miss any.
1988 LHD T25 1.6TD Westfalia Club Joker Hightop syncro

colinlowe
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Joined: 16 Sep 2014, 16:17
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Location: Swindon

Re: Blue main beam tell tale not working.

Post by colinlowe »

Thanks gents.
Yes the main beam does work on both left and right, I'll have a look at the column stalk tomorrow. I will also have a look at the earth crowns by the fuses/relays and give them a clean.
Thanks for your time. I'll let you know how it goes.
1988 AutoSleeper VHT 1.9DG

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AngeloEvs
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Re: Blue main beam tell tale not working.

Post by AngeloEvs »

Regarding the clock,  you can test it on a 12v DC supply.    The capacitor can fail and there is only one.
1987 DG Karisma LPG with remodelled interior

colinlowe
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Re: Blue main beam tell tale not working.

Post by colinlowe »

Hi Angelo, I have connected the clock directly to 12v and have no joy. Does this mean a replacement clock is required?
Cheers,
Colin.Image

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1988 AutoSleeper VHT 1.9DG

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AngeloEvs
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Re: Blue main beam tell tale not working.

Post by AngeloEvs »

There are two capacitors inside the clock,  some people have found that replacing them cures the problem.  Do a google search  and searcho on club 80 90 for 'T3 Analogue Clock capacitor repair'.  Look for a link to the samba website,  there is post that discusses repairand there is also a link to the Brickwerks club forum with a detailed thread.
1987 DG Karisma LPG with remodelled interior

colinlowe
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Re: Blue main beam tell tale not working.

Post by colinlowe »

Steve, I have ordered a new indicator stalk, just in case, before I remove the steering wheel to check things.
Cliff, I have started to scuff my knuckles cleaning up the earth's.
Thanks for your help so far.

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1988 AutoSleeper VHT 1.9DG

colinlowe
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Re: Blue main beam tell tale not working.

Post by colinlowe »

Thanks Angelo, I have found the thread on the samba site and ordered a couple of capacitors. Appreciate the help.
1988 AutoSleeper VHT 1.9DG

colinlowe
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Re: Blue main beam tell tale not working.

Post by colinlowe »

Thanks Steve  and Clift, after changing the stalk and cleaning the earths I now have a working tell tale, I also took the opportunity to change the bulb for an LED. I cannot identify exactly what fixed the issue as I didn't really find a specific fault. I am assuming cleaning connections and jiggling things around has "fixed" an intermittent connection issue.
Angelo, I have the capacitors now and will attempt replacement over the weekend hopefully.
Thanks for your help all.
Colin.
1988 AutoSleeper VHT 1.9DG

colinlowe
Posts: 19
Joined: 16 Sep 2014, 16:17
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Re: Blue main beam tell tale not working.

Post by colinlowe »

Well, capacitors arrived so I thought I'd have a go at replacement. Following the Brickwerks thread, my clock is slightly different to dismantle but I managed to get things apart. Unfortunately it looks like an issue other than the capacitors, another component looks to have cooked.
I think this is either a job for an electronics repair shop or a replacement clock. Any other suggestions welcome. Image

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1988 AutoSleeper VHT 1.9DG

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