1984 conundrum

An alchemy of sparks, copper wire and earth

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Mocki
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Re: 1984 conundrum

Post by Mocki »

Mocki wrote:The inlet manifold heater needs to wired through the relay triggered by the thermo switch , as does the carb heater , the choke and the fuel cut off from the ignition switched live
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1989 2.1LpgWBX HiTop Leisuredrive Camper
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937carrera
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Re: 1984 conundrum

Post by 937carrera »

I spent some time last night looking for an early WBX wiring diagram.... unsuccessfully of course.

As a proper one doesn't seem to be available, how about one of you guys with one that is properly wired (or eventually done) doing a current flow diagram to cover the carb and related connections ?

Even something hand drawn would seem to be a big help for those whose vans have been subject to "improvement" through the years

I'm glad Ads1987 has found this thread - I was about to put the two of you in touch when I saw his post
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine

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DoubleOSeven
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Re: 1984 conundrum

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Happy to draw a schematic once proven. Mocki - thanks also.
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1984 conundrum

Post by DoubleOSeven »

Mocki’s and a blank for other owners current wiring. Only issue with my van on this arrangement is why one wire is 2,5mm and the other is 0,5mm with a plug end, not socket. Plug shouldn't be a feed?

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Last edited by DoubleOSeven on 06 Nov 2019, 10:28, edited 2 times in total.
1990 Volkswagen Transporter 2.1 Manual
2005 Porsche 911 3.6 Manual
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DoubleOSeven
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Re: 1984 conundrum

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1990 Volkswagen Transporter 2.1 Manual
2005 Porsche 911 3.6 Manual
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937carrera
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Re: 1984 conundrum

Post by 937carrera »

They're a bit small & blurry but after magnifying them are you sure this is correct ?

My recollection was that the manifold heater had quite a high current draw and looking at the later vans it is that that has the 2.5mm wire (N51 in current track 24)
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine

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DoubleOSeven
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Re: 1984 conundrum

Post by DoubleOSeven »

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1990 Volkswagen Transporter 2.1 Manual
2005 Porsche 911 3.6 Manual
2012 Volkswagen Polo 1.4 Automatic

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DoubleOSeven
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Re: 1984 conundrum

Post by DoubleOSeven »

Manifold off 2,5mm to match late vans:

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1990 Volkswagen Transporter 2.1 Manual
2005 Porsche 911 3.6 Manual
2012 Volkswagen Polo 1.4 Automatic

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937carrera
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Re: 1984 conundrum

Post by 937carrera »

I am trying to help here (even if it may not appear that way). That said I don't have any experience of early WBX so experience trumps my reading of the wiring diagrams.

It may be helpful to put the VW component references on the diagram, to avoid ambiguity
I can't see the relay wiring mentioned
On the late WBX the thermoswitch acts as the trigger for the J81 relay - the diagram shows the hedgehog wired direct

I have uploaded the page from the late WBX for easy comparison
Attachments
late_wbx.jpg
late_wbx.jpg (34.3 KiB) Viewed 2500 times
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine

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Mocki
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1984 conundrum

Post by Mocki »

the relay is after the thermo switch, the thermo switch triggers the relay , or what is the point of the relay ???

the power comes from the +12vdc stud in the black box , through the relay to the carb and manifold heaters

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Steve
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1988 2.1 Caravelle TS TinTop Camper 
 

Ads1987
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Re: 1984 conundrum

Post by Ads1987 »

I have mine wired similar to Mocki but according to the haynes, the choke is also fed off the same 2,5 wire that feeds the manifold heater and carb body heater.

I had assumed the choke would only need to be operated for as long as the heaters are?

So at this stage the lilac/black fits onto the thermoswitch, from cold this means the preheat relay is activated and the red 2.5mm cable is powered which in turn powers the manifold heater, carb heater and choke. When the thermoswitch reaches temperature it turns off and the relay stops the power to both heaters and the coke.

Hopefully that makes sense and is correct, I just still have mystery cables that i'm going to identify with my multimeter over this week!

If it is correct and once I've actually got it working i'll do diagram/pictures
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Re: 1984 conundrum

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Haynes only covers late vans, remember.
1990 Volkswagen Transporter 2.1 Manual
2005 Porsche 911 3.6 Manual
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937carrera
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Re: 1984 conundrum

Post by 937carrera »

DoubleOSeven wrote:Haynes only covers late vans, remember.

are you sure.... I just looked in the book, the wiring is not late van wiring, perhaps it is early for this bit.

Does this help ?

File is being uploaded by Mocki
Last edited by 937carrera on 07 Nov 2019, 17:20, edited 1 time in total.
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine

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Mocki
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Re: 1984 conundrum

Post by Mocki »

937carrera wrote:
DoubleOSeven wrote:Haynes only covers late vans, remember.

are you sure.... I just looked in the book, the wiring is not late van wiring, perhaps it is early for this bit.

Does this help ?


Well, I have annotated a wiring diagram and was trying to upload it, but I get the message

"Sorry, the board attachment quota has been reached"

I'll E D I T this post when the attachment quota issue has been solved. I reduced the quality down to 36KB, 566 x 768
Email it to me As a jpeg and I will upload it ....
Steve
tel / txt O7947-137911
👀
________________

1989 2.1LpgWBX HiTop Leisuredrive Camper
1988 2.1 Caravelle TS TinTop Camper 
 

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937carrera
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Re: 1984 conundrum

Post by 937carrera »

Done, just now :)
1981 RHD 2.0 Aircooled Leisuredrive project, CU engine
1990 RHD 1.9 Auto Sleeper with DF/DG engine

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