Search found 1124 matches

by Robsey
15 Mar 2026, 22:35
Forum: Mechanical
Topic: Retro Fit 2.1 oil cooler to early van
Replies: 0
Views: 108

Retro Fit 2.1 oil cooler to early van

Hi All, You are bound to ask, but yes I still haven't fully plumbed in my 2.1 wbx into my 1983 van. I have read a few posts were people have retrofitted the oil cooler despite having the early cooling system in the van. https://i.postimg.cc/pT6gT0jy/20250530_222149.jpg https://i.postimg.cc/qvjWT0dZ/...
by Robsey
01 Mar 2026, 15:33
Forum: Electrical & Instrumentation
Topic: Electrical issues / questions 1.9DG water-cooled
Replies: 16
Views: 2647

Re: Electrical issues / questions 1.9DG water-cooled

There are two separate sets of connections to the carb - One set that are ignition live, and come direct from the ignition coil connection. (Black wires). Fuel cut off / anti-dieselling solenoid __________________________ The second is the manifold heater (red wire). The manifold heater. Controlled ...
by Robsey
02 Feb 2026, 23:28
Forum: Electrical & Instrumentation
Topic: Installing a CD or deeper stereo in dash
Replies: 6
Views: 6547

Re: Installing a CD or deeper stereo in dash

Thank you for finding that video.
It follows the mantra of the forum to inspire members and visitors.

I feel tempted to whizz my dash out to do the heater casing modification when I am working on it next.
by Robsey
01 Feb 2026, 21:00
Forum: Electrical & Instrumentation
Topic: Installing a CD or deeper stereo in dash
Replies: 6
Views: 6547

Re: Installing a CD or deeper stereo in dash

I recall a post years ago where someone had warmed the heater box and deformed the plastic to clear the back of the radio... As for me, I did want a full size VW radio cassette and separate cd unit, similar to those on late 80s / early 90s cars. As in the Alpha, Beta and Gamma series of radios. Some...
by Robsey
31 Jan 2026, 23:15
Forum: Electrical & Instrumentation
Topic: Installing a CD or deeper stereo in dash
Replies: 6
Views: 6547

Re: Installing a CD or deeper stereo in dash

I am surprised nobody has designed a 3d printed spacer that looks more part of the dash, rather than the radio sticking out of the dash by about 25mm ( 1" ) overall.
by Robsey
31 Dec 2025, 21:11
Forum: Electrical & Instrumentation
Topic: OBD 2 port
Replies: 2
Views: 9095

Re: OBD 2 port

OBD2 did not really come into existence for most marques until 1995, so long after European T3 production ceased. Neither DigiJet nor Digifant came with onboard diagnostics. The give away is no MIL or Engine Management light on the dash. Some vehicles (Not T3's) were fitted with later Jetronic contr...
by Robsey
29 Dec 2025, 23:13
Forum: Electrical & Instrumentation
Topic: Oil Pressure Warning Light Inoperative
Replies: 12
Views: 12527

Re: Oil Pressure Warning Light Inoperative

I recall dueller having issues last year with instrument wiring defying logic.
His turned out to be chafed wiring under the van.

I wonder if you have chafed wiring too, where the inner conductors are shorting to earth.
by Robsey
15 Dec 2025, 21:45
Forum: Electrical & Instrumentation
Topic: Oil Pressure Warning Light Inoperative
Replies: 12
Views: 12527

Re: Oil Pressure Warning Light Inoperative

I recently repaired a very tired cluster. None of the LEDs worked. They are indeed 5mm diffused LEDs, 2 to 2.5. Volts sounds about right. Bear in mind, back in the 80s there was no such thing as high-brightness LEDs. Nowadays they are all high-brightness LEDs. When I repaired the dash, the LED's wer...
by Robsey
05 Dec 2025, 21:25
Forum: Electrical & Instrumentation
Topic: Why did my fuse box melt?
Replies: 8
Views: 11003

Re: Why did my fuse box melt?

External Connections are as Listed. So for M1, it is internally linked to A9, and G7 Which is externally connected as follows:- A9 WHITE / BLACK LIGHT SWITCH CONTACT 56 feed to stalk dip/high switch and pins G7 and M1 Pin G7 56 Voltage rail. (Feed to head lamp circuit). Internal connections to:- A9 ...
by Robsey
30 Nov 2025, 21:22
Forum: Electrical & Instrumentation
Topic: Why did my fuse box melt?
Replies: 8
Views: 11003

Re: Why did my fuse box melt?

All the fuse box connections are listed here...

viewtopic.php?t=173773

It starts at the "G" pins first...
But keep reading on, and you will come to the "M" pins later.
by Robsey
23 Nov 2025, 13:18
Forum: Electrical & Instrumentation
Topic: Where's my buzzer?
Replies: 7
Views: 10503

Re: Where's my buzzer?

Reverse engineering for the most part should be quite straight forward if you base your design on what the circuit does, not how it is put together. The main functions are :- 1 - Buzzer test with ignition on, but alternator light still on. Buzzer should stop when engine starts and the charge light g...
by Robsey
21 Nov 2025, 22:20
Forum: Electrical & Instrumentation
Topic: Where's my buzzer?
Replies: 7
Views: 10503

Re: Where's my buzzer?

It is in the small L shaped circuit board on the back of speedometer heads in vans from approx 85 / 86 onwards.

Image

Image
by Robsey
04 Nov 2025, 14:20
Forum: Electrical & Instrumentation
Topic: Wiring on Rear of Speedometer.
Replies: 5
Views: 11192

Re: Wiring on Rear of Speedometer.

The L shaped circuit board strapped around the speedometer head is for the Dynamic Oil Pressure System (DOPS), or commonly known as the Buzzer of Doom. This will have inputs from the charge light, 0.3bar and 0.9 to 1.6bar sensor, ground and rpm signal. None of the inputs are for the road speed. ____...
by Robsey
28 Sep 2025, 17:11
Forum: Electrical & Instrumentation
Topic: Blower motor replacement
Replies: 18
Views: 25348

Re: Blower motor replacement

When I converted my heater to PWM speed control, I replaced the motor and foam kit too. Someone had been there 30 years earlier as I did not need to break any welded-seals, I just popped off the clips. The foam inside was like moth wings.... turned to powder as soon as you looked at it. The blowers ...
by Robsey
21 Sep 2025, 16:49
Forum: Electrical & Instrumentation
Topic: Dashboard PCB Replacement (CJH Design)
Replies: 148
Views: 83909

Re: Dashboard PCB Replacement (CJH Design)

Just checking my notes for the DOPs.

1 = 0.3 bar (sender above the left pushrods)
2 = 0.9 bar (sender behing water pump pulley)

3 = Ignition live 12 volts
4 = warning LED
5 = ground
6 = rpm signal

Details c/o documentation supplied by Angelo EVS.