Where do these wires go?

[gnavs]

As stated.  I want to just ground them but the insulation isn't green which has me hesitating.  Does anyone know where they're supposed to go?  This is on a MK3 AAZ.
Thanks.

[rodpaslow]

By my experience any brown wire in A2 & A3 cars (generally) are ground.  I have no experience with AAZ though.

It looks to me like they connected to the water outlet at the side of the head so I'd be 90% sure they are ground.  Easy to test - connect a test light to pos on battery and touch each of them - this MAY help tell if they should be ground or not...

[Vincent Waldon]

Yup... they generally attach to the coolant outlet flange via a double nut.

 

[gnavs]

thanks fellas, should be starting the thing up this weekend if all goes well.  I'll make sure to post pics/videos.

[Vitwagen]

Er, are those are on the engine side of the standard electrical plug, red with a white stripe?

If so, they're the glowplug feed. Both go to the nearest glowplug (gearbox end). I've had 2 UK AAZs, both were like this (and the wires looked identical to you pic).


HTH

[R.O.R-2.0]

Er, are those are on the engine side of the standard electrical plug, red with a white stripe?

If so, they're the glowplug feed. Both go to the nearest glowplug (gearbox end). I've had 2 UK AAZs, both were like this (and the wires looked identical to you pic).


HTH

the glow plug feed wires are much larger gauge than those wires are..

[8v-of-fury]

Why does your AAZ valve cover have studs around the edge?

[vanagonturbo]

Yup... they generally attach to the coolant outlet flange via a double nut.

 

This.

[Vincent Waldon]

Well, now that I look at it again the colour is a bit unclear in the picture... at least for my feeble eyes.

If they be truely brown, they should be grounds.

If red with a white stripe, they should be the double wires used to provide power to the glow plug buss... the AAZ uses a couple of small wires in parallel rather than a single heavy wire like the 1.6, since the wires have to pass thru the pins of the big engine connector.

Oh, and Ive guessing the OP has a G60 aluminum valve cover that he's bolted down around the perimeter.

"CSI: Diesel Engines" is my favorite show. 

[Vitwagen]

Er, are those are on the engine side of the standard electrical plug, red with a white stripe?

If so, they're the glowplug feed. Both go to the nearest glowplug (gearbox end). I've had 2 UK AAZs, both were like this (and the wires looked identical to you pic).


HTH

the glow plug feed wires are much larger gauge than those wires are..

Nope, not on the 2 factory AAZs I've seen. if you follow the wiring through the plug, the 2 wires join into one larger gauge wire (also red with white stripe).

[R.O.R-2.0]

Er, are those are on the engine side of the standard electrical plug, red with a white stripe?

If so, they're the glowplug feed. Both go to the nearest glowplug (gearbox end). I've had 2 UK AAZs, both were like this (and the wires looked identical to you pic).


HTH

the glow plug feed wires are much larger gauge than those wires are..

Nope, not on the 2 factory AAZs I've seen. if you follow the wiring through the plug, the 2 wires join into one larger gauge wire (also red with white stripe).

sorry, they looked brown to me..

im not used to seeing 2 glow plug wires on a 4 banger, only cars ive seen that setup on, are the 5 banger diesels..

[gnavs]

Why does your AAZ valve cover have studs around the edge?

As Vince stated, I modified the head to fit the G60 valve cover.

Thanks for the help guys.  Can I safely delete these wires if I'm using Vince's pimped glowplug system?  I'm thinking of bypassing the system entirely and running the glowplugs with a momentary switch mounted in the cabin.

[Vincent Waldon]

Can I safely delete these wires if I'm using Vince's pimped glowplug system? 

Yup... you'll provide your own heavy-duty power feed to the glowplugs from the extra solenoid.

You can drive the extra soleniod from the original output of the glowplug fuse bolted to the firewall, or use a manual pushbutton as you mention.  If you pull the glow plug fuse you've disconnected those two wires in your picture and you can tape-em-and-forget-em.

[gnavs]

Awesome, thanks Vince