Thread: Post-recovery rapid battery drain

Originally Posted by Blknight.aus

the saying came from the military I'm not entirely sure of the origin of the phrase but its basically a reference for going and having a look at something using your MK I Eyeball. Most likely it came from someone in the stores stream

the full phrase as I recall it is

device, observational, Eyeball. MK I.

Interesting.

Originally Posted by timbo

So I traced the glowplug circuit to a mass of taped up wires and conduit that runs along the top of the firewall, so physically tracing it is out of the question.

Wipe the wire at the glow plugs clean with some methylated spirits, check the wires colour and the trace along with the size of the wire, should be black with yellow trace.
for the direction it then travels to the relay ( part number PRC 6913 ), a clue can be the way it curves as it enters into the wiring loam.

Originally Posted by timbo

Also, is this what I'm looking for? LAND ROVER DEFENDER 200/300TDI GLOW PLUG TIMER RELAY | eBay

Yes that's the one.

The Glow plug timer relay is supposed to be mounted, under bonnet centre skuttle area.

The other thinner wires are ;
1. ( WR ) White-red trace, switched by ignition switch, starter position
2. ( YB ) Yellow-black trace, supply to cold start warning light
3. ( W ) White, switched by ignition switch, run position
4. ( B ) Black, earth path for the glow plug warning lamp

The two thick wires are ;
5. ( N ) Brown, from battery
6. ( BY ) Black-Yellow trace, switched wire from relay contacts going to the glow plug wire ( YB ) Yellow-Black trace.

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Originally Posted by timbo

Set it to 200ohms and it gave a reading of 3.4-3.5

What does that mean?

Try 20ohm range with the new battery.
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Originally Posted by wrinklearthur

Wipe the wire at the glow plugs clean with some methylated spirits, check the wires colour and the trace along with the size of the wire, should be yellow with black trace.
for the direction it then travels to the relay ( part number PRC 6913 ), a clue can be the way it curves as it enters into the wiring loam.



Yes that's the one.

The Glow plug timer relay is supposed to be mounted, under bonnet centre skuttle area.

The two thick wires are ;
1. ( N ) Brown, from battery
2. ( YB ) Yellow-black trace, switched wire from relay contacts going to the glow plugs.

The other thinner wires are ;
1. ( B ) Black, earth
2. ( YB ) Yellow-black trace, supply to Cold start warning light
3. ( WR ) White-red trace, function not documented, could also be ( NR ) Brown-white trace *
4. ( W ) White, switched by ignition switch

* The workshop manual is a bit vague on the circuit diagram as it caters for both petrol and diesel.
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Check out Dave's earlier post. It has a labelled picture of the timer. Thanks for the additional info though. This thread will be valuable for people with similar problems.

Originally Posted by timbo

Check out Dave's earlier post. It has a labelled picture of the timer. Thanks for the additional info though. This thread will be valuable for people with similar problems.

I have redone the circuit description I posted as I found some more info to fill in a couple of gaps.

Originally Posted by wrinklearthur

Wipe the wire at the glow plugs clean with some methylated spirits, check the wires colour and the trace along with the size of the wire, should be black with yellow trace.
for the direction it then travels to the relay ( part number PRC 6913 ), a clue can be the way it curves as it enters into the wiring loam.

The Glow plug timer relay is supposed to be mounted, under bonnet centre skuttle area.

The other thinner wires are ;
1. ( WR ) White-red trace, switched by ignition switch, starter position
2. ( YB ) Yellow-black trace, supply to cold start warning light
3. ( W ) White, switched by ignition switch, run position
4. ( B ) Black, earth path for the glow plug warning lamp

The two thick wires are ;
5. ( N ) Brown, from battery
6. ( BY ) Black-Yellow trace, switched wire from relay contacts going to the glow plug wire ( YB ) Yellow-Black trace.

.

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Originally Posted by wrinklearthur

I have redone the circuit description I posted as I found some more info to fill in a couple of gaps.


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Cheers mate, that's really helpful.