Anyone know how I can open the lucas wiring block that holds the +battery / alt wires

[scarts]

Hi

I need to replace the positive battery lead but can't seem to find how to pry open the plastic black box that is screwed into the chassis frame inside the engine bay down the drivers side about 50cm away from the battery. This box seems to have alternator and + battery lead. I don't want to force break it open if it is serving a purpose I can't otherwise easily replicate. If it's just holding the wires out of the way of the engine then fine but if it is a junction box then that could be a little more tricky.

Any tips appreciated!

[DJT]

Lucar connections. Just pull them out.

[mole42]

Is this a Mk1 car with the battery +ve cable going to the block? That needs a different approach.

However if it's a Mk2, do as Dave says and pull out the Lucar connectors. But that Mk2 connector doesn't have the battery + connected to it.

[KOY 23]

Is this a Mk1 car with the battery +ve cable going to the block? That needs a different approach.

However if it's a Mk2, do as Dave says and pull out the Lucar connectors. But that Mk2 connector doesn't have the battery + connected to it.

Mine does. The whole point of it is to join the battery to the alternator and to all the loads on the car.

[mole42]

Oh, these tricky Triumph Stags! On my Mk1.5 the battery + cable goes around the back of the engine and connects to the starter motor. There are two heavy gauge brown wires that come back to the connector block close to the battery and from there to the alternator.

[72BLUE]

Any tips appreciated!

I have found a photo that I grabbed off the forum when I replaced my battery positive cable a while back.



I think it is screwed to the body (or chassis leg in my case). On the photo above, it does look like there is a screw there. Once unscrewed from the car body, the black plastic block comes easily away to reveal a chunky metal (copper?) fitting that is soldered to the thick battery cable. This fitting has the x4 male lucar spades for the brown + wires shown in the pic.

If you are replacing the battery + cable, has the new one got the chunky fitting soldered on?


Cheers
Keith

[scarts]

Thanks for all the replies. I have been able to pull the connectors off and remove the lucar (thanks for the correction) block. Doubt I would have used as much force as it needed in the end unless I knew it was just a spade connection.
I'm going to get a new +lead made up and was wondering what people here thought of the idea that I get it longer by about 40cm on the terminal end so it can wrap around the back of the battery instead of across the front of the power steering pulley? - This is the reason for needing a new one made up......

[KOY 23]

G'day Scarts.
Good idea, last battery I bought had reversed terminals to keep the positive in a safer place.

[mole42]

That just shows what a bitza my Stag is. That block on mine is white plastic, has the four brown wires into Lucar connectors but no connection to the battery + cable at all.

[scarts]

That just shows what a bitza my Stag is. That block on mine is white plastic, has the four brown wires into Lucar connectors but no connection to the battery + cable at all.

Interesting. I wonder where yours gets power from?
Here's the pic of mine. You can see the connector is clamped directly onto the battery lead. I'm fairly sure my lead is original because the insulation has shrunk by about 1/2 inch from both ends

IMG_4407.jpg

[scarts]

G'day Scarts.
Good idea, last battery I bought had reversed terminals to keep the positive in a safer place.

They aye's have it
Have heard if you go to a proper battery business they will tap them however you want, centred or poles either side. Not going to down that route as I need the lead anyway but probably would have when the battery died otherwise.

[mole42]

Interesting. I wonder where yours gets power from?
Here's the pic of mine. You can see the connector is clamped directly onto the battery lead. I'm fairly sure my lead is original because the insulation has shrunk by about 1/2 inch from both ends

The power comes from the connection at the back of the starter motor.

[staggering]

Guys - interesting thread - would I be correct in thinking this is the connector block that can cause the infamous "Stag click / no engine turn" problem (as mine does regularly still) or am I confusing this with another connector block, thanks

Cheers
Ian

[KOY 23]

Different connector. The "no click" one is the 4 way block at lower front n/S of bulkhead. Other causes of no click are possible.

[staggering]

Different connector. The "no click" one is the 4 way block at lower front n/S of bulkhead. Other causes of no click are possible.

Thanks for quick response, will check out soon - will also be going thru all the earth connections / batt connections as well - it is a very intermittent problem but irritating when it happens.

Cheers
Ian