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Libra MEMS 3 Loom - What do the fuses and relays control? 
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Post Libra MEMS 3 Loom - What do the fuses and relays control?
Hi all,

The epic rebuild continues but now starting to put stuff back on the car which is a welcome change from removing and refurbishing.

I'm fitting up the rear bulkhead whilst the engine frame is away being blasted / powder coated and i've re-fitted the Mems 3 loom - just wondering if anyone can tell me what the various fuses and relays control?

Picture attached to show what I've got - appreciate any replies in advance. Also attached a picture of the bulkhead showing the z cars rear beam and refurbished tank in position.


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Tue Jul 04, 2017 8:54 pm
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Post Re: Libra MEMS 3 Loom - What do the fuses and relays control?
That looks like someone has changed the usual MEMS relay to separate relays and fuses.


Tue Jul 04, 2017 9:03 pm
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Post Re: Libra MEMS 3 Loom - What do the fuses and relays control?
Cheers Roger,

I think this was a GTM supplied loom though for the later Mems 3 engines; Mike Ross kindly sent me a picture of his as supplied and it matches this one? I think one of the relays is for the fuel pump but no idea on the rest??


Tue Jul 04, 2017 9:08 pm
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Post Re: Libra MEMS 3 Loom - What do the fuses and relays control?
MEMS3 has a separate relay module with Main Relay, Fuel Pump Relay & Starter Relay. I think the spare socket is for cars with A/C.

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Wed Jul 05, 2017 4:43 pm
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Post Re: Libra MEMS 3 Loom - What do the fuses and relays control?
Thanks. Any idea what circuits the fuses are for?


Wed Jul 05, 2017 4:55 pm
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Post Re: Libra MEMS 3 Loom - What do the fuses and relays control?
What are the ratings and what colour wires go to them?

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Wed Jul 05, 2017 7:11 pm
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Post Re: Libra MEMS 3 Loom - What do the fuses and relays control?
From the top:

15a fuse - Purple + Brown
10a fuse - Green/Pink + White
20a fuse - Brown/Blue - Brown
10a fuse - Brown/White - Brown
15a fuse - Brown/Yellow - Brown


I'll have to get my multimeter out and see where the circuits terminate and compare to the wiring diagrams but wondered if anyone has the easy option first :lol:


Wed Jul 05, 2017 7:22 pm
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