Fusible link size for GP relay when using 12v bypass

[HelluvaEngineer]

Hi all. I promise I read the FAQs and looked at the TM diagram. I'm confused about which size fusible link to use when jumping from the 12v block directly to the new Glow Plug relay that I am also installing. The old wires are brittle and I'd rather put something new in.

So it looks like the original is a 12ga wire calling for a 16ga fusible link. But some people reuse the old link. That's marked 3.0mm on mine, which I think is a 14ga fusible link. It's blue. But, that came before the resistor pack, which obviously adds a significant load on the first wire and the fusible link, which makes sense because the wire from the resistor pack looks smaller.

Any issues using a new 12ga wire and 16ga fusible link from the 12v takeoff to the new relay? Thanks.

 

[MarcusOReallyus]

The current draw on the GPs is about 100 amps, as measured by antennaclimber a while back. I don't think a 16 ga link is going to handle that.

 

[doghead]

IIRC, I made a new short wire with 8ga wire. I just removed and taped over the 24v ring terminal, in case I needed to slave start with a completely dead front battery(never has happened).

This picture from the helpful threads seems pretty clear what the writer of that thread did(used).

https://www.steelsoldiers.com/attachment.php?attachmentid=482495&d=1317173992

 

[HelluvaEngineer]

IIRC, I made a new short wire with 8ga wire. I just removed and taped over the 24v ring terminal, in case I needed to slave start with a completely dead front battery(never has happened).

This picture from the helpful threads seems pretty clear what the writer of that thread did(used).

https://www.steelsoldiers.com/attachment.php?attachmentid=482495&d=1317173992

Thanks, I ended up doing something similar, although I put the fusible link first. Should be fine I suppose. I'll rethink it if I run some bigger wire from the battery.

Sent from my VIVO XL using Tapatalk

 

[HelluvaEngineer]

Seems to work fine. I tried one of these snowplow relays. It seems to work well, although it's almost silent. The truck starts well after the plugs cycle.