HKSdrift3r Posted August 4, 2011 Share Posted August 4, 2011 Hey fellas, finally starting to work on my 78 280z. I bought the car with the webers already installed. It runs and what not so Im happy with that. I would like to clean up the wiring in the engine bay so what are these on the relay cover? They seem to be hot wires as they are some what thick gauge. They also have jumpers on the back of the black little box. Im also thinking of removing the EFI relays and wires as I do not need them. Though would removing them have anything to do with the ignition? Thanks so much!! -George Quote Link to comment Share on other sites More sharing options...
bthomp Posted August 4, 2011 Share Posted August 4, 2011 those 4 wires are fusible link wires. AKA wires that are fuses. The black box has some relays that you might need and some that i know for sure that you dont. Quote Link to comment Share on other sites More sharing options...
HKSdrift3r Posted August 5, 2011 Author Share Posted August 5, 2011 hmmm, hence the dilemna. Any idea what those fusible links were for? They are jumped now any way. Also would like to know for certain which EFI related relays I can ditch. Fuel pump will be rewired to a switch any way, as will the starter. Only wires I need in the engine bay is headlights, turn signals, distributor, coil, and water temp. Maybe the wipers and windshield fluid too . -George Quote Link to comment Share on other sites More sharing options...
beermanpete Posted August 6, 2011 Share Posted August 6, 2011 The "jumpers" as you call them are the fusible links. You cannot simply remove them as they feed the power to most of the electrical components in the car. The headlights, wipers, heater, etc., are all protected by these fusible links. Originally there was a plastic cover on each of the two black bases that made them look nicer. You could relocate the fusible links easily enough. Removing them by disconnection will disable much of your electrical system. Removing them by bypassing the fuses will eliminate an important protection device. Quote Link to comment Share on other sites More sharing options...
Austin240Z Posted August 6, 2011 Share Posted August 6, 2011 (edited) Here's some info from AtlanticZ: The different colors indicate different amperage Here's the link to info about upgrading from fusable links to Maxi fuses: http://www.atlanticz.ca/zclub/techtips/fusiblelinks/index.html I did this recently on my Z, pretty easy and straight forward. Hardest part is finding the fuse blocks, had to get mine at the audio section of walmart, none of the parts stores in town carry maxi fuse blocks anymore. Edited August 6, 2011 by Austin240Z Quote Link to comment Share on other sites More sharing options...
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