[Healeys] New Wiring Harness

[Bob Spidell]

re: "... how do you get the correct instruction with the harness? " 

I've rewired two Healeys; a BJ8 in situ and a BN2 on a bare chassis. For the BJ8, I went lead-by-lead; i.e. replace the old with the new as you go along (don't yank the old one then try to replace). For the BN2 I just followed the schematic in the shop manual. If you don't have the Bentley shop manual for your BN6, now's the time to get it; the schematic is accurate though I've seen inaccurate harnesses (one wire with wrong color/tracer). The only P-clips you can't R&R are in the transmission tunnel; I just tie-wrapped the new harness to the old P-clip until I pulled the engine. 

If you're rewiring existing, start by cutting the old harness where it enters the cockpit. Feed the new harness--it should have a large grommet installed--through the firewall. You can connect the gauges and switches at this point, or leave them for when you feel like working on your back in a yoga position. Work from the firewall out to the corners, either by cutting and replacing as you go, or following the schematic. Same for working with a bare chassis though, of course, you won't have the old harness for guidance (note that if the old harness has been replaced or 'repaired' before it might not be exactly correct). 

It's a good idea to replace the connectors, as they can corrode and spawn electrical gremlins. Fill the connectors with dielectric grease before you insert the new leads to help prevent corrosion. 

Bob 

----- Original Message -----



Sounds good. What if you started with a bare shell of a car? 



On Tuesday, February 23, 2016 5:25 PM, Charlie <mgcharlie at comcast.net> wrote: 




Gerry, 

When you remove the old harness, mark each wire as to what it connects to. Lay it out on the floor along with the new one and mark the new one, then connect each wire to what it is marked to connect to. If some don't match up, use the Lucas color coding chart to figure out where they go. It should work out that where they connect will be physically somewhere close to where the wire is, and you should have a corresponding wire on the old harness in the same spot, but maybe a different color. 

Charlie 




I am working on a BN6. One of the projects will to replace the wire harness. I am presently doing the same with a MGTC. One of the reference books has a chart with one set of color code and the the one that came with the new harness has another. Neither one is the correct chart. I want to avoid this with the AH, has anyone had this problem and if so how do you get the correct instruction with the harness? 
Thanks 
Gerry 




-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/healeys/attachments/20160224/165981d2/attachment.html>