Well, I haven't posted on the thread in a bit, but that doesn't mean I haven't been busy. I've been doing many little things, getting prepped for the wiring harness installation. One problem I was having was trying to figure out where to buy large firewall grommets that had wide enough mounting grooves to accommodate a fiberglass firewall. Thanks to Bob Perry (who by the way has one of the most
beautiful CCX's that I have ever seen!), the answer to my problem was easy following his common sense advice. What I am doing is measuring the diameter of the groove in the grommet to determine the size of the hole it needs to be mounted in. Then I am measuring the outside diameter of the entire grommet. I add 1/4" to that outside diameter, and cut that size hole in the fiberglass firewall. Then I cut the smaller grommet mounting hole size in the aluminum firewall overlay. This way the grommet is mounted in the aluminum, and then the whole grommet is nestled into the fiberglass hole that is large enough to surround it while it is installed in the aluminum. Since the aluminum isn't mounted yet to the firewall, this is all very easy to do. Here's a picture of the large hole in the fiberglass, one of two that I have to drill:
Speaking of aluminum firewalls, last week I had a visit at home from Rich Carlisle, and I gave him the header pipes from my old 351C Contemporary to use on his car. He was kind enough to mail me a template for a CCX firewall that he had in his possession. I mailed it to Nick Acton (Mickmate) of Acton Custom, who cut and bent up for me a beautiful aluminum firewall:
I'm trying to keep the firewall fairly clean and uncluttered. I like an original style look, but going for the full Lucas type harness is just beyond my talent and it's somewhat primitive too. Electrical is my weakest area and I just don't want any problems, so I went with a modern Ron Francis harness. I turned my chassis into the world best harness installation center:
I am mounting the MSD 6AL box inside the firewall behind the dash, out of sight, away from the heat and vibration of the engine compartment. I am drilling and countersinking holes on the engine side of the firewall for the stainless countersunk screws that will be used to mount the aluminum mounting plate for the MSD box, then putting nuts on the inside of the firewall to lock the crews in place. Same with the fuse box. Once this is done and all the grommet holes are drilled in both the aluminum and fiberglass firewalls, I will mount the aluminum firewall over the fiberglass one, and this will hide all the mounting screws for the MSD box and the fuse box behind the aluminum. Meanwhile the screws will be locked in place due to the nuts on the inside of the firewall, so I can easily remove and replace the aluminum mounting brackets if the need arises.. Here is the MSD box mounted to the aluminum mounting bracket fabricated for me by Nick Acton (Mickmate) of Acton Custom:
I'm using the anti-vibration mounts as supplied by MSD. Between them and the standoff of the aluminum bracket, the MSD box has plenty of space behind it for cooling the MSD unit.
I also had Nick make me a aluminum mounting bracket for the monster fuel pump
that I need to feed this engine. I used anti-vibration mounts to try to keep the racket down from the electric pump, although I doubt I'll hear it above the 3" core Classic Chambered pipes!
Another thing I did was to completely recondition the Lucas headlight buckets. They each had a set of sloppy multi-spliced leads in them, they were a mess. I stripped the buckets down, sanded and painted them and replaced all the hardware in them that I could with stainless. I obtained two original sets of Lucas headlight leads from British Wiring, and I will be replacing the bullet type connectors with Weatherpack connectors. Now the headlight buckets are better than new:
I was able to find a reproduction of a Autolite voltage regulator some time ago on Ebay fairly cheaply. I have a upgrade in my alternator that was done by an old Mom and Pop shop around here that has been around forever. For about $100 they rebuilt my original alternator and upgraded it to 90 amps. Because of this increased output I am reluctant to use a mechanical regulator so I bought a state of the art electronic regulator from Ron Francis, and mounted the Autolite cover on it. Original? No. Proper part number? Unlikely. Look pretty good? I think so!
SHhhhhhh, don't tell anyone!
One other detail I got done was to install faux tubes coming down behind the dashboard. I drilled and tapped the tops into the cowl hoop, and the bottoms slide through grommets and they end cut off even with the lower surface of the transmission tunnel. They're real solid and weather tight. I thought they came out pretty good. Here's a shot of them with the harness that I just laid on top the transmission tunnel to start wiring. Here I go with the part of the project that scares me most, electrical. The journey of a thousand miles starts with a single step. Here's a shot of step one......
Keep your fingers crossed and think happy thoughts. I have the electrical system well thought out, and this car will have an awesome grounding system. I can promise you that once the bugs are sorted out, this car will have NO electrical bugs. The duplex grounding kit that Ron Francis sells is great, every electrical component on this car will have a dedicated grounding wire going back to a central ground point. There will be no chassis grounds at all, everything will have a dedicated lead going to a grounding post that the negative battery terminal is attached to. In addition there will be a ground strap from this terminal to the cylinder head, and another from this terminal to a starter bolt. It should all work pretty good. Oh, yeah, I almost forgot, but this picture reminded me. I completely disassembled, cleaned, re-lubed and made pretty the wiper motor. I know that no one will see it but I know it's there. You can just see the bottom of it hanging down on the right side of the cowl area. I'll probably never use it, but it hums really smoothly now, and it looks like new. I hope you guys aren't bored silly by this stuff, I have lots of time on my hands now and this build thread gives me something to do.