A friend as about changing plugs, wires and dizzy on his 60 Ferret... I thought I would share my email in case others might benefit...
As you are standing at the back of the tank looking forward, on the right side of the engine mid-way up is the distributor box. It is large, square and metal. Four nuts on the top. Lots of braided wire entering it.
If you remove the four nuts, the top cover comes off. Below will be a more standard looking distributor, but closed with the spark plug wires entering it. There are 3 brass screws holding the lid to the “dizzy” or distributor as the Brits call its. Remove the 3 screws and lift the cover off the dizzy. You now will see where the plug wires attach to the dizzy.
Remove all of the braided wires and the plug wires from both the plugs as well as from the dizzy. Throw these away. Don’t worry about rubber grommets holding the plug wires into the dizzy… only really needed if you plan to “”show” his tank for ribbon purposes at car shows or if people will be shooting at him and he wants to keep the dizzy set-up armored! Hence, remove all of this stuff. Go and buy whatever brand of plug wires you think are best. MSD makes some good wires. Buy a set of 6 with straight plug boots. The reach is pretty short so any box of wires should work fine. Trim them down if too long from the side that enters the dizzy (see pic above). You’ll notice the dizzy side allows you to just push the wires into small sharp connections in each wire recess. Don’t worry, each cylinder is clearly marked on the dizzy cover 1-6 so you can’t screw up (1 cyl is back of tank). Go ahead and trim the ends of each wire so that you are sure the wire pierces the sharp connector. I took a razor blade and shved a nice flat part on each wire and looked to see it protrude when I pushed it over the sharp connector with a pair of long nose pliers. The pliers work well because it allows you to push without fear of shearing into the plug wire. Remove and install a new coil wire as well using the same approach. When you are done, you will have 6 new plug wires exiting the dizzy from what used to be the braided cable connectors but now just protruding. I shot some black silicon caulk into each hole to maintain a little weather resistance into the dizzy. Remove the old plugs and replace with your new Champion N5C ones. Put the cover back o n the dizzy, the cover back onto the metal protector and attach all of your plug wires to your plugs.
Head over to the other side of the engine, near the backside of the tank. The coil is also enclosed in a bullet resistant cover (see below). Take the cover off (furthest right cover in this picture) by removing the 4 nuts. Reach in and unscrew the knurl nut that secures the coil wire that runs to the dizzy. DO NOT DROP the knurl nut like I did into the engine compartment! Remove the old coil wire running to the dizzy and pull the new one you attached to the dizzy into the coil. Close it all back up. You now have (1) new plugs, (2) new high performance plug wires, and (3) a new coil wire. Together you have just increased the intensity of the spark by like 100x! Compare the old plugs to the new plugs and you’ll see what a mean. How did they even run on the old plugs??
Now, depending on your interest, there is one to three other things you might consider that I have done. Here you go…
(1) Check engine timing. Under the dizzy, about flush with the exhaust header, are two nuts (one on each side of the dizzy shaft). If you loosen these, you will be able to easily adjust the engine’s timing. I found mine was off quite a bit. Have someone start and warm the engine up. Once warmed and idling, keep in mind were the dizzy was optically when you started and then turn the dizzy left and right from its initial stance and listen to engine. If RPMs climb, you have achieved a better timing. If they fall or engine stalls, go back to prior position and confirm engine runs smoothly. You’re done timing engine. Tighten the two bolts.
(2) Check dizzy cap, rotor and points. The dizzy has three long bolts (the lower one can be seen in 2 of the pictures high above) that hold the dizzy cap and top down. Loosen all three bolts and the dizzy unit top – the dizzy cap – will come apart from the lower section of the dizzy.
Clean your points carefully with a piece of fine sand paper. Maybe spray some electronic cleaner as well into the point to make nice and clean. Take the rotor off and also clean that off:
Clean the contacts inside the dizzy cap. I used a dremel tool with a soft brush end so that I would not remove any of the contact but just clean.
All done. You can put the rotor back and reinstall and tighten the dizzy back with the three mounting bolts.
(3) OR, if the rotor, points, etc. looked bad or pretty beat up, there is one last thing you can do that I just did this weekend… reopen the lower portion of the dizzy and expose the rotor, points and condenser. Go to the following web site
http://www.classicheads.com/Electronic_Ignition.html
and call and order a new magnetic sending unit that will replace the whole base plate assembly (looks like this and your application is a Rolls Royce B60 six cylinder for a 1960 Daimler Ferret)…
The new assembly drops in and after rotor is put back, easily tightened and all done. Two wires run from the unit to your coil. That’s it. The ignition system with this new magnetic module, plugs and oh, buy a new coil from Jolley Manufacturing – why not? – and the tank will start and run like a brand new car! All for about $400 for the unit!
Do not hesitate to call if you have any questions… Have fun. 1.847-345-3015. Tim