32 V-12 Ignition System Questions

[Don Rundgren]

In my quest for dependability I will be starting my tuneup / checkup on this car with the ignition system and have some questions:
1. Is it possible to use a dwell meter / tachometer with this 6V dual coil system and if so how do you hook it up? If it is possible, what should the dwell reading be?

2. What type of currently available spark plug will work for replacement?

3. I will do a compression test while the plugs are out, what should the normal reading range be?

4. The spark plug cables are old and may even be original with metal number rings on each, the distributor boots are in bad shape and there are no boots at the plug ends. Can anyone recommend a supplier for a correct reproduction set of cables?

[Don Rundgren]

Come on, any V-12 experts out there? I have learned via the AACA forum that dwell readings were not used in the 30s so I guess that question is answered. What I really need is to talk with someone who has actually replaced and adjusted the dual points on a V-12 and can translate the very complicated procedure described in the shop manual into steps I can understand. I was also directed to Egge Machine for plug wires, any other good sources? I still need a spec for replacement plugs and a compression test reading range, thanks.

[Johan Boltendal #158]

What part is puzzling you, if you go by the manual point 1 to 6 it should be able to do the job.
It's working in the same manner all engines, let me know how I can assist. Johan

[Bill Gauch #23121]

For a source of plug wires, I would probably call RI Wire. I have heard nothing but good things about them. I checked their web site (http://www.riwire.com/) and they don't list wires for a V-12, but they do list them for a V-16. I'm sure they could make you up a set. I would assume you could either send them the originals and they will make a duplicate set. You may be able to just tell them the length and end connector styles.

[harry s]

Don, The dwell meter is not much help tuning the V 12, but a timing light worked great for me. After setting the gap on the points and the timing process Johan mentions described in the service manual you can use a timing light to set the timing precisely as described for each cylinder bank. This was a very tedious process, but once you are on the marks for each bank it really smoothes out. You can then go to the carbs and sincronize them. Good Luck, Harry