hi all -- ignitor 3 is in and r unning OK. but theres a glitch.
ballast voltage to relay - switches 14 volts back to coil (flamethrower 2) then to ignitor 3 - all OK and running. switch off ignition switch and engine keeps running! there is 4 volts of residual voltage in the circuit. what I would like to do is bypass the ballast resistor and see if that fixes as I currently run the coil off the ballasted voltage (12.8volts) but would prefer to feed the flamethrower coil the full 14 volts.
from memory the ballast is in the wiring harness in the engine but please advise location and thoughts on increasing voltage to the coil
cheers
Comment
ok no probs - no mine is not drawing 20 amps I just applied ohms law but theres more to it than that I suspect.. will get it sorted now and just tap off as you have.
If you are pulling 20 amps you definitely have other issues. Have you tested your amps draw? As I recall mine with the Pertronix Ignitor III ignition and Flamethrower III coil (0.32 ohm primary resistance) pulls about 1.5 amps at idle and 2.5 to maybe 3 amps at hi rpm. I was concerned about exceeding amperage draw until I considered the fact that the resister wire taps into the same "pink" ignition feed from the fuse box as the kick-down switch pink wire I am tapping into!
The instructions are pretty simple .. just trace the resister wire from + side of coil terminal back to the source behind the resistor wire (e.g. fuse box) of the fire. In our case it is the pink ignition wires and with the THM equipped cars you have it right there in the engine bay ready to tap into. Per the instructions, just run a 12 gauge heavy insulator wire from "switched 12 volt ignition source to the coil and igniter you will be fine.
Here is a good illustration of the primary cranking harness showing the path of the resistor wire back to the pink ignition wire circuit and also shows the pink kick-down wire and connector for the THM kick-down switch. Just use a tap in and run a 12 gauge insulated wire to coil and disconnect the resistor wire and you are all done. If you are concerned about shorting you can add a 10 amp inline fuse. (a 5 amp would probably be more than enough).
Here is that picture:
jason sorry another question. the flamethrower 2 is 0.6 ohms so its drawing 20 amps? whats your advice to protect the circuit if I use the kickdown switch wire?
thanks Jason I will look into that. Just further to my last any reason why the ignition circuit is not fused, based on the factory wiring diagram?
thanks David. I note the ignition circuit has no fuse that I can see. I will tap behind the ballast resistors (i see 2 in the circuit diagram) and fuse the connection.
I'm running the Ignitor II with matching flame thrower. I ran a switched full voltage line from the fuse box to the coil and ignitor. I disconnected the ballast wire from the coil and taped up the end. You must have something back feeding, to keep the engine running when you turn off the ignition switch.
Started by Todd Fox in Restoration Discussion. Last reply by Todd Fox 16 hours ago. 2 Replies 0 Likes
Has anybody in here found a good supplier of replacement floor braces for the 64 convertibles. Continue
Started by Jason Edge in For Sale 20 hours ago. 0 Replies 0 Likes
I just pulled a very good Cadillac Cylinder Head Water Outlet Pipe for cars with AC with the extended arm for compressor. That came off a running parts and is a nice piece. Included is a new 180…Continue
Started by Larry Rees in General Discussion yesterday. 0 Replies 0 Likes
Don’t know if this is common knowledge or easy to find but was able to order a 40A Circuit breaker to fit in the fuse box from Crimp Supply inc or on Amazon from the same company source. Just thought…Continue
Started by Jason Edge in Trivia. Last reply by Jason Edge on Monday. 12 Replies 0 Likes
It has been a while since we did some trivia and I was watching a movie last night and saw this 1964 Coupe de Ville that briefly makes an appearance. The Trivia Question is: What Movie Is this?…Continue
Posted by Dave Fehrle on March 23, 2024 at 3:23pm 8 Comments 0 Likes
While checking my Carter carb with engine running, I took the air cleaner off and there was a very loud hissing sound of air. I placed a piece of paper over the carb and it didn’t move up or down, is this normal?
Posted by Chase on March 21, 2024 at 5:55am 0 Comments 0 Likes
Hey everyone, has anybody done a Vintage Air AC/Heat setup in their car? I want to bypass the old vacuum setup and go with a Vintage Air Gen 2 model. Before I get started, does anyone have any experience with this? (Which model to go with, do’s and dont’s, etc.) It looks pretty involved. Any and all info/pics would be greatly appreciated. Thanks!
Posted by CHRIS CARLSON on December 6, 2023 at 10:54am 0 Comments 0 Likes
Who rebuilds original AC accumulator dryers for 1964 Cadillac? I have been on Classic auto air in Tampa FL wait list for over a year , There is one on Old air products web site that looks very similar to the original # 21-4214A but states it fits 1962 Gm cars, The one recommended for a 1964 Cadillac is half the length 21-4215A What is everyone using ? I would prefer to be as original as possible. Thanks
Posted by Les Eastling on November 15, 2023 at 10:34am 1 Comment 0 Likes
My son, unbeknownst to me, had all three of the horns on our 1963 Eldorado completely restored. We had recently added the Eldorado trumpet horn to the two standard horns and the sound was not very good... we had heard good ones so we knew something was not right... but there was not much we could do to get better sound from the 3 horns.
There is a restoration service called The Horn Works who my son…
ContinueApril 21, 2024 from 8pm to 9:30pm – Zoom
0 Comments 0 Likes© 2024 Created by Jason Edge. Powered by
You need to be a member of 63/64 Cadillac Website to add comments!
Join 63/64 Cadillac Website