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Location:
Dandenong Ranges, VIC
Registered:
July 2004
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Ign coil wiring
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Thu, 09 September 2004 07:31
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ive got a TA22 with a 2T and im pretty sure ive buggered up the wiring going to the coil. im not getting any spark out of the HT leads. no signs of life at all. ive just bought a brand new coil today, it is definately the right one.
could somebody with a 2T take a photo of their wiring for me? basically just the coil/resistor wiring. i rekon trying to explain it would be useless coz i dont know that much about electronics, so a picture is probably worth a bit more than 1000 words.
thanks heaps,
Jim.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Ign coil wiring
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Thu, 09 September 2004 07:46
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pictures of wires i don't have.
do you have a wire going from the negative side of coil to the dizzy (points)?
do you have a wire with +12V going to the +ve side of coil, and only has power when the key is in on/start? this wire may have the ballast resistor in it.
(basically, wire goes from ignition switch to ballast resistor, to +ve side of coil)
are there any other wires there?
there may be another wire on negative side that goes to the tacho.
if there are any more wires.. hmmmm
Cya, Stewart
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Location:
Dandenong Ranges, VIC
Registered:
July 2004
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Re: Ign coil wiring
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Thu, 09 September 2004 07:50
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there are 3 wires coming off the +ve side of the coil and 2 coming off the -ve side. the wires from each side of the resistor go to each side of the coil. there is a tacho feed but i dont know which one it is.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Ign coil wiring
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Thu, 09 September 2004 08:00
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well thats not good.. you're shorting the coil with the resistor!
undo all wires and check for 12V when key is on position.
tach feed usually comes off -ve side. points go to -ve side
power goes to +ve side. power may go to coil +ve via resistor.
good luck.. time for multimeter
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Location:
Dandenong Ranges, VIC
Registered:
July 2004
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Re: Ign coil wiring
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Thu, 09 September 2004 08:09
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i tryed to set it up like you said above, but theres another wire going to a condenser then to the body of the car. i guess i'll invest in a multimeter;.
thanks mate
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Location:
Brisbane, QLD
Registered:
February 2003
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Re: Ign coil wiring
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Thu, 09 September 2004 08:50
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why would there be a wire going to the condensor then to the body of the car?
makes no sense
condensors arent really a good place to earth anything...or do you mean compressor?
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Location:
Dandenong Ranges, VIC
Registered:
July 2004
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Re: Ign coil wiring
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Thu, 09 September 2004 09:47
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im pretty sure its a condenser, its about 20mm long, cylindrical with one wire coming out of it and a bracket to mount it to the body. it looks pretty identical to the condenser on the dizzy.
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Location:
Brisbane, QLD
Registered:
February 2003
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Re: Ign coil wiring
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Thu, 09 September 2004 09:58
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are you talking about the coil ignitor thingo?
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Location:
Dandenong Ranges, VIC
Registered:
July 2004
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Re: Ign coil wiring
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Thu, 09 September 2004 10:59
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does anyone have a 2T wiring diagram? i could only find an RAxx series manual, hence its all 18R/R-C crap in there. probably similar but still....
mabe i'll start a new thread with that.
nope, the condensor (if that is is real name) its much smaller and mounted under the coil, its only about 2cm (20mm) long and mabe 1cm diameter. upon closer examination, i think mabe it isnt earthing to the body just attatched to it.
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Location:
Brisbane, QLD
Registered:
February 2003
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Re: Ign coil wiring
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Thu, 09 September 2004 11:05
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ahh sorry
i read 20mm as cm 
the only think that comes to mind is capacitor, but i thought that was what an ignition coil was
a condensor looks more like a radiator(used to condence gas to liquid by radiating heat )
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Location:
Hobart
Registered:
June 2002
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Re: Ign coil wiring
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Fri, 10 September 2004 05:52
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a condensor is a capacitor. used on points systems to stop the primary flyback voltage going to high and burning out the points.
oldcorollas is right. switched 12V volts to coil (via balast resistor maybe), dizzy on negative side, tacho on negative side.
if ballast resister is used there is probably another wire going directly to positive side of coil which gets 12V when cranking, this compensates for low battery voltage while cranking.
btw, an ignition coil is an inductor.
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Location:
Brisbane, QLD
Registered:
February 2003
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Re: Ign coil wiring
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Fri, 10 September 2004 08:16
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| RA40Celica wrote on Fri, 10 September 2004 15:52 |
a condensor is a capacitor. used on points systems to stop the primary flyback voltage going to high and burning out the points.
oldcorollas is right. switched 12V volts to coil (via balast resistor maybe), dizzy on negative side, tacho on negative side.
if ballast resister is used there is probably another wire going directly to positive side of coil which gets 12V when cranking, this compensates for low battery voltage while cranking.
btw, an ignition coil is an inductor.
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right you are
just looked it up in the dictionary for peice of mind
learn something new every day
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Registered:
May 2002
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Re: Ign coil wiring
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Fri, 10 September 2004 10:27
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So you sorted it out yet dude?
to get the car running you'll need:
12V (when key in the On position) to the "+" side of coil
The condenser also on the "+" side (and mounted on an earth)
The wire from the points in the dizzy going to the "-" terminal.
the other wires on the "-" terminal will be for the tacho and something else non-essential.
good luck.
tim.
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Location:
Dandenong Ranges, VIC
Registered:
July 2004
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Re: Ign coil wiring
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Fri, 10 September 2004 11:28
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thanks for your help guys, i'll have to un-tape all the wires tomorrow and figure out whats what. i'll get the multi-meter onto it.
thanks again,
Jim.
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Location:
Dandenong Ranges, VIC
Registered:
July 2004
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Re: Ign coil wiring
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Fri, 17 September 2004 10:01
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ok, i bought a multi-meter today. i got the thing running (first kick while checking for spark with one lead out) wired up as RA28 said. fuckin ripper says i. found the tacho feed (while it was running) tacho worked, idling nicely, sun shining, all was good.
turned off the ignition to hook up the tacho properly and remove tools from the engine bay, thought id back her out for a wash, f****g bastard wouldnt fire.
ive got 11.5V to the +ve side of the coil, 11ish Volts from the output (-ve side), 11V at the points (from the bit before the contacts) yet no spark now at the plugs or HT leads. havn't changed anything from when it was running.
i will check fuses tommorow, any other suggestions?
i dont have much hair left to pull out anymore.
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Location:
townsville NQLD
Registered:
February 2004
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Re: Ign coil wiring
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Sat, 18 September 2004 10:21
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here is a basic diagram i drew on autocad 
brett
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Location:
sydney
Registered:
March 2003
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Re: Ign coil wiring
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Sat, 18 September 2004 13:55
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take dizzy cap off
turn engine over by hand till the points close
turn ignition on
open and close points with a screwdriver
u should get a spark at points and also a spark at the coil hi tension lead
if u get a spark at hi tension lead
then i recon the rotor button might not be aligned right
or dizzy cap or rotor are wrong
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Location:
Dandenong Ranges, VIC
Registered:
July 2004
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Re: Ign coil wiring
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Sun, 19 September 2004 04:43
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thanks guys. i got it in the end. turns out when i had the hotwire from the -ve side of the coil to the dizzy, it was touching the lead to the condensor on the dizzy. when i wired it so that those two leads didnt contact each other it ran perfectly.
thanks for all your help guys!
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