292 still no spark
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292 still no spark
i'm still not getting spark from coil.
if i perform a voltage test throughout the primary system, should i get a close reading to 12 volts? from battery to coil to resistor to ignition switch to ignition relay?
i should be looking for a voltage drop somewhere right?
if i perform a voltage test throughout the primary system, should i get a close reading to 12 volts? from battery to coil to resistor to ignition switch to ignition relay?
i should be looking for a voltage drop somewhere right?
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Originally Posted by ranch67
i'm still not getting spark from coil.
if i perform a voltage test throughout the primary system, should i get a close reading to 12 volts? from battery to coil to resistor to ignition switch to ignition relay?
i should be looking for a voltage drop somewhere right?
if i perform a voltage test throughout the primary system, should i get a close reading to 12 volts? from battery to coil to resistor to ignition switch to ignition relay?
i should be looking for a voltage drop somewhere right?
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i have changed condenser and points already.
i get voltage on ignition side of coil with ignition ON.
i have not checked voltage at the points.
could i have a weak ground from coil wire to distributor housing?
i get voltage on ignition side of coil with ignition ON.
i have not checked voltage at the points.
could i have a weak ground from coil wire to distributor housing?
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
12250 Ignition Coil Resistor 1956/64
1956/57: B7A-12250-A .. Ignition Coil Resister (Motorcraft DY-35)
1958/59: B8A-12250-A .. Ignition Coil Resistor (Motorcraft DY-36)
1960-64: C0LF-12250-A .. Ignition Coil Resistor~Ignition Switch to Coil (Motorcraft DY-37) 61.50-length No. 20 gauge wire~color coded pink
1958/59: B8A-12250-A .. Ignition Coil Resistor (Motorcraft DY-36)
1960-64: C0LF-12250-A .. Ignition Coil Resistor~Ignition Switch to Coil (Motorcraft DY-37) 61.50-length No. 20 gauge wire~color coded pink
Last edited by NumberDummy; Apr 11, 2007 at 12:14 PM.
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That wire has to stay above ground. Shouldn't be grounded. With a ohmeter,after zeroing it by touching both probes together and using ohms adj, test the primary side of the coil by testing across the primary terminals. You should see 1 ohms resistance. Coils with built in resistance should read 4 ohms. Remove the wires first.
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i already know the coil is good. i pulled it from my FE.
i will check for power from dist. side of coil to the points.
i may be losing a good connection there, despite changing points and condenser.
thanks for correcting my misinfo on the wire to distributor being a ground.
i will check for power from dist. side of coil to the points.
i may be losing a good connection there, despite changing points and condenser.
thanks for correcting my misinfo on the wire to distributor being a ground.
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the dist. wire to coil had a bad connection.
i replaced wire and got power to points.
i tried firing, no go.
now i get no power on dist side of coil if i hook up wire.
possible short? it does spark at that connection.
i replaced wire and got power to points.
i tried firing, no go.
now i get no power on dist side of coil if i hook up wire.
possible short? it does spark at that connection.
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Remember, you only have power the that side when the dist. is in correct position ie when the points are opening(is that right?) anyway it is pulses of voltage. Then the coil steps up the volts and sends back to dizzy and on to correct sparkplug via rotor.
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merlynr,
thanks for the info. i got power to points and she gets spark to plugs.
it still doesnt fire up. i will double check TDC and check rotor location.
i think she's off a tooth on the distributor/cam.
i'll keep you posted after this weekend.
thanks again.
thanks for the info. i got power to points and she gets spark to plugs.
it still doesnt fire up. i will double check TDC and check rotor location.
i think she's off a tooth on the distributor/cam.
i'll keep you posted after this weekend.
thanks again.
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i was correct, dist. was off a tooth. after a few tries cranking the battery died.
did a 4 hour charge, threw it in and she chugged, coughed flames. moved the dist. a little more, she fired right up! timing still needs to be set, but it runs smoothly.
thanks for your help.
there will be more later as i dig into this truck.
did a 4 hour charge, threw it in and she chugged, coughed flames. moved the dist. a little more, she fired right up! timing still needs to be set, but it runs smoothly.
thanks for your help.
there will be more later as i dig into this truck.
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Hi have a problem tried to start my f100. 272 engine but there is o spark coming out the coil don't know if I did not do the wiring right. Or has to see with distributor or points I'm new with y blocks need help have xternal resistor any advice will help thanks