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Bill K
Guest
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 Posted:
Sun Oct 17, 2004 8:09 pm Post subject:
Old car 6 volt system. Question on Ignition coil. Hope someo |
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My 55 Nash will not start. Checking distributor, I get no spark at
points. Are ignition coils modfel specific or will any 6 voilt
ignition coil work? How about capacitor?
Bill K
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Bill
Guest
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| Posted:
Sun Oct 17, 2004 8:56 pm Post subject:
Re: Old car 6 volt system. Question on Ignition coil. Hope s |
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In article <r765n0hmd2l1fdjisal1roo4ge037dk2rg@4ax.com>, Bill K
<willklenn@charter.net> wrote:
| Quote: | My 55 Nash will not start. Checking distributor, I get no spark at
points. Are ignition coils modfel specific or will any 6 voilt
ignition coil work? How about capacitor?
Bill K
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Disconnect the capacitor and see if you get a spark. If you do, the
capacitor is shorted.
ISTR there are 2 different coils used. (maybe more???) |
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Eugene Blanchard
Guest
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| Posted:
Tue Oct 19, 2004 6:06 am Post subject:
Re: Old car 6 volt system. Question on Ignition coil. Hope s |
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What do you mean that you get no spark at points? You should get spark at
the ignition coil to distributer cap hi tension lead. At the points, you
should measure +6V open and zero closed. I would check the point gap and
that the points are indeed opening. Also if you've changed the rotor,
sometimes they will supply a lubricant for use between the rotor and
points. I've had the lubricant cover the actual point contacts during the
first revolution and then the lubricant acted as an insulator.
Check that you have +6V going to the coil and a good ground with the
ignition on.
Check the coil: If you have an ohmmeter, measure the primary of the coil
(+6V lead to points lead), should be a low resistance like less than 1 or 2
ohms. Measure the secondary of the coil (+6V to high tension lead), should
measure in the thousands of ohms (not quite sure of the exact range).
Disconnect the cap in case its shorted as Bill suggested. Check that the
distributer cap is not corroded or worn. You should be able to use pretty
much any 6 Volt distributer and coil. I can't see them differing too much.
Do you have a ballast resistor in series with the coil? It may of gone open.
If it went open, then the engine would start in cranking position but stop
in the ignition position.
Bill K wrote:
| Quote: | My 55 Nash will not start. Checking distributor, I get no spark at
points. Are ignition coils modfel specific or will any 6 voilt
ignition coil work? How about capacitor?
Bill K |
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Bill
Guest
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| Posted:
Tue Oct 19, 2004 11:04 pm Post subject:
Re: Old car 6 volt system. Question on Ignition coil. Hope s |
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In article <BE_cd.19586$cr4.6629@edtnps84>, Eugene Blanchard
<blanchae@telus.net> wrote:
| Quote: | What do you mean that you get no spark at points? You should get spark at
the ignition coil to distributer cap hi tension lead. At the points, you
should measure +6V open and zero closed. I would check the point gap and
that the points are indeed opening. Also if you've changed the rotor,
sometimes they will supply a lubricant for use between the rotor and
points. I've had the lubricant cover the actual point contacts during the
first revolution and then the lubricant acted as an insulator.
|
Lubricant is used between the distributor CAM and the rubbing block on the
points. Not between the rotor & points. I'm not sure how you would apply
the lube between them anyway, since they're separate!
| Quote: |
Disconnect the cap in case its shorted as Bill suggested. Check that the
distributer cap is not corroded or worn. You should be able to use pretty
much any 6 Volt distributer and coil. I can't see them differing too much.
When talking about distributors, use "capacitor" (or condensor) when you |
mean "capacitor".
The "cap" is the thing the spark plug wires plug into. Calling a
"capacitor" a "cap" leads to confusion. |
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Eugene Blanchard
Guest
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| Posted:
Wed Oct 20, 2004 10:16 am Post subject:
Re: Old car 6 volt system. Question on Ignition coil. Hope s |
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Bill wrote:
| Quote: | In article <BE_cd.19586$cr4.6629@edtnps84>, Eugene Blanchard
blanchae@telus.net> wrote:
What do you mean that you get no spark at points? You should get spark at
the ignition coil to distributer cap hi tension lead. At the points, you
should measure +6V open and zero closed. I would check the point gap and
that the points are indeed opening. Also if you've changed the rotor,
sometimes they will supply a lubricant for use between the rotor and
points. I've had the lubricant cover the actual point contacts during the
first revolution and then the lubricant acted as an insulator.
Lubricant is used between the distributor CAM and the rubbing block on the
points. Not between the rotor & points. I'm not sure how you would apply
the lube between them anyway, since they're separate!
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You're right the lubricant is used between the distributer CAM and the
rubbing block. I put some on the CAM and when it rotated, it was flung on
to the points and insulated it. The car wouldn't start....
| Quote: |
Disconnect the cap in case its shorted as Bill suggested. Check that the
distributer cap is not corroded or worn. You should be able to use pretty
much any 6 Volt distributer and coil. I can't see them differing too much.
When talking about distributors, use "capacitor" (or condensor) when you
mean "capacitor".
The "cap" is the thing the spark plug wires plug into. Calling a
"capacitor" a "cap" leads to confusion.
|
Sorry, force of habit from 35 years of electronics slang. |
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