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Motor quits; idling after warmed up
Topic Started: Jan 18 2013, 03:52 PM (337 Views)
Galen
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I have not licked this problem but I know its not fuel related as discussed in prior posts. I think its electrical in nature. I am focusing in on the coil. although new it may be bad. Is this a likely cause of my problem?
1954 CJ3B -Transport Yellow-
1953 B4 Dodge Power Wagon
1941 Dodge WC 1/2 ton military
1967 Plymouth Valiant
Culpeper, VA
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oldtime
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Quote:
 
I am focusing in on the coil. although new it may be bad. Is this a likely cause of my problem?

I don't think so.
Normally when an ignition coil goes bad its become shorted and so it no longer funtions.
Sometimes an ignition coil intermittently goes bad.
In that case it is very hard to start the engine but it seems to function O.K. once you get it started.

A bad condensor fits your scenario because it typically shorts out after it heats up.
Currently building my final F-134 powered 3B .
Rock Crawler using factory parts from the Willys Motors era (1953-1963)

http://s4.zetaboards.com/CJ3B_Bulletin_Board/topic/30228766/1/#new
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Galen
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So you think it may be the condenser rather than the coil. That's an inexpensive quick fix.
1954 CJ3B -Transport Yellow-
1953 B4 Dodge Power Wagon
1941 Dodge WC 1/2 ton military
1967 Plymouth Valiant
Culpeper, VA
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oldtime
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A condensor can be tested for resistance otherwise replace it with a known good condensor.
The consensor for a CJ Autolite 6 volt system should have from .23 to .26 microfarads of capacitance.
The consensor for a CJ Autolite 12 volt system should have from .25 to .28 microfarads of capacitance.
Currently building my final F-134 powered 3B .
Rock Crawler using factory parts from the Willys Motors era (1953-1963)

http://s4.zetaboards.com/CJ3B_Bulletin_Board/topic/30228766/1/#new
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div4gold
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Do you have a 12 v to 6 volt resistor on your ignition system?
Old retired fart living in Ione, WA. I have a 1964 CJ3B. Recently overhauled original motor, transmission and overdrive. 11" Bronco drum brakes on all 4. Needs a new coat of paint but that will have to wait till next summer, it's next summer and I'm working on that now :) UPS & FEDEX will continue to profit :)
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div4gold
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The reason I asked about the resister is because we used to run a bunch of Chrysler Corp vehicle's . The had the 12 v to 6 v ceramic resister on the cowling. I saw lots of failures to the ignition when the resister would heat up and separate the connection. Got so everybody carried a spare in the glovebox.
Old retired fart living in Ione, WA. I have a 1964 CJ3B. Recently overhauled original motor, transmission and overdrive. 11" Bronco drum brakes on all 4. Needs a new coat of paint but that will have to wait till next summer, it's next summer and I'm working on that now :) UPS & FEDEX will continue to profit :)
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