Re: HEMI Woes
[Re: Paul G]
#1634679
06/24/14 11:42 PM
06/24/14 11:42 PM
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Joined: Jan 2003
Posts: 3,103 Phila Pa
scatpacktom
master
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master
Joined: Jan 2003
Posts: 3,103
Phila Pa
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I'm pretty sure you still have a ignition issue. I would look hard at the cap, rotor and wires (primary and secondary) A good place to start would be to remove the coil wire from the coil and have someone spin the motor while holding the wire near it. If you have a good and sharp blue spark its further down the line. If it is lazy and yellow it is most likely high resistance in the wiring to the coil(fuzzy bulkhead connector, "green" wire harness, ect) My guess is that you will have hot spark out of the coil. Don't disregard the plugs either. I've jumped in the car in the spring after a long winters nap and had the car misfire like nobodies business. Set of plugs later it's cured. Good luck
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Re: HEMI Woes
[Re: Paul G]
#1634680
06/25/14 04:53 AM
06/25/14 04:53 AM
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Joined: Jul 2013
Posts: 1,272 Northern Calyfornua
Sxrxrnr
pro stock
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pro stock
Joined: Jul 2013
Posts: 1,272
Northern Calyfornua
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I earlier suggested ignition wiring or ignition switch as a possibility. Assuming that ballast resister is ok, disconnect stock ignition wiring going into it and run a 16 gauge or heavier jumper wire to the ballast from the positive post of battery. Then drive car.
If no ballast, run jumper wire directly to coil positive,,,but not for long as can be hard on points.
This will eliminate any doubts or concerns that switch or wiring is cause.
You do have negative from coil going to distributor,,,not positive which goes toward ignition switch?
Check dist cap for cracks and ensure that wiring internal in dist that goes coil to points is all in order. Have you checked dwell.
How many inches of vacuum at idle? Certain of no consequental vacuum leaks?
How much initial advance of timing,,,,,with any vacuum advance disconnected when checked?
Spark plug wires all clean and well insulated,,,,with no cross firing? Run engine in the dark and have a look.
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Re: HEMI Woes
[Re: Paul G]
#1634684
06/27/14 12:45 PM
06/27/14 12:45 PM
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Joined: Jan 2003
Posts: 21,123 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,123
Niles , Ohio
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Just because the points look good they can still be bad.I just went thru it with one of my tractors.Not a Hemi but still the same thing.Start cold and ran great.warm up and started to miss and lose power.New points and adjust and all fine.Rocky
Chrysler Firepower
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Re: HEMI Woes
[Re: Paul G]
#1634691
07/05/14 12:29 AM
07/05/14 12:29 AM
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Joined: Jul 2013
Posts: 1,272 Northern Calyfornua
Sxrxrnr
pro stock
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pro stock
Joined: Jul 2013
Posts: 1,272
Northern Calyfornua
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Quote:
Ok, I know that I'm getting pretty old these day but know I'm starting to feel real dumb.... I have replaced points and set the gap to about 0.017 (don't have access to a dwell meter). Replaced ballast, hooked everything up now I'm not getting any spark? only 4.7v at the coil???
Again, visit my earlier posts. Use 16 gauge jumper wire from battery positive to coil positive to rule out ignition wiring or ignition switch.
If all is now ok, then defective switch or wiring. Pay attention on my warning on ballast resistor when using this jumper test. If no improvement, at least you can rule this out as cause.
This is exactly one simple way to hot wire and steal your car,,,of course still need to jump starter too And deal with any steering lock. 20 seconds should just about do it all.
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