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AQ271 No Spark

RJP44

New member
I am having a difficult time trying to get this motor to start. Its been determined that there is no spark, so I tested the coil and nothing coming from the coil. Replaced the coil and still nothing. I jumped a hot wire direct to the hot terminal on the coil and still cannot get any spark from it. When I touch the jumper to the + terminal on the coil and I put a test light to the hot wire, it does not light the test light, its as if it is being grounded and as soon as I take the jumper wire off the + terminal on the coil the jumper wire is hot again. The ground terminal on the coil is grounded. Does this sound like anything you guys have seen before?
 
According to MarinePartsEurope, the AQ271 uses a VR ignition system.
http://www.marinepartseurope.com/en/volvo-penta-explodedview-7743470-30-17617.aspx


I am having a difficult time trying to get this engine to start. Its been determined that there is no spark, so I tested the coil and nothing coming from the coil. Replaced the coil and still nothing.
How did you test the ignition coil?

I jumped a hot wire direct to the hot terminal on the coil and still cannot get any spark from it.
Be very careful when jumping or feeding + directly to a coil.

When I touch the jumper to the + terminal on the coil and I put a test light to the hot wire, it does not light the test light, its as if it is being grounded and as soon as I take the jumper wire off the + terminal on the coil the jumper wire is hot again.

The ground terminal on the coil is grounded.
That is NOT being sued as a Negative (aka ground) terminal!
The VR uses that side to complete the circuit (along with capacitive storage).
When the VR has completed coil saturation, the VR triggering system opens this circuit causing the collapse of the energy field.
This collapse is when the secondary winding releases the high tension voltage.... i.e., "spark" to the center of the distribution cap. The rotor then distributes the spark to each cylinder.

Does this sound like anything you guys have seen before?

Possible causes:

bad sensor
metallic debris on reluctor wheel
de-magnatized reluctor wheel

See the trouble-shooting section in your OEM (not Seloc or Clymers) work shop or service manual.

 
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