Pmag experiences,combined threads

[sadams]

Sounds like you are running aviation plugs. When I first installed my pmag I used aviation plugs with the plug wire kit supplied by emag air. I had very similar symptoms to what you are experiencing with intermittant problems. It turns out that 2 of the plug wires were making intermittant connections. I finally found that the little washer on the plug end of the harness had cut into the wire. I never really liked the way their aviation plug connecters were fabricated, so I switched to auto plugs with more bullet proof connectors on the harness. I have not had a single problem since. Intermittant loss of spark to the 2 plugs you keep changing would account for the fouling. My bet is that those 2 plug wires are bad.

[N131RV]

Originally Posted by sadams

Sounds like you are running aviation plugs. When I first installed my pmag I used aviation plugs with the plug wire kit supplied by emag air. I had very similar symptoms to what you are experiencing with intermittant problems. It turns out that 2 of the plug wires were making intermittant connections. I finally found that the little washer on the plug end of the harness had cut into the wire. I never really liked the way their aviation plug connecters were fabricated, so I switched to auto plugs with more bullet proof connectors on the harness. I have not had a single problem since. Intermittant loss of spark to the 2 plugs you keep changing would account for the fouling. My bet is that those 2 plug wires are bad.

Quite possible. I would love to run auto plugs, but my engine requires long reach plugs. None of the adapters I have found are suitable for long reach plugs.

I'm going to be rechecking everything today. I'll also try to hook up to their computer program (oh Joy, another couple hours spent fabricating and routing a cable).

[Dean Pichon]

Originally Posted by sadams

Sounds like you are running aviation plugs. When I first installed my pmag I used aviation plugs with the plug wire kit supplied by emag air. I had very similar symptoms to what you are experiencing with intermittant problems. It turns out that 2 of the plug wires were making intermittant connections. I finally found that the little washer on the plug end of the harness had cut into the wire. I never really liked the way their aviation plug connecters were fabricated, so I switched to auto plugs with more bullet proof connectors on the harness. I have not had a single problem since. Intermittant loss of spark to the 2 plugs you keep changing would account for the fouling. My bet is that those 2 plug wires are bad.

I agree. Look hard at the plug wires. When I upgraded my -4 with dual P-Mags, I received the "crimp your own kit" for the plug harness and was rather underwhelmed. I returned it to EMag for the the pre-fabricated (auto plug) harness which seems far better than the first option. The system has been great for the past 18 months. Hang in there...

Dean Pichon
Bolton, MA

[Radomir]

Lighspeed has long reach adapters.. you could get 'em from them..

[N131RV]

Originally Posted by Radomir

Lighspeed has long reach adapters.. you could get 'em from them..

I called to ask about them. Got voicemail, but less than 1/2 hour later, they called me back. I have ordered the adapters and plugs.

Still waiting for Emagair to call me back, I left another message.

[rvator51]

I think Brad may not be back from vacation or trip yet. I received an email about a week ago that he would be on the road for about a week.

[Buggsy2]

Sorry for the thread drift, but, what's the difference between e-mags and p-mags?

[szicree]

Pmag makes it's own power.

[Buggsy2]

Originally Posted by szicree

Pmag makes it's own power.

...they're made by the same company, E-Mag Ignitions.

Wonder if there is a handy table or chart comparing the several electronic ignition options for experimentals?

[N131RV]

Originally Posted by rvator51

I think Brad may not be back from vacation yet.

It would be nice if their voice jail indicated "we're on vacation until _____" instead of "we're on the shop floor or with a customer".