P38 GEMS Coil Packs

Spongo · Post by **Spongo** » Fri Apr 11, 2014 1:08 pm

When they go faulty do they fail on just one output or both, I seems to have a coil pack that is providing an output on one turret but not the other? Been swapping leads around and proved it, I have another on the way but it did seem strange to me.

kiwicar · Post by **kiwicar** » Fri Apr 11, 2014 8:33 pm

Hi
on a 2 pole coil pack to test them you need a plug in each lead that is earthed, I have spent hours over the years testing just one end with the other floating . . . . ie both work or both don't.
actually having a bit more think about it you could have a dead short on one post to earth, but that can be checked in 30 seconds with a multi meter.
best regards
Mike

Spongo · Post by **Spongo** » Fri Apr 11, 2014 9:07 pm

Reason I ask is that's if I swap leads 1 and 6 the fault moves, it's the only common point as far as I can see

ChrisJC · Post by **ChrisJC** » Sat Apr 12, 2014 8:43 am

I guess it depends on the fault, but as has been said, if one has shorted to ground (or broken down so it sparks to ground internally), then you could get a coil pack that appeared to only work on one output.

Chris.

Spongo · Post by **Spongo** » Sat Apr 12, 2014 5:22 pm

New coil pack it is then, the money pit continues to live up to its name

Spongo · Post by **Spongo** » Wed Apr 23, 2014 7:54 am

All sorted turned out to be a bad joint on one of the wires going into coil pack 3, so I now have a spare GEMS coilpack