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[sjc]

Interesting one... after been laid up since June because it needed the head gaskets doing, the dis pack has decided it no longer wants to send a spark to cylinders 1 and 5.

Wondering if this is a typical failure?

At first I thought I'd made a boo boo of replacing the head gaskets because it was only running on 4 cylinders but did a compression test and all 6 are getting about 16 bar.
So I checked all the plug leads were ok, nothing from 1 & 5 so replaced with spares, still nothing.
Put leads 1 & 5 onto dis pack outputs for 2 and 4 (wasted spark pairing) and hey presto, a spark, and proof that the leads are ok.

So I can either have it running on 2, 3, 4, 6 or 1, 3, 4, 5 which at least proves all the cylinders work if they have ignition.

Anyone else had a similar failure?  No sign of rust or splits in the casing.

[serek]

last year I fit new bosch coil pack to my omega and after few minutes , nr5 on coil pack went down not expect that from new coil pack
replaced with other unit no issue since

[sjc]

Thanks Serek, confirms that individual outputs can die.  I'd more expected a whole coil to go with the loss of a pair of outputs.

Just realised I made a mistake above, I can have it running on 1, 3, 5, 6 or 2, 3, 4, 6

Anyway, replacement dis pack on its way to me so normal service should resume shortly, can't wait to hear the 7k howl again