Sorry this a bit of a long one!
I have a 1977 XJ12 Series 2 that I’ve had for many years now and it runs really great. When I got it back on road after being in a barn for 17 years I decided to replace the functioning OPUS system with the Re-OPUS that was still available then from Australia. I choose that system since the rest of my dissy was in very good condition. At the same time I put in a new coil for the OPUS system, the Lucas DLB198.
After about 2 years the car started to run a little rough and since I was chasing a few EFI issues I didn’t think it was ignition related until I checked everything else on the engine. My still “new” coil had very low voltage and produced a weak spark. I still had the original coil that came with the car on a shelf, I put it back on the car and I had good spark again.
I’ve run the car like this for a few years, with a very old coil, which I don’t prefer. However I don’t want to put a new on again just to have it fail after maybe 1000 miles.
I therefore wonder if anyone else is running RE-OPUS on their pre-HE V12 and if so, have you been able to run a different coil? Maybe one that is more powerful? My aim is to get as strong of a spark as possible without damaging the RE-OPUS electronics. Unfortunately the man who made the RE-OPUS is no long active. Sadly I believe he has passed away.
Hope someone has the same system as me with a good coil!
- 1979 Jaguar XJ6 Series 2
- 1966 Jaguar S-type 3.8
- 1977 Jaguar XJ12 Series 2
- 1991 Jaguar XJS Convertible Classic Collection