1989 Jaguar XJS with Marelli ignition.

Can the distributor rotor only be installed one way?

In the process of swapping spark plugs I rotated the engine with the rotor removed and lost the placement of rotor on shaft.

(I got distracted after removing the rotor, dealing with two seized plugs that required an easy out to remove).

Thanks!
Andy

 

Afaicr, it will go two ways. Not a big deal. Put it together, and if it doesn't start, take it apart, and move it 180 degrees. Or, switch coil leads. That is easier.

 

Not sure if you can make it fit 180 degrees out but with the asymmetric mounting boss it will only look right one way.

 

Please correct me if I am wrong but I think it would be very difficult to install the rotor incorrectly.

If you look at the photos below you will notice that the screw holes on the rotor and distributor are not on the same centerline. One of the holes is slightly off center.





I'm pretty sure the offset is there to insure proper rotor alignment.

Mark

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I checked again and there is only one way to install. Although it wasn't immediately apparent because the difference is so slight.

Whew!