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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>I should probably be able to work this out for myself, but – just to be sure – I’m asking the experts.<o:p></o:p></p><p class=MsoNormal>Talking about a Lucas DM6a in a MkII BT7. And a 123 alternative.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>So, I have a 123 installed in the car and a Lucas DM6A, complete with Pertronix, in the boot. (Trunk!) Yes, both distributors have the correct “Drive dog(?)” on the bottom. (Part 25 in the attached pic).<o:p></o:p></p><p class=MsoNormal>Thus, it is mechanically possible to remove the 123 and drop in the Lucas in its place.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>My question is this……if I manage to accomplish this without messing up the timing ie rotating the distributors in the clamp, will everything line up and the engine fire up?? I hope that the Drive dog will/can only slot into one position and that will be the one and only correct position. If you see what I mean?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I hope to be able to carry the Lucas as a spare “get you home” and, likewise, hope that it’s a straight swap without having to frig around with the timing.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Am I correct? It’ll be a straightforward swap or will it turn into a complicated roadside tune-up??<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal>Simon<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>