MG MGB and MGB GT Tech Talk
I could use a little advise,took my car out for a ride,it is runing great.Too in on the highway kicked in the od and it hesitates bad,the car pulls hard through all the gears,i wound it out and there is no miss,then i drove it slower up a hill and didnt downshift,it had a good load on the engine and again no hesitation at all. Yet when i kick in the od she starts to miss.It really seems like a electrical issue but i dont know.Any thoughts about this
Does sound electrical to me as well. My first thought is that the additional load of the O/D solenoid drops the voltage to the ignition system such that it becomes marginal under a load. I'd check all connections between ignition switch and the coil, and between the coil and distributor. Make sure your distributor is well grounded to the block...ie 0 ohms between it and the block. Also check the condition of the braided cable that jumps either the transmission rubber mounts or the engine rubber mounts. It needs to make a good ground on both sides.
