Starting Problems when Hot

[march2013]

I need some advice on my 1974 MGB. Over the last year or so she starts up fine and drives normally for a while. When I park it and come back after an hour or two, I have a hard time starting the car and when I get it going and drive and accelerate the car bogs down, sputters and has very little power. If I press down on the gas pedal hard and quickly it will hesitate. It seems when the car gets hot this does this. A cold start and drive for a short time seems fine. Any advice?

Gary Rodgers

[amgba]

Take out your ignition rotor.  Destroy it and buy the red uprated one from Moss. The black ignition rotors of late have a rivet that causes a path to ground to the shaft when it gets warm. I had this exact same problem on my Bs. New red rotors fixed it for good.  It could be something else (no venting in fuel tank, etc).  But get a good baseline and get a good rotor. Check your plugs, cap, wires (or replace them, not overly expensive, if you haven't done them in a while).

Paul Seeberg